ICMM-2019 0 Book of Abstracts · 2020-02-14 · Chairman, Geethanjali group of institutions Message...

ICMM-2019 0 Book of Abstracts


ICMM-2019

International Conference on Multifunctional Materials

December 19-21, 2019

Sponsored by

Defence Research and Development Organisation (DRDO)

In association with

MRSI, Hyderabad Chapter

Book of Abstracts

Organized by

Geethanjali College of Engineering and Technology Cheeryal (v), Keesara (M), Telangana-501301

www.icmm.gcet.edu.in, [email protected]

http://www.icmm.gcet.edu.in/


Copyright © Geethanjali College of Engineering and Technology Cheeryal, Keesara, Telangana state, India

All rights reserved. No part of this publication may be reproduced or transmitted, in any form or by

any means, without permission. Any person who does any unauthorized act in relation to this

publication may be liable to criminal prosecution and civil claims for damages.

First Published, 2019

Disclaimer: The views expressed in the articles are those of the Authors/contributors and not

necessarily of the editors and publishers. Authors/contributors are themselves responsible for any

kind of plagiarism found in their articles and for any issues related to paper.

ISBN: 978-93-5396-620-1

Editors:

Dr. G. Neeraja Rani, Professor, Geethanjali College of Engineering and Technology

Dr. J. Anjaiah, Professor, Geethanjali College of Engineering and Technology

Dr. P. Raju, Associate Professor, Geethanjali College of Engineering and Technology

Dr. M. Aruna Bharathi, Professor, Geethanjali College of Engineering and Technology


FOREWORD

Nowadays the fundamental challenge is to integrate different functions in one material

system especially if the functions seem to leave off each other. Hence, understanding the function-

structure relationships is quintessential so that it helps in developing a competence in the system

approach for multifunctionality. The multifunctionality in materials enables many modern

applications which can improve quality of life and address many important global challenges.

Consequently the interdisciplinary field has recently extended to computational engineering

approaches for virtual material design and even to advanced fabrication schemes considering the

advantage of digitalisation. This has lead to reinforce the objective of enabling and accelerating the

development and manufacture of the products of the future.

The conference aims to bring together leading academicians, scientists, industry personnel,

researchers and research scholars to exchange and share their experiences and research results

about all aspects of manufacturing, material science and engineering. It also provides the premier

interdisciplinary forum for scientists, engineers, and practitioners to present their latest research

results, ideas, developments, and applications in the area of manufacturing, material science and

engineering. ICMM- 2019 plays a significant role in inspiring break through innovations from

fundamentals to technological challenges and applications that are shaping era of Industry.

In the present scenario, the theme of the conference is quite apt and innovative. The

conference will definitely provide an excellent opportunity to the young minds to learn and express

their ideas and a space to interact with celebrious and eminent minds across the globe. This

academic arena will bring innovative minds together to a curiosity driven research to promote an

entrepreneurial culture to the innovations and applications in universities, industry and research

institutions.

We are the ambassadors of “Go Green Initiative” and are bent on saving trees and reduce

e-waste. So we have printed only the abstracts of invited talks and list of contributed talks. The

Abstracts of Oral and Poster Presentations have been made into a single PDF file with separate ISBN

and are available on the conference website. All the participants of the conference can download

this file.

I wish that this conference would ignite the spirit of research.

Conference Chair/convenor

Dr. R. S. Raju Dr. G. Neeraja Rani Dr. J. Anjaiah Dr. M. Aruna Bharathi


Phone: 9182058187 Website: www.gethanjaliinstitutions.com

[email protected]

Geethanjali

Geethanjali College of Engineering and Technology AUTONOMOUS

(Accredited by NAAC “A” Grade; ECE, CSE, EEE & ME, B. Tech Programs Accredited by NBA; Approved by AICTE, New Delhi; Permanently Affiliated to JNTUH)

Sy. No. 33 & 34, Cheeryal (v), Keesara (M), Medchal District -501 301

Sri. G. R. Ravinder Reddy Chairman, Geethanjali group of institutions

Message

It is a prodigious moment to announce that Geethanjali College of Engineering and Technology is

hosting the First International Conference on Multifunctional Materials (ICMM 2019), in association

with MRSI, Hyderabad Chapter from 19th- 21st December, 2019.

The conference aims to bring leading academicians, experts, innovative researchers and students

under one roof. The conference is a platform for intelligent minds to propel their potential for

driving technological innovation. It promotes a wonderful future for those who would like to master

Material Science.

I congratulate the team for their efforts to provide enriching experience to the participants. I hope

that the team would take the beacon of dynamism further.

Sri. G. R. Ravinder Reddy

Sponsored by TEJA EDUCATIONAL SOCIETY, HYDERABAD Office : Sy. No. 33 & 34, Cheeryal (v), Keesara (M), Medchal District -501 301

http://www.gethanjaliinstitutions.com/


Phone: 9182058187

Website: www.gethanjaliinstitutions.com [email protected]

Geethanjali

Geethanjali College of Engineering and Technology AUTONOMOUS

(Accredited by NAAC “A” Grade; ECE, CSE, EEE & ME, B. Tech Programs Accredited by NBA; Approved by AICTE, New Delhi; Permanently Affiliated to JNTUH)

Sy. No. 33 & 34, Cheeryal (v), Keesara (M), Medchal District -501 301

Prof. (Dr) S. UDAYA KUMAR

B.E., M. E., M. Tech (Hons.) (New Zealand), Ph.D. PRINCIPAL

Message

It is a moment of honour to announce that our college is hosting the First ever International Conference on Multifunctional Materials (ICMM 2019), in association with MRSI, Hyderabad Chapter from 19th- 21st December, 2019. The rudimentary objective of the conference is to provide a platform for academicians, researchers, engineers and industrialists to deliberate on the emerging trends in the field, sustainability and challenges encountered pertaining to the Multifunctionality of Materials. ICMM provides an excellent opportunity and space to the dynamic minds to learn and express their ideas. I firmly believe that this conference would be a trend setter in arousing the curiosity of researchers. I would like to express my admiration and appreciation to the organizing committee for their commendable effort. I wish the conference will pave a new path towards the best possible results that would meet the demands of the fast growing industry. I convey my warm greetings and felicitations to the Organizing Committee as well as the participants.

Sponsored by TEJA EDUCATIONAL SOCIETY, HYDERABAD Office : Sy. No. 33 & 34, Cheeryal (v), Keesara (M), Medchal District -501 301

http://www.gethanjaliinstitutions.com/


Message

I am delighted to know that Geethanjali College of Engineering and Technology is hosting its First

International Conference on Multifunctional Materials (ICMM 2019), in association with MRSI,

Hyderabad Chapter from 19th- 21st December, 2019.

The conference would provide a platform for researchers, scientists, faculty members to present

their innovative ideas and technological advances. In a nutshell, the conference promises to reach

greater heights of excellence.

I extend my best wishes to the Organizing Committee, delegates, participants and the team for the

success of the conference. I also congratulate the Management for initiating such pioneering step.

Dr. G. Ranjith Reddy


COMMITTEES

International Advisory Chair

Dr. Evgeny Moos, Ryazan State University, Russia Dr. Andrei Sechnoi, Samara State Aerospace University, Russia Dr. Masahiro Sasaki, University of Tsukuba, Japan Dr. Ravindra Babu K, University of Kurdistan, Iraq Dr. Oleg Kondakov, University of Kuala Lumpur, Malaysia Dr. Sridhar K, MRL Penn state University, USA Dr. Palani Balayya, NUS, Singapore Ms. Kiranmayee Kilaru, Scientist, NASA-USA Dr. Miriyala Muralidhar, Shibaura Institute of Technology, Japan Dr. Kamesh Namuduri, University of North Texas, USA Dr. P. Venkateswar Rao, University of Kingston, Jamaica National Advisory Chair

Dr. Vikas Kumar, Director, DMRL, Hyderabad Dr . N.R. Munirathnam, Director General, C-MET Dr. N. Veeraiah, Acharya Nagarjuna University, Guntur Dr. Ajit R. Kulkarni, IIT-Mumbai Dr . J. Janardhana Reddy, DRDO-DMRL, Hyderabad Dr. James Raju, Central University, Hyderabad DR. RK Kotnala, NPL(Retd.), New Delhi Dr. B. Yegnanarayana, IIIT, Hyderabad Dr. S.N. Joshi, CSIR-CEERI, Pilani Dr. M.S. Ramachandra Rao, IIT-Chennai Dr. S.V. Manorama, CSIR-IICT, Hyderabad Dr. Tata Narsinga Rao, ARCI, Hyderabad Dr. P.K. Jain, ARCI, Hyderabad Dr. M.V.N. Ambika Prasad, Gulbarga University, Karnataka Dr. Chandra Prakash, SSPL(Retd.), New Delhi Dr. K. Venkateswar Rao, JNTUH, Hyderabad Dr. A.R. James, DRDO-DMRL, Hyderabad Dr. M.B. Suresh, ARCI, Hyderabad Dr. N.H. Ayachit, KLE Technological University, Hubballi Karnataka Dr. V.K. Deshpande, VNIT, Nagpur Dr. Chandra Prakash, SSPL, New Delhi Dr. N. Satyanararyana, Pondicherry Central University Dr. S. Bala Kumar, University of Madras, Chennai Dr. G. Prasad, Osmania University, Hyderabad Dr. K. Venu Gopal Reddy, NIT, Warangal Dr. D. Dinakar, NIT, Warangal Mr. Lolla Srinivasa Murthy, Bees Energy Consultancy, Hyderabad


Steering Committee Dr. S. Udaya Kumar Dr. R.S. Raju Dr. G. Neeraja Rani Dr. J. Anjaiah Dr. M. Aruna Bharathi

Registration Committee Dr. V.S. Triveni Dr. B. Madhuri Dr. S.K. Nuslin Bibi Mr. K. Nagaraju Ms. V.Padmaja

Hospitality Committee Mr. G. Naveen Ram Mr. N. Nagireddy Mrs. G. Padma Mr. A. Shiva Kumar Mr. G. Sunil Mr. K. Laxmi Reddy Mr. Prasad KSSRCV Mr. S. Poornachander Rao

Book of Abstracts Committee Dr. M. Aruna Bharathi Dr. J. Shankar Dr. B. Madhuri Dr. P. Raju

Inauguration Committee Dr. B. Nagamani Dr. K.Shashikala Ms. P. Mercy Kavitha Ms. K. Swaroopa Ms. B. Vanaja Rani

Accommodation Committee Mr. P. Sreedhar Mr. S. Rajesham Mr. T. Abhilash

Transportation Committee Mr. K. Mahender Mr. Venkateshwar Rao Dr. M. Devaiah Dr. G. Mahesh Dr. K. Venkateshwarlu Mr. K. Jithendar Reddy

Cultural Committee Mrs. P. Mercy Kavitha Dr. K. Shashikala Ms. B. Vanaja Rani Ms. K. Swarupa Mr. T. Abilash

Sponsorship Committee Mr. K. Jithendar Reddy Mr. S. Rajesham Mr. P.Sreedhar

Oral Sessions Committee Dr. N.Subhadra Mr. Y. Phani Kishore Mr. K. Sudhakar Ms.V. Manjula Ms. S. Lalitha

Poster Sessions Committee Dr.Sk. Mohammed Ali Mr. P.Sudheer Rao Ms.T.V. Prashanthi


Contents

Programme Schedule ..................................................................................................................................... 26

List of Plenary and Invited Talks ............................................................................................................................. 29

PT 1: Safer Multifunctional Sunscreen Active Ingredient via Native Atomic Defects Promotion – Concept to Commerce ...................................................................................................................................................................... 30

A. R. Kulkarni .................................................................................................................................................... 30 PT 2: Influence of noble metal ions on electrical and optical characteristics of non-conventional animonate glass ceramics- possible materials for NLO and piezo-optical devices..................................................................... 31

J. Ashok and N. Veeraiah* ................................................................................................................................ 31 PT 3: Microwave Resonators with Bulk and Thin Film Solids .......................................................................... 32

K.C. James Raju ................................................................................................................................................ 32 PT 4: Indigenous Nanomaterials-Based Technologies A “Make in India” Initiative ......................................... 33

Tata Narasinga Rao .......................................................................................................................................... 33 PT 5: Thermal efficient materials for electronic applications ......................................................................... 34

J. Janardhana Reddy, V.V. Bhanu Prasad ......................................................................................................... 34 PT 6: Development of oxide based functional materials for magnetic refrigeration....................................... 35

Sunkara V. Manorama ...................................................................................................................................... 35 PT 7: Synthesis of carbon nanomaterials composites and their interfacial effects on properties ................... 36

Dr. P.K. JAIN ...................................................................................................................................................... 36 PT 8: Perspective functional electronics on a base Synergistic processes ....................................................... 37

E. N. Moos ......................................................................................................................................................... 37 PT 9: Nano-carbon materials from the viewpoints of practical field electron emitters .................................. 38

Masahiro Sasaki1,2*

and Yoichi Yamada1 .......................................................................................................... 38

PT 10: Modeling and Synthesis of High-Temperature Superconductors: Problems and Perspectives ............. 39 Andrei I. Sechnoi ............................................................................................................................................... 39

IT 1: Mosquito Bite Inspired Microneedle Technology for Health care Applications ...................................... 40 Ganesh Kumar Mani ......................................................................................................................................... 40

IT 2: Studies of Conducting polymers and its applications .............................................................................. 41 Dr. M.V.N. Ambika prasad ................................................................................................................................ 41

IT 3: Metal Oxide Nanostrutures for Gas Sensing ........................................................................................... 43 K. Venkateswara Rao ........................................................................................................................................ 43

IT 4: Photonic Bandgap Crystals: Physics, Fabrication and Applications ......................................................... 44 B.V.R. Tata* ...................................................................................................................................................... 44

IT 5: Inorganic waste management: for better tomorrow .............................................................................. 45 D D Ramteke

1,2 .................................................................................................................................................. 45

List of Oral Presentations ..................................................................................................................................... 46

ICMM: 103 | Raman, FTIR and XPS Studies of Oxyfluoro -Phosphosilicate Glasses ........................................ 47 Vootukuru John Reddy

1,2, H. Umamaheshwari

3* R. Padmasuwarna

1, Venkata Krishnaiah Kummara

4*, Ravi Nirlakalla

4

.......................................................................................................................................................................... 47 ICMM: 108 | Fluorescent Trilayer OLED Device: an Electrical and Optical Characterization Based Simulation48

Arvind Sharma, Sagar Bhattarai, and T. D. Das

* ............................................................................................. 48 ICMM: 109 | CONCEPT OF DEVELOPING THE MULTI FUNCTIONALFIXTURES USING MAGNET RHEOLOGICAL FLUID. 49

GANDLA UDAYASREE ........................................................................................................................................ 49


ICMM: 110 | Tuning Magnetic Anisotropy in Fe1-xNix Thin Films: Theeffects of composition and substrate temperature ...................................................................................................................................................................... 50

D. Taparia,1 J. Arout Chelvane

2, A. Srinivasan

1 and Perumal Alagarsamy

1 ...................................................... 50

ICMM: 113 | Comparative analysis of the stuctural properties of Cr-Zn andCr Co Nanoferrites ..................... 51 Dr. M. Lakshmi

* ................................................................................................................................................ 51

ICMM: 114 | Sr3Gd(PO4)3:Sm3+

nanophosphors for lighting applications ....................................................... 52 P. Shahab Khan

1,2, B.C. Jamalaiah

2*, B. Narasimha Rao

3, G.V. Lokeswara Reddy

4 ........................................... 52

ICMM: 117 | Spectroscopic Studies on Alkaline earth ions on Bisumuth based oxide Glasses ....................... 53 *Ch. Srinivasu

a, A. Edukondalu

b, S. Stalin

c and Syed Rahman

c ......................................................................... 53

ICMM: 119 | Observation of Dielectric Anomalies at Magnetic Phase Transitions in0.5(BiFeO3) – 0.5(Ba0.9Sr0.1TiO3) Multiferroic Ceramic ...................................................................................................................................... 54

T. Sreenivasu1, K.S.K.R. Chandra Sekhar

1, Anantharao Paila

1, B. Suryanarayana

1, K. Chandra Mouli

1, J. Praveen Kumar

2

and Patri Tirupathi2*

......................................................................................................................................... 54 ICMM: 120 | LiGd (1-x)(WO4)3:xEu

3+ nanophosphors for photonicapplications ................................................. 55

P. Raghupathi1,2,3

, B.C. Jamalaiah2*

, T. Subrahmanyam4, K. Venkata Rao

5 ...................................................... 55

ICMM: 122 | Impact of annealing temperature on resonance field, line-width andanisotropy in Ni0.65Zn0.35Fe2O4 56 M. Lakshminadh

1, M. Murugan

2*, GSVRK Choudary

3, M C Verma

4 ................................................................. 56

ICMM: 123 | Optimized Energy Consumption algorithm using IoT for Indoor Environment........................... 57 V.Usha Devi

1, Dr.S.V.S. Prasad

2 ........................................................................................................................ 57

ICMM: 124 | IOT in Agriculture Irregation and Monitoring ............................................................................ 58 M Vinod ............................................................................................................................................................ 58

ICMM: 125 | Automatic track fault and object detection inrailway infrastructure ......................................... 59 K. Gangalatha, Dr.B.Sridhar,S V S Prasad ......................................................................................................... 59

ICMM: 126 | Soldier Tracking And Health Monitoring System ....................................................................... 60 Badrinath Pulimamidi, D. Naresh Kumar, S.Venkata Surya Prasad .................................................................. 60

ICMM: 127 | Synthesis and Characterization of highly Fluorescent Donar/AcceptorSubstituted Imidazole Derivative for Solar Cell Application ............................................................................................................................... 61

Shashikant Walki,a Lohit Naik,

*b Ravindra M.K,

a Hemantkumar M.S,

*c YoganandaK.C,

d Soniya Naik,

f Malimath G.H,

*b

Prashanth S.A,e and Mahadevan. K.M.

*a .......................................................................................................... 61

ICMM: 128 | Design of high sensitive alcohol sensor with vehicle ignition disabling system ......................... 62 S. Harivardhagini .............................................................................................................................................. 62

ICMM 132 | Investigation on the effect of Ni codoping on the structural and optical properties of transparent Al:ZnO thinfilms ........................................................................................................................................................ 63

Srinatha N1, Raghu P

2, H M Mahesh

3, Suresh Kumar M R

1, Basavaraj Angadi

4,* ............................................. 63

ICMM: 133 | Effect of Sb3+ and Y3+ ions on optical and spectroscopic properties of holmium oxide doped calcio borate glasses ................................................................................................................................................ 64

M. Gopi Krishna1,2

, Ravi Kumar Guntu1, *

, N.V. Prasad2 .................................................................................... 64

ICMM: 134 | The characterization of Nd doped BiFeO3 multiferroicpolycrystalline materials ....................... 65 J. Ramesh

a, S. S. K. Reddy

b, M. Sreenath Reddy

c, Ch. Gopal Reddy

a, P. Yadagiri Reddy

a, K. Rama Reddy

a, V.

Raghavendra Reddyd ........................................................................................................................................ 65

ICMM: 137 | Photoluminescence Studies of Eu3+

and Tb3+

Activated Ba2SiO4Phosphor ................................ 66 K.Srikanth* and M.Srinivas ............................................................................................................................... 66

ICMM: 141 | Gamma Ray Induced, Structural and Electrical Properties of Nickel Ferrite Nanoparticles ........ 67 Pooja Khedekar*, Shubhada Thorat, Mangesh Khedkar, Swapnil Jadhav, K. M. Jadhav ................................. 67

ICMM: 143 | Structural and photoluminescence of Tb3+

Ba3La2(BO3)4 ............................................................ 68 M. Peddaiah

1, P. Ankoji

2, Dr. B. Hemalatha Rudramadevi

* .............................................................................. 68

ICMM: 147 | Effect of sintering temperature on the structural and electrical parameters of coblat ferrite (CoFe2O4) ...................................................................................................................................................................... 69

Sumalatha M1, Shravan kumar Reddy S

4, Sreenath Reddy M

2, a, Suresh Sripada

3, Venkat Reddy P

1, Gopal Reddy

Ch2,Yadagiri Reddy P

2 and Raghavendra Reddy V

5 .......................................................................................... 69

ICMM: 148 | Magnetocaloric response of LSMO manganite .......................................................................... 70 G. Lalitha

1, Lanka Satyanarayana

2 K. Jayanthi

2 and Sunkara. V. Manorama

2* ................................................ 70

ICMM: 149 | Design and Development of a Low-Cost Magnetic InductionSpectroscopy (MIS) Instrumentation 71 Tushar Kanti Bera

1*, Toushik Maiti

1, Suraj Prasad Barnwal

1 ............................................................................ 71


ICMM: 151 | Understanding the Role of Structure on the Sensing Performance of Nanocrystalline WO3 Based Chemoresistive Sensors ................................................................................................................................. 72

Supraja Sankeshi, N.Snehita Chowdary, Pooja Bajaj and Manorama V Sunkara* ........................................... 72 ICMM: 153 | Title of the Paper A.C Conductivity of Cobalt Substituted in CopperFerrites by DSCM .............. 73

Ch.Venkateshwarlu1, Guguloth Vinod

2, U.Dhasharatha

2, P.Ramesh

2 and LaxmanNaik. J

* .............................. 73

ICMM 156 | Spectroscopic studies on Samarium doped Sodium-Zinc-Borate glasses .................................... 74 S. Hemalatha

1, Madhu. A

2, Madihally Nagaraja

* ........................................................................................... 74

ICMM: 157 | Electrical properties of Neodymium doped Bismuthmultifunctional materials ....................... 75 D.Ravinder

1*, G.Naveena

2 ................................................................................................................................. 75

ICMM: 159 | Effect of Copper Concentration on Ethanol Sensing Performance of Cu- stilbite Thick Film Sensor 76 Megha Mahabole

1*, Madhuri Lakhane

2, Kishori Naik

1, Pankaj Waghmare

3, VikasKutte

4, Rajendra Khairnar

1, Kashinath

Bogle1................................................................................................................................................................ 76

ICMM: 172 | Quenching effect of co-dopant Pr3+

on Red Emitting Yttrium Vanadate Phosphor Doped with Eu(III) ...................................................................................................................................................................... 77

G.Neerajarania, , J.Shankar

a, P.Raju

a, J.Anjaiah

a, B.Mamatha

a, N H Ayachit

b .................................................. 77

ICMM: 201 | Molecular Dynamics Study of Short Range Order and GlassForming Ability in FeXZr100-X Metallic Glasses ........................................................................................................................................................... 78

Anik Shrivastava1,2*

, Mahendra Khandpekar3, Satya Gowtam Dometti

1, Vivek Srivastava

1, Mahesh Mohape

1,Vinay

Deshmukh1 ........................................................................................................................................................ 78

ICMM: 207 | Characterization of Ba(NO3)2 and KNO3 and their Composite Systemsthrough SEM and DSC ... 79 1S. Shashi Devi,

2S. Narender Reddy,

3A. Sadananda Chary

3 ............................................................................. 79

ICMM: 209 | Synthesis, structure and optical properties of Indium filled CoSb3 nanomaterials .................... 80 Uday kumar M, Swetha R and Latha Kumari

* .................................................................................................. 80

ICMM: 211 | Structure and morphology (FTIR, Raman, SEM) studies of BaTiO3 ceramics for capacitor applications 81 R. Ravanamma

1,2, K. Muralidhara Reddy

2, Venkata Krishnaiah Kummara

2*, RaviNirlakalla

2 .......................... 81

ICMM: 214 | Radiation-Induced Synthesis of Nanoparticles in Aqueous Solution – A Mechanistic Approach 82 Dr. Avinash Singh

1*, Dr. Apurav Guleria, Dr. M.C. Rath ................................................................................... 82

ICMM: 215 | Surface Functionalized Porous Nanomaterials for Theranostics ................................................ 83 Chander Amgotha,*, Rompivalasa Santoshb,1, Murali Banavothb,2, Phan Chi Uyenc,1,Tang Gupingc,2 ...... 83

ICMM: 217 | Synthesis, Characterization & Studies on Polyaniline/Nanocomposites ThinFilms .................... 84 Dr.Jakeer Husain

1,Bushara anjum

2, Dr.Nagalli Raghu

3 ,Jaisheel Sagar

3* ......................................................... 84

ICMM: 218 | Analysis of p-Si/AlN/n-ZnOHeterojunction Diode using GaussianDistribution of Barrier Heights85 Chandra Prakash Gupta

1, Praveen K. Jain

2, Shashi Kant Sharma

3, Shilpi Birla

1, Sandeep Sancheti

4 ................ 85

ICMM: 220 | Study of Electrostatic Actuated MEMS Biaxial Scanning Micro-Mirrorwith Comb Structure ..... 86 Dhrubajyoti Sadhukhan, Gajendra Prasad Singh ............................................................................................ 86

ICMM: 221 | Performance of Li-ion Battery Anode: Investigating the Roleof Alternate Binders .................... 87 Supriya Pal

1,2 and Pratyay Basak

*1,2 ................................................................................................................. 87

ICMM: 227 | Synthesis, characterization and optoelectronic properties of alumina-tin oxide nanocomposite deposited on 1D carbon backbone................................................................................................................. 88

Deepti R. Kulkarni1*, Narasimha H. Ayachit2, Suresh D. Kulkarni3, Raviraj M.Kulkarni4 ................................ 88 ICMM: 228 | First-principles study of structural, elastic, electronic and optical properties of cubic perovskite LiMgF3 for novel applications .................................................................................................................................... 89

K. Ephraim Babu1*

, K. Neeraja1, D. Deenabandhu

2, V. Venkata Kumar

3,K. Bueala Kumari

3,Paulos Taddesse

4,G.

Tewodros Aregai5, B.Vikram Babu

6,K. Samatha

6 and V. Veeraiah

6 .................................................................. 89

ICMM: 231 | Factor affecting the performance of perovskite solar cell for distinct MAPI layer thickness ...... 90 Sagar Bhattarai

1, Arvind Sharma

1, Dr.T.D.Das

1* .............................................................................................. 90

ICMM: 243 | Zinc Oxide Nanostuctures prepared by modified ultrasonication-cumbustion method for optoelectronic device application .......................................................................................................................................... 91

VishwalingaPrasad B1, Daruka Prasad B

2*, Ningappa C

3 ................................................................................. 91

ICMM: 247 | FTIR, Raman and XRD analysis of graphene oxide filmsprepared by modified Hummers method92 G. Surekha

1, 2, Venkata Krishnaiah Kummara

2, Ravi Nirlakalla

2, R. Padma Suvarna

1 ...................................... 92

ICMM: 248 | 3d Printed Pcl/Ha/Go Biodegradable Polymer NanoComposites for Bone Tissue Engineering .. 93 T S C Nataraj

1 M. Meikandan

2 .......................................................................................................................... 93

ICMM: 253 | Battery Energy Storage Technologies for SustainableElectric Vehicles and Grid Applications ... 94


G. Sree Lakshmi 1

, Rubanenko Olena1, G. Divya

2, Rubanenko Oleksandr

3, ....................................................... 94

ICMM: 254 | Dielectric Properties Analysis of Paper Capacitor ...................................................................... 95 G. Sree Lakshmi


2, Rubanenko Olena

1,........................................................................ 95

ICMM: 257 | Structural, microstructural and optical property studies on sol-gelsynthesized Cr/Fe-doped CuO nanoparticles ................................................................................................................................................. 96

J. Praveen Kumar1, K.S.K.R. Chandra Sekhar2, Anantharao Paila2 and Tirupathi Patri1* .............................. 96 ICMM: 261 | Optimal Use of Power Generated by Renewable Energy Sources UsingLinear Programming Method 97

Dr. A. Jaya Laxmi*, Ch. Anjamma, R. Pradeep, A. Laxman rao ......................................................................... 97 ICMM: 264 | Influence of active layer thickness on the cut-off frequency ofa-IGZO thin film transistor ........ 98

Roshna B. Raj1*

, Shiny Nair2, Ashutosh Tripathi

3, T. Mukundan

2, Shahana T. K.

1 ............................................ 98

ICMM: 265 | Influence of Thickness on the Peformance of the Pulsed Laser Deposited CZTS Counter Electrode Based DSSC cells ....................................................................................................................................................... 99

A.C. Kasi Reddy1, K. Susmitha

1, M. Gurulakshmi

1, Thota Narayana, M. Raghavender

1, Y.P. Venkata Subbaiah

1, * 99

ICMM: 266 | Electrical Transport Study of Fe1-xCrxSi .................................................................................... 100 Sankararao Yadam

1, V. Ganesan

2 ................................................................................................................ 100

ICMM: 267 | Relaxation dynamics of Dimethylacetamide/Glycerol binary mixturesinvestigated by dielectric spectroscopy ................................................................................................................................................ 101

T. Vamshi Prasad a, V Manjula

b, K.C. James Raju

c, Y. Aparna

a*, T. Vishwam

b ............................................. 101

ICMM: 269 | Diesel generator and SOFC Fuel Cell Based Hybrid Energy System .......................................... 102 Manjul Khare

1, Manju Khare

2 ........................................................................................................................ 102

ICMM: 275 | CFD Investigation of Double Pipe Heatexchanger Using Silica Nano Fluid ............................... 103 G. NIVEDINI

1, K. PRASAD

2, Ch. SANDEEP

3, K. VENKATESWARA RAO

4* .......................................................... 103

ICMM: 277 | Dielectric breakdown studies of ZnO-B2O3 glass ceramics mixed with Ta2O5, Nb2O5 and ZrO2 . 104 A. Siva Sesha Reddy* and N. Veeraiah ........................................................................................................... 104

ICMM: 282 | Computational Studies of Distinct Anilines for ElectroopticalActivity ..................................... 105 Marla Prasanti

1, Anjali Jha

2,Ch. Ravishankar Kumar

1* ................................................................................... 105

ICMM: 285 | Sol-gel synthesis and electrochemical properties of wolframite FeNbO4 ................................ 106 D. Saritha* ...................................................................................................................................................... 106

ICMM: 291 | A Facile synthesis of α - MoO3 using Eggshell Membrane biotemplatefor Gas Sensing ........... 107 B. Geeta Rani

1, M. Sai Bhargava Reddy, K. Venkatesawara Rao

1* ................................................................. 107

ICMM: 292 | Structural,Mechanical and Elecrtical properties of NiO-GDC20 composite anodes for intermediate temperature Solid oxideFuel cells ................................................................................................................ 108

M.Narsimha Reddy1*

, P. Vijaya Bhaskar Rao2 , S.S .Bhoga

3 , Mahesh Bansod

4 V.Sreehari babu

5 .............. 108

ICMM: 302| Mapping Solution Loss-Tangent Deposition Rate of MnZn-Ferrite via Microwave-Assisted Solvothermal Processing .................................................................................................................................................... 109

Charu Singh1, R D Raland

2, Ranajit Sai

2, S A Shivashankar

2, Piyush Jaiswal

1* ................................................ 109

ICMM: 402 | Cryogenic Heat Treatment Process For D2 Steel & M2 Steel ................................................... 110 N. Prabhu Kishore .......................................................................................................................................... 110

ICMM: 403 | Electron Paramagnetic Resonance Studies Of Bi2O3-Li2O-As2O3- B2O3 Glasses Doped With Vanadium 111 Kalyani B

1,2, Navaneetha Pujari

1,2 , Potharaju Krishna

1,, J. Chinna Babu

3, .................................................... 111

Avula Edukondalu1,2*

, C P. Vardhania .............................................................................................................. 111

ICMM: 404 | Thermal and Mechanical properties of Glass ionomer cement ............................................... 112 G. Patrick

1*, Mandava Sridhar

2 and J. Kishore Babu

3 .................................................................................... 112

ICMM: 409 | Convolutional Neural Networks For Dermis Canker Detection ................................................ 113 CH. Kranthi Rekha, Dr. B.L. Prakash ............................................................................................................... 113

ICMM: 410 | Additive Manufacturing for VADs and TAHs - a Review .......................................................... 114 Anil Kumar Puppala

1, Venkateshwarlu Sonnati

2* ........................................................................................... 114

ICMM: 411 | Onset of thermovibrational convection in a Nanofluid saturated porousmedium .................. 115 R.K. Brinda* .................................................................................................................................................... 115

ICMM: 413 | Graphene reinforces Asphalt- Doubles durability of Road ...................................................... 116 B.Jyothirmai

1*, M.Haritha Kiranmai

2, K.Vagdevi

3 ........................................................................................... 116

ICMM: 421 | Effect of Li2O on electron paramagnetic resonance and opticalabsorption studies of Cu2+ ions in arsenate boro-tellurite glasses .................................................................................................................... 117

Navaneetha Pujari1,2*

, Kalyani B1,2

, Potharaju Krishna 1

, J. Chinna Babu3, C P. Vardhani

1 ............................ 117


ICMM: 425 | XRD Investigation on Heat Treatment of High Chromium White Cast Irons ............................ 118 Mbulelo Nqwase, Xiaowei Pan* ..................................................................................................................... 118

ICMM: 428 | An Experimental Study on the Ballistic Behavior of a High Strength Low Alloy Steel against High Hardness Steel Projectiles ............................................................................................................................ 119

Pradipta Kumar Jena1*

, K Siva Kumar 1 ........................................................................................................... 119

ICMM: 502 | Application and Evaluation of Properties of Ethylene AcrylicAcid Co-Polymer on Cotton Fabrics using Exhaust and Pad-Dry-Cure Finishing Methods............................................................................................. 120

Dr. Gurumurthy.B. R1*

..................................................................................................................................... 120 ICMM: 508 | Structural and optical properties of BaTiO3 Nano particles..................................................... 121

E. Janardhan1, M. Maheshwar Reddy

1, G. Raj Kumar

1 and M. Jaipal Reddy*

2............................................... 121

ICMM: 512 | Deflection and Buckling Analysis of Laminated Hybrid Composite Plates ............................... 122 D. Dhanunjaya Raju

1*, Shashank

2 .................................................................................................................. 122

ICMM: 513 | Static and Dynamic Analysis of Quasi Isotropic CompositePlates Excited by Piezoelectric Actuators with Variable ThicknessRatios ............................................................................................................................. 123

D. Dhanunjaya Raju1*

, V.V. Subba Rao2 .......................................................................................................... 123

ICMM: 516 | A Review on Formability Tests for Sheet Metal Forming Operations ...................................... 124 A.C. Sekhara Reddy

1*, S. Rajesham

2, P. Ravinder Reddy

3 .............................................................................. 124

ICMM: 523 | Polypyrrole/NiO hybrid nanocomposites: Structural, morphological, optical and electrical studies for optoelectronic device applications .............................................................................................................. 125

Hajeebaba K Inamdar1,2

, Sasikala. M3, M.V.N. Ambika Prasad

1* ................................................................... 125

ICMM: 524 | Green fabrication of Co3O4/Polypyrrole nanocomposites: Structural, Morphological and DC conductivity studies ......................................................................................................................................................... 126

Hajeebaba K Inamdar1,2

, Sasikala. M3, M.V.N. Ambika Prasad

1* ................................................................... 126

ICMM: 526 | Green Synthesis of Co3O4/Polyaniline nanocomposites: Structural, Morphological and conductivity studies ......................................................................................................................................................... 127

J. Venkatreddy1,4

, Narsappa6, Pallati Naresh

3, B Lavanya

5, M.V.N. Ambika Prasad

7, kamatam Hariprasad

2,

N.Sundraganeshan4 , Hajeebaba K Inamdar

1,* ............................................................................................... 127

ICMM: 527 | Comparative studies of self-compacting geopolymer concrete andconventional concrete subjected to corrosion and chloride ingression ................................................................................................................ 128

Krishneswar Ramineni1*, Manikanteswar Ramineni2, Mahesh Reddy Y3, Dr. BNarendra Kumar4 ............. 128 ICMM: 532| Thermal degradation study for manufacturability of Polyetheretherketone/Hydroxyapatite bone implant composite .................................................................................................................................................... 129

Sivakoti Shyam Kumar1*, Rahul Chhibber

2, S. Saptagiri

3 ................................................................................ 129

ICMM: 534 | Studies on mass attenuation coefficient, effective atomic number andelectron density of some low Z materials in the energy range 0.122 to 1.330 MeV ...................................................................................... 130

Vishwadip V. Khosepatil, Sagar S. Ghuge, Ruchita P. Solanke, Sanjay R. Dipke, Pravina P. Pawar ................ 130 ICMM: 536 | Influence of Elevated Temperature on Flextural Strength of Polysialate Composite ............... 131

S. Sapthagiri1*

, Sivakoti Shyam Kumar2 .......................................................................................................... 131

ICMM: 537 | Thermal and Elastic Properties of Mixed Alkali Tungsten Tellurite Glasses ............................. 132 Avula Edukondalu

1,2*, Salavadi Stalin

1, Ch. Srinivasu

3, Syed Rahman

1, K. Siva Kumar

1 ................................. 132

ICMM: 543 | Electrical Properties of the Ni/ polyvinyl alcohol/n-Si heterojunction with polymer interlayer133 V. Manjunath

1*, G. Manjunatha

2, and P. Ananda

2 ......................................................................................... 133

ICMM: 546 | Investigation on the microstructure and mechanical properties of W-Cu composites prepared by sintering and infiltration .............................................................................................................................. 134

U. Ravi Kiran1, G. Prabhu

2, T.K. Nandy

3 .......................................................................................................... 134

ICMM: 548 | Sliding wear characteristics of epoxy-glass composites reinforcedwith micro B4C .................. 135 Z. Shanti Kiran

*, V. Suresh Babu, V. Sri Ram, M. Kameswara Reddy .............................................................. 135

ICMM: 549 | STUDY OF IONIC CONDUCTION MECHANISM IN PEO+PVdF BASED POLYMER BLEND ELECTROLYTES COMPLEXED WITH NaClO4 ........................................................................................................................... 136

Kiran Kumar Ganta1*

, Venkata Ramana Jeedi1, K. Vijaya Kumar

2 and E. Laxmi Narsaiah

1 ............................ 136

ICMM: 602 | Investigation of Various Phases of Fe-Co-Si layerSynthesized in Si by Fe and Co Dual Ion Implantation .................................................................................................................................................................... 137

Satyabrata Singh 1, Wickramaarachchige J. Lakshantha

1, Bibhudutta Rout

1* .............................................. 137

ICMM: 604 | Experimental Study of Parameters of P-20 Steel on CNC milling machine ............................... 138


M Vishnu Vardhan1*

, Chinmay P Mohanty2, B Dhanraj

1 ................................................................................. 138

ICMM: 606 | Trace Elements of Azadiracta indica from mining area byEDXRF technique ............................ 139 S. Jyothsna

1*, G. Manjula

1 and A.S. Nageswara Rao

1 ..................................................................................... 139

ICMM: 607 | Ag/GaN hybrid nanostructures for opto-electronicapplications .............................................. 140 Kishor Upadhyaya

1*, Narasimha Ayachit

1, Shivaprasad S. M.

2 ...................................................................... 140

ICMM: 609 | Optical properties of Calcium Sodium Phosphate Glasses doped with Strontium ................... 141 Chethan

1, Sudhakar Reddy. M

2, Abhiram. J

3, Asha Rajiv

4* ............................................................................. 141

ICMM: 611 | Effect of ZnO nanoparticles on structure and magneticproperties of Li2O-B2O3: TiO2 glasses .. 142 L. Srinivasa Rao

1*, Ch. Sai Phani Kumar

2, K. Aruna Prabha

2, C.D. Naidu

1 ....................................................... 142

ICMM: 613 | Elastic properties of sodium diboro-vanadate glasses ............................................................. 143 Harikamalasree

1,2, G. Chandrashekaraiah

3, R Viswanatha

4, C Narayana Reddy

5 .......................................... 143

ICMM: 614 | Non-linear optical properties of Bi2O3-TeO2-B2O3-GeO2 glasses ............................................... 144 Salavadi Stalin

1*, Avula Edukondalu

2, M.A. Samee

3, Sair Md. Taqiullah

4, SyedRahman

1 ............................... 144

ICMM: 619 | Growth of 2-D MoS2 thin film by facile electrochemical deposition ........................................ 145 Chittatosh Pal

1, Subrata Majumder

1* ............................................................................................................. 145

ICMM: 621 | Temperature dependence of density and thermal expansion of oxide of Dysprosium in the temperature range 300 to 1000 K ..................................................................................................................................... 146

M. RangaRao1 , N. Gopi Krishna

2, S Chandra lingam

3 .................................................................................... 146

ICMM: 622 | Cyclic oxidation behaviour of Cr3C2-NiCr coatings on three different superalloys .................... 147 *

Subhash Kamal1, Srinivas Reddy

1, S.R. Pedapati

2, A.M. Abdul-Rani

2 ........................................................... 147

ICMM: 625 | Unexplored Intermetallic Nanopartilcle Catalyst towards Low-Temperature Energy Extraction from Ethanol ........................................................................................................................................................ 148

Gubbala V. Ramesh1 ....................................................................................................................................... 148

ICMM: 626 | Paper based Photo-detector using Nano-crystalline LeadSulfide Thin Film .......................... 149 Pooja M. Khanzode

1, Devidas I. Halge

1, Vijaykiran N. Narwade

1, Kiran D. More

1, Sumayya Begum

1, Sabah Taha

1,

Suhas M. Jejurikar2, Jagdish W. Dadge

3, Abhimanyu S. Rana

4 and Kashinath A. Bogle

1,* ............................. 149

ICMM: 629 | Review of Dissimilar FSW Joints ............................................................................................ 150 K.Viswanath Allamraju

*, Thota Sreehari

, Shaik Anees ................................................................................... 150

ICMM: 632 | Comparative Analysis of Sodium Hexa-titanate (Na2Ti6O13) & Sodium-Potassium Hexa-titanate (Na1.5K0.5Ti6O13) ............................................................................................................................................ 151

N Alam1$

, T Khatoon2, V S Chandel

3*$, A Azam

3, Rashmi

4 ............................................................................... 151

ICMM: 634 | Development and validation of HPLC method for the Quantitative determination of (E) -3-(3-(dimethylamino) propyl)-3- (3-(4-hydroxy-3 methoxyphenyl) acryloyl) dihydrofuran-2(3H)-one tartarate as a potential spermicide ................................................................................................................................................... 152

Rishi Ranjan Pandey1, Devendra P. Mishra

2* .................................................................................................. 152

ICMM: 701 | Design and Development of Object Detection and Separation Mechanism using Raspberry Pi153 Vinaykumar Patancheru, G. Shravan Kumar, S. Venkata Surya Prasad ........................................................ 153

ICMM: 704 | Data Logger Using Pic Micro-Controller ................................................................................... 154 T. Pranetha, V. Arun

, S. Venkata Surya Prasad .............................................................................................. 154

ICMM: 705 | A Consecutive Parameter Extraction Technique for IGBT compact model ............................... 155 N.V. Bharadwaj

1*, Dr. P. Chandrasekhar

2,Dr. M. Sivakumar .......................................................................... 155

ICMM: 706 | To Design And Develop The Realtime Watermarking Schemes Which Could Be Used In Iptv Applications .................................................................................................................................................................... 156

A. Madhuri, N. Vasudeva Reddy, S. Venkata Suryaprasad ........................................................................ 156 ICMM: 707 | DESIGN AND DEVELOPMENT OF PORTABLESPIRO METER ....................................................... 157

Kadari Anusha, V. Arun, S V S Prasad. ............................................................................................................ 157 ICMM: 708 | IOT and GPS Based Women Safety System Using ARM7 Controller ......................................... 158

V. SHARANYA1

, S. VENKATA SURYA PRASAD2

............................................................................................... 158 ICMM: 709 | Emergency System based Smart Grid ...................................................................................... 159

S. Poorna Chandra Rao1,2

, Dr.M.Sushama3 ..................................................................................................... 159

ICMM: 711 | Advancaed Traffic Signal Control Algorithms .......................................................................... 160 Nagula Kalyani, N.Vasudheva Reddy, SVS Prasad .......................................................................................... 160

ICMM: 712 | EMOTION RECOGNITION FROM FACIAL IMAGES ..................................................................... 161 Chintamadaka Ashwini, Anjaneyulu, SVS Prasad ........................................................................................... 161


ICMM: 715 | Impact of Deregulated power system market in congestionmanagement of a transmission line162 Thakur Pooja Rani

1,2, Dr. P.V. Balasubrahmanyam

3, Dr. Manjula Mane

4 .................................................... 162

ICMM: 718 | Casson Fluid Performance on Convective Flow in presence of MagneticField, Chemical Reaction and Porous Medium ........................................................................................................................................... 163

G. Aruna, M. V. Phani Kumari, R. Srinivasa Raju* ........................................................................................... 163

ICMM: 719 | Carbon footprint estimation for sustainable development ..................................................... 164 Dr. J.S. Sudarsan

1, Jyesta.W

2, Jaisal.D

2, Dr. V. Sri hari

3, Pola Vamshi

4* .......................................................... 164

ICMM: 720 | Numerical Study of unsteady Jeffrey Fluid Flow Past AVertically Inclined Plate in presence of MHD, Thermal Radiation ....................................................................................................................................... 165

M. V. Phani Kumari, G. Aruna, R. Srinivasa Raju* ........................................................................................... 165

ICMM: 722 | Wiresless Communication Tehnologies For Smart Grid (WAMS) Development ....................... 166 P. ARAVIND KUMAR, V. ARUN

, S. VENKATA SURYA PRASAD ......................................................................... 166

ICMM: 723 | Heuristic Techniques for Planning and Operation of Smart Microgrid: A Review .................... 167 Preeti

1, K. S. R. Murthy

2, Harish Pulluri

3* ........................................................................................................ 167

ICMM: 724 | Solution of Optimal Power Flow Problem Using CarTracking Optimization Algorithm ............ 168 K. Mahender

1, M. Vyshnavi

2, B. Sai Priya

3, Harish Pulluri

4* ............................................................................ 168

ICMM: 726 | Design of a New Multilevel Inverter for FACTS Application ..................................................... 169 Padmaja Voleti

1,2, Dr. Y Siva Reddy

3 .............................................................................................................. 169

ICMM: 729 | Design of a New Multilevel Inverter for Solar Energy Conversion Systems ............................. 170 Padmaja Voleti

1,2, Dr. Y Siva Reddy

3 .............................................................................................................. 170

ICMM: 732 | Formal Verification of Fault Location, Isolation and Service Restoration in Distribution Automation 171 S. Poorna Chandra Rao

1,2, Dr. M. Sushama

3 , Ch. Kavitha

4 ............................................................................. 171

ICMM: 734 | The Study of Surface Integrity on Friction Stir Welded Brass Plates ........................................ 172 P.V. Chandra Sekhara Rao

1*, B. Ramesh Chandra

2, Aluri Manoj

3 ................................................................... 172

ICMM: 735 | LiTaO3 Directional Coupler Switching Operation with Enhanced Extinction Ratio and Low Insertion Loss .................................................................................................................................................................... 173

Dr. D. Neelima Patnaik* and Dr. M.Chandra Shekhar Reddy ......................................................................... 173 ICMM: 741 | Monte Carlo study of a martensitic model: Coarsening exponents ......................................... 174

N. Shankaraiah1*

, Sanjay Puri2, and Subodh R. Shenoy

1 ................................................................................. 174

ICMM: 742 | Investigation on Natural Convective Flow of EthyleneGlycol - Fe3O4 Nanofluid in A Porous Cavity with Thermal Radiation ....................................................................................................................................... 175

Ramesh Alluguvelli1*

, Chandra Shekar Balla2, Lavanya Bandari

3, Kishan Naikoti

4 ......................................... 175

ICMM: 744 | An Arduino Based Multifrequency Voltage Controlled Oscillator (Mf-VCO) for Electrical Impedance Spectroscopy (EIS) ....................................................................................................................................... 176

Tushar Kanti Bera1*

, Suraj Prasad Barnwal1, Toushik Maiti

1 .......................................................................... 176

ICMM: 745 | A Low-Cost Electroencephalography (EEG) Instrumentation for Epileptic Seizure Detection .. 177 Tushar Kanti Bera

1* and Sunil Choudhary

1,2 ................................................................................................... 177

ICMM: 746 | Electrical Impedance Spectroscopy (EIS) of Biological Cells: A Matlab-based Simulation Study178 Tushar Kanti Bera

1*and Sampa Bera

2 ............................................................................................................. 178

ICMM: 748 | Finite Element Analysis of Heat Generation/Absorption of Viscousdissipation Effects on MHD Casson Fluid Flow Over Exponentially Acceleratedtemperature with Ramped Surface Concentration .................... 179

Sweta Matta1, Bala Siddulu Malga

2, Lakshmi Appidi

1, P.Pramod Kumar

3 ..................................................... 179

ICMM: 749 | Design and Implementation of Power Conditioning for DistributionNetworks V2G to Electric Vehicle and DC charging system ...................................................................................................................................... 180

Dr. K. Sree Latha1, Dr. M. Lakshmi Swarupa

2 .................................................................................................. 180

ICMM: 750 |Influence of Slip and Heat and Mass Transfer Effects on PeristalticMotion of Power-Law Fluid in a Proned Tube ............................................................................................................................................................ 181

K. Maruthi Prasad1, N. Subadra

2* ................................................................................................................... 181

ICMM: 753 | Soret Effect on Radiation-Convection Flow in Porous Medium with Chemical Reaction ......... 182 Dr. Sk. Nuslin Bibi

*, G. Padma ......................................................................................................................... 182

ICMM: 754 | Heat and Mass Transfer on Unsteady MHD Flow Through Aporous Medium in A Rotating Channel 183 G. Padma

*, Dr. Sk. Nuslin Bibi ......................................................................................................................... 183

ICMM: 758 | Mathematical Approach to Study Heat and Mass Transfer Effects in Transport Phenomena of a non-Newtonian Fluid .......................................................................................................................................... 184


N. Subadra1*, M. A. Srinivas

2, Sunil Dutt Purohit

3 .......................................................................................... 184

ICMM: 2103 | Facile Hydrothermal Synthesis and Enhanced electrochemical Performance of ZnCo2S4 Nanoparticles .................................................................................................................................................................... 185

M. Dakshanaa, S. Meyvel

a*, M. Silambarasan

b, M. Malarvizhi

a ...................................................................... 185

ICMM: 2108 | Assembly and Performance Study of tubular gelled valve-reglated lead acid batteries with hybrid combination of AGM-GEL-PE ....................................................................................................................... 186

S. Sasi Rekha1,2

, K. Venkateswara Rao1*

, V. Naresh2, S.K. Martha

2 ................................................................ 186

ICMM: 2113 | Synthesis, Structural and Electrochemical Properties of Ce and Ni Substituted LiMn2O4 Cathode Material for Li-ion Batteries ......................................................................................................................... 187

S.J. Margarette1,

*N. Murali

2, V. Veeraiah

1, M. Indira Devi

1 ........................................................................... 187

ICMM: 2116 | Ag Nanoparticles Decorated Porous TiO2-ZrO2 Composite as Aspatially Homogenous Surface Enhanced Raman Scattering Substrate ......................................................................................................................... 188

Hareesh. S.1, Sanu Mathew Simon

2, Prakashan V.P.

2, Twinkle Anna Jose

1, Saritha A.C.

2, Cyriac Joseph

2, Biju P.R.

2,

Unnikrishnan. N.V.2*

....................................................................................................................................... 188 ICMM: 2121 | Investigation on Nano CaTiO3 Filler Infused Plasticized PVdF-co-HFPand PEMA Blended PVdF-co-HFP / Lithium (bisperfluoroethan- esulphonyl) imide Composite Electrolyte for Lithium-ion Batteries ................. 189

N. Sangeetha1, P. Vickraman

* ......................................................................................................................... 189

ICMM: 2123 | Influence of Thermal Treatment on the Physical Properties ofBismuth Ferrite Nanoceramics for Promising Multifarious Device Applications................................................................................................. 190

Waseem Ahmad Wani1, Kannan Ramaswamy

1, Souvik Kundu

2, B. Harihara Venkataraman

1* ..................... 190

ICMM: 2125 | Silver Nanoparticles on Modified Flexible Substrates for Electronics Applications ................ 191 Gurumurthy S. C.

1*, Anju Jolly

1, Koduri Ramam

2, Shridhar Mundinamani

3, B. SNagaraja

4 ............................ 191

ICMM: 2127 | A Theoretical Study of Non Linear Optical Responses and Photo-absorption in Carbon Doped Boron Cluster ......................................................................................................................................................... 192

Shakti S Ray1*

, Rakesh K Sahoo, Sridhar Sahu1 ............................................................................................... 192

ICMM: 2129 | Ionic Liquid Modified Photoelectrode for Enhanced Flexible Dye Sensitizedsolar Cell Performance with Semi-Transparent Electrodeposited Molybdenumdisulphide Counter Electrode ......................................... 193

M. Gurulakshmi, A. Meenakshamma, M. Raghavender *

............................................................................... 193 ICMM: 2130 | Improving the Electrochemical Performance of Zn Doped LiNi0.8Co0.1Mn0.1O2 Cathode Material for Li-Ion Batteries ...................................................................................................................................................... 194

V. Kondala Rao1*

, N. Murali2, V. Veeraiah

1, K. Samatha

1 ............................................................................... 194

ICMM: 2140 | Room Temperature Magnetoelectric Properties of Fe75Ga25- (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 Laminates 195 N. Pavan Kumar

a,b, Himalay Basumatary

a, Atal Bihari Swain

c, V. Subramanian

c, A. Srinivas

*a ...................... 195

ICMM: 2144 | Molecular and Dielectric Relaxation Studies on 2-Chloroaniline with 2-Methoxyethanol binary Solutions Using Time Domain Reflectometry ............................................................................................... 196

Bhupesh G. Nemmaniwar ............................................................................................................................... 196 ICMM: 2156 | Semimetallic Nature of MTe (M = Ca, Sr, Ba) Under High Pressure........................................ 197

Lavanya Kunduru1*

, Suresh Sripada2, S. C. Rakesh Roshan

3, N. Yedukondalu

3, M. Sainath

3 .......................... 197

List of Poster Presentations ................................................................................................................................ 198

ICMM:101 | Complex permittivity and Permeability Properties Analysis of NiCuZn Ferrite-Polymer Nanocomposites for EMI Suppressor Applications .................................................................................................................. 199

P. Raju*, Ch. Kalyani, J. Shankar, J. Anjaiah, G. NeerajaRani ......................................................................... 199 ICMM:111 | Optical Properties of Samarium doped Zinc Lithium Borate Glasses ........................................ 200

Kavita Hanumar1, B G Hegde

18 and N H Ayachit

2 ........................................................................................... 200

ICMM:112 | Exploration of Lead-free Magneto-electric 0.85(Na0.49K0.9Bi0.5TiO3) – 0.15(CoFe2O4) Particulate Composite for Sensor Application ................................................................................................................................. 201

Munendrapal1, Adiraj Srinivas

2* Saket Asthana

1* ........................................................................................... 201

ICMM:115 | Magnetic and Dielectric Studies of Ba0.5Sr0.5Fe12O19 Prepared by Solid State Reaction Method 202 V. Argish

1, M.G. Shalini

1, Subasa. C. Sahoo

1,* ................................................................................................. 202


ICMM:116 | Thermo Magneto Electric Effects in Ferromagnetic Mild Steel, Cobalt and Nickel as Core Materials in Vertical set up: Comparative Study .............................................................................................................. 203

Mandava Sridhar1*

, G. Patrick2 and J. Kishore Babu

3 .................................................................................... 203

ICMM:118 | Vegetable Assisted the Green Synthesis of Gold Nanostructures and its Nonlinear Optical Properties 204 Ramya Emusani

1*, L. Jyothi

2, D. Narayana Rao

2 ............................................................................................. 204

ICMM:121 | Effect of Doping on Defect Modes of 2D Photonic Band Gap Crystals ...................................... 205 Saranya Narayanan, B.V.R Tata

* .................................................................................................................... 205

ICMM:130 | Non-linear Optical Studies of Cadmium Magnesium Oxalate Crystals Grown by Gel Method .. 206 Mangala M Sanjeevannanavar

1, Jagannatha N

1*, and Rohith P.S.

1 .............................................................. 206

ICMM:131 | Influence of Alkaline Earths on EPR spectra of Lithium Borate Glasses Doped with Fe (III) ions.207 Ashok Bhogi

1 and P. Kistaiah

2 ......................................................................................................................... 207

ICMM:136 | Luminescence Characteristics of Dy3+

Doped Borofluorophosphate Glasses for White Emission Applications ................................................................................................................................................. 208

Jismon Sebastian1, Subash Gopi

2, Sreeja E

2, Adon Jose

2, Krishnapriya T

2, P.R. Biju

2* ..................................... 208

ICMM:144 | Structural, Thermal and Optical Properties of 50Bi2O3-15MO-20B2O3-15Li2O (where M= Zn, Cd, Ba and Pb) Glasses................................................................................................................................................... 209

aJ. Bhemarajam,

bG. Upender,

aM. Prasad

* ..................................................................................................... 209

ICMM:146 | Synthesis, Structural and Magnetic Properties of Multifunctional Spinel Ferrite Nanoparticles for Data Storage Applications .................................................................................................................................... 210

Shubhada Thorat*, Pooja Khedekar, Deepali Andhare, Supriya Patade, K. M. Jadhav .................................. 210 ICMM:154 | Structural and Optical Properties of ZnS/Graphene Nanocomposite Films Formed by Homemade Spray Pyrolysis Unit ............................................................................................................................................... 211

V.H.Choudapur1*

, S.B.Kapatkar1, N.H.Ayachit

2 ............................................................................................... 211

ICMM:161 | Photoluminescence in KMgAlF6 ............................................................................................... 212 Vartika S. Singh

1*, P. D. Belsare

2, S. V. Moharil

1 .......................................................................................... 212

ICMM:162 | Rare Earth Based Insulating Nano Crystals for Plasma Display Panels ...................................... 213 P. Chandar Rao

1, Vishnu V. Jaiswal

2, G. Ravinder

1, C. J. Sreelatha

1, D. Haranath

2, ........................................ 213

ICMM:165 | Low Temperature Synthesis, Structural, Cation Distribution and Magnetic Studies of Cobalt Ferrite Nanoparticles .............................................................................................................................................. 214

Farha Naaz, Aqsa Samreen, Shaikh Saima Anam, Shaikh Zeba Anjum, K.M. Jadhav ..................................... 214 ICMM:167 | Magnetic and Dielectric properties of Sm and Bi Substituted Gadolinium Iron Garnet ............ 215

Aakansha, S.Ravi* ........................................................................................................................................... 215

ICMM:168 | A Comprehensive Device Modelling Of Solid-State Dye Sensitized Solar Cell by MATLAB ........ 216 Omhari Dubey

1,a, Sarvesh K Gupta

2,b and Abhishek K Gupta

2,c ....................................................................... 216

ICMM:169 | Solid State Route Preparation, Characterization and Electrical Properties of NiCuZnFe2O4/Paraformaldehyde Nanocomposites ...................................................................................... 217

P. Raju*, S. Rajesham, J. Shankar, J. Anjaiah, G. Neeraja Rani ....................................................................... 217 ICMM:170 | Effect of Cr

3+ Substitution on Electromagnetic Properties of Nanocrystalline MgCuMn Ferrites

Synthesized by Sol-Gel Method. .................................................................................................................. 218 T. Ramesh

1*, D. Bhavya

2, K. Ruchitha Devi

2 and S. Senthil Kumar

3 ................................................................. 218

ICMM:171 | Theoretical Study on Structural and Optical Properties of PEO & NH4SCN based Solid Polymer Electrolyte .................................................................................................................................................................... 219

Vinay Shuklaa, Abhishek Kumar Gupta*

b, Sarvesh Kumar Gupta .................................................................. 219

ICMM:205 | Dielectric Relaxation Studies of Aqueous Diethylamine from 10MHz To 50GHz Using A Time Domain Reflectometry .............................................................................................................................................. 220

A.R. Deshmukh1 and A.C. Kumbharkhane

1* .................................................................................................... 220

ICMM:206 | Dielectric, Spectral studies of gel grown Mg2+

Doped Copper Cadmium Oxalate Single Crystal 221 Rohith P S

1, Dr. Jagannatha N

1*, Pradeepkumar K V

1 ..................................................................................... 221

ICMM:208 | Novel In-situ Synthesis of 1D ZnWO4 Nanorods Decorated 2D g-C3N4 Nanosheets For Enhanced Visible-Light-Driven Photocatalysis ......................................................................................................................... 222

Ravindranadh Koutavarapu1, Bathula Babu

1, Ch. Venkata Reddy

1, Kisoo Yoo

1, #, Migyung Cho

2, #, Jaesool Shim

1, * 222

ICMM:213 | Resistive Switching Characteristics of Pt/TiO2/Al Structure under Optical Illumination ........... 223 Kiran D. More

1,2, Devidas I. Halge

1, Pooja M. Khanzode


1, Sumayya Begum

1, Shivaji G.

Munde1, Jagdish W. Dadge



1,* ................................................ 223


ICMM:216 | Application of Synthesized Tetragonal Structured Zirconium Oxide Nanoparticle on Victoria Blue B and Acridine Orange Dye .................................................................................................................................... 224

Santhosh A.M1, Yogendra K

1, Mahadevan K.M

2, Madhusudhana N

1 ............................................................. 224

ICMM:222 | Enhanced Electrical Properties of Sr(Bi3.9La0.1)(Ti3.975Zr0.025)O15 Ceramic with the Doping of Nd 225 B. Mamatha

1*, K. Ashok

2, G. Neeraja Rani

1 and A. R. James

3 ........................................................................ 225

ICMM:224 | Growth, Optical and Thermal Properties on Co2+

Doped Copper Tartrate Single Crystals at Different Environmental Condition. ............................................................................................................................ 226

Pradeepkumar K V1, Jagannatha N

1*, Rohith P S

1........................................................................................... 226

ICMM:226 | Dielectric Relaxation Studies on Molecular Interaction in Binary Mixtures of Glycerol with n-Methyl-2-Pyrrolidone .................................................................................................................................................. 227

V. Manjulaa, b

, T. Vamshi Prasadc, K. Balakrishna

a, K.C. James Raju

d, T Vishwam

a* ....................................... 227

ICMM:230 | Thermal Properties of Pr2O3 dopedlead boro-tellurite glasses ................................................. 228 Sangeeta B. Kolavekar

1 and N. H. Ayachit

2* ................................................................................................... 228

ICMM:234 | The effect of cation-size variance on the relaxor nature and insulating character of the lead free Rb substituted Na0.5Bi0.5TiO3 ............................................................................................................................. 229

Krishnarjun Banerjee, Saket Asthana ............................................................................................................. 229 ICMM:235 | Optical Properties and Structural Studies of Eu

3+ ions doped Lead-Borate-Tellurite Glasses .... 230

Raju B. Katti1, V.K Pattar

2, K.R Sardar Pasha

3, N. Hanumantha Raju

4, V.C Veeranna Gowda

4* ..................... 230

ICMM:236 | Well-dispersed Amorphous carbon Nanotube-Alumina Nanocomposite in Engine Oil for Nanofluid with Improved Thermal Conductivity .................................................................................................................. 231

Sudipta Kumar Sarkar1, Arunava Jha

2, Kalyan Kumar Chattopadhyay

1,2* ...................................................... 231

ICMM:238 | Synthesis of garnet structured Ce doped Li7La3Zr2O12 electrolyte by solid state reaction method232 Anubha sodhiya

*, Arun kumar singh, Ranveer kumar .................................................................................... 232

ICMM:239 |Microwave Assisted Green Synthesis of Silver Nanoparticles using Punica Granatum Peel Extract: Evaluation of their Catalytic and Antibacterial activity ................................................................................ 233

Ruqya Banu1, 2

, G.Bhagavanth Reddy2, K Girija Mangatayaru

2*, ................................................................... 233

ICMM:241 | Variable Photoluminescence of Nano Zirconia Quantum dots by Hydrothermal Synthesis ...... 234 G. Deepthi Reddy

1, M. Noorjahan

1* and A. Ratnamala

2 ................................................................................ 234

ICMM:242 | Impact of Phytosynthetic Nanomagnetite Particles on Elusine Coracana (Finger millet) Hydroponic Seed Germination ................................................................................................................................................ 235

M. Hasheena1, A. Ratnamala*

1, G. Deepthi Reddy

2, M. Noorjahan

2 .............................................................. 235

ICMM:244 | Thermoacoustic Investigations on Nanofluids ......................................................................... 236 Swapnali P. Rajmane

1, Pratiksha D. Donolikar

1, V.A. Sawant

2, S. B. Sadale

2* ................................................ 236

ICMM:249 | Synthesis and Magnetic Properties of Nanostructured Ni1-xZnxFe2O4(x = 0.4, 0.5 and 0.6) ....... 237 Bhumireddi Sattibabu

1*, T. Durga Rao

1, A. K. Bhatnagar

2, S.Rayaprol

3, V.Siruguri

3 and D. Das

2 ................... 237

ICMM:250 | Study of Microstructure and Thermal Properties of PbTiO3 based Glass Ceramics ................... 238 J. Shankar

1*, A. Shiva Kumar

1, J. Anjaiah

1, P.Raju

1, G. Neeraja Rani

1 and V.K. Deshpande

2 ........................... 238

ICMM:252 | Radionuclide Sorption onto Nanoiron Oxy Hydroxide: Synthesis and Application to Natural Waters 239 Dasari Vasundara, Susarla Siva kumar, Thaticharla Kaleswararao ................................................................ 239 and Duvvuri Suryakala* .................................................................................................................................. 239

ICMM:255 | Research Processes of Oil and Paper Insulation of High-Voltage Equipment during Operation 240 G. Sree Lakshmi


2, Rubanenko Olena

1, Hunko Iryna

2 ................................................ 240

ICMM:259 | An Improved Active Frequency Drift Islanding Detection Using Fuzzy Logic Technique ............ 241 Dr. A. Jaya Laxmi*, R. Pradeep, Ch. Anjamma, Etneni Rama Krishna ............................................................ 241

ICMM:262 | CNT-TiO2 Coated Silicon PV Cell for improved conversion efficiency ........................................ 242 Mohammed Fayaz

1, K.V. Sharma

2, P.H.V. Shesha Talpa Sai

3 ......................................................................... 242

ICMM:263 | A Study Of Dielectric Relaxation Properties of ZnFe2-xBixO4 nano Ferrite Particles Synthesized by Sol-gel Combustion Method .................................................................................................................................... 243

N Suresh Kumar .............................................................................................................................................. 243 ICMM:268 | Facile synthesis of MnWO4 nanostructure for supercapacitor application ............................... 244

Pratiksha D. Donolikar1, Sagar D. Jadhav

1, Deepak P. Dubal

2, Deepak R. Patil

3*, Shivaji B. Sadale

4* ............. 244

ICMM:270 | Phase Transitions in Dense Thermo-responsive Microgel Suspensions: A Monty Carlo Study . 245 Sivaram Vintha, Ranajay Datta, B.V.R. Tata

* ................................................................................................. 245

ICMM:278 | Synthesis and characterization of ZnO-CuO nanocomposites .................................................. 246


K. Kavitha*, Dr. T. Subba Rao, Dr. R. Padma Suvarna .................................................................................... 246 ICMM:284 | Enhanced Thermal Stability Regime in K0.5Na0.5NbO3-Ta2O5-CO3O4 for Multilayer Ceramic Capacitor Applications ................................................................................................................................................. 247

Cilaveni Goutham, Abhinav Kumar, Saket Asthana1*

..................................................................................... 247 ICMM:286 | Surfactant Assisted Synthesis of Ruthenium Oxide Nanoparticles for High Performance Supercapacitors .................................................................................................................................................................... 248

N. Varalakshmi a, A. Lakshmi Narayana, Yejun Qiub

b, O.M. Hussain

c, N.Y. Sreedhar

a* ................................. 248

ICMM:287 | The Impact of Various Concentrations of Dopant on The Properties of Mn Doped Zns Quantum Dots in Presence of Thourea as Capping Agent ........................................................................................................ 249

Bijimol. D, Mamatha Susan Punnoose, Beena Mathew* ............................................................................... 249 ICMM:288 | Green Synthesis, Characterization and Catalytic property of Gold Nanoparticles using Biophytum sensitivum Leaf extract ................................................................................................................................ 250

Mamatha Susan Punnoose, Bijimol D, Beena Mathew* ................................................................................. 250

ICMM:289 | Structural and Thermal Properties of Ni-doped Molybdenum Disulfide (MoS2) Synthesized via a One-Step Hydrothermal Method ................................................................................................................................. 251

Niharika Chourasiya1*

, Arun Kumar Singh, Aksh kumar Verma and Ashish Verma ........................................ 251 ICMM:290 | Thermoelectric Properties of Topological Semimetal LiAuTe ................................................... 252

Anita Yadav1, Shailesh Kumar2,3, Manoharan Muruganathan4, Rakesh Kumar1 ........................................ 252 ICMM:294 | Biogenic Fabrication of Palladium Nanoparticles and its Applications ..................................... 253

K. Sandhya1, K. Girija Mangatayaru

1* ............................................................................................................ 253

ICMM:295 | Spin Transport Propertiesof CoFeCrGa/GaAs/CoFeCrGa through First Principles Calculations . 254 P. Rambabu

1,2*, V. Kanchana

1 ......................................................................................................................... 254

ICMM:297 | Structural, Morphological, Optical, Luminescence and Gas Sensing Characterization of Pure and Ce Doped SnO2 Nanoparticles Synthesised by Hydrothermal Method .............................................................. 255

D. Sunil gavaskar1, Y. Vijayakumar

2, P. Nagaraju

2, M.V. Ramana Reddy

1 ..................................................... 255

ICMM:301 | Improved Insulating and Dielectric Properties in Ho and Sc Doped BiFeO3 .............................. 256 T Durga Rao

1,2*, B. Sattibabu

1, Saket Asthana

2# ............................................................................................. 256

ICMM:401 | Investigation of the Structure, Dielectric and Ferroelectric Properties of Lithium Doped Lead Free Sodium Potassium Niobate Ceramic ......................................................................................................................... 257

A. Rashid and Dr N. V. Giridharan .................................................................................................................. 257 ICMM:405 | Spectroscopy Studies in Predicting the Extent of Damage in Portlandcement at Elevated Temperatures .................................................................................................................................................................... 258

Nari Vivek 1*

, B. Mahesh Reddy 1, B Shiva Kumar

1, K Ankush

1 ....................................................................... 258

ICMM:407 | Thermal Properties of Hybrid Natural Fiber Reinforced PolymerMatrix Composites with SiC as Filler 259 Devaiah Malkapuram

*, Murali Krishna, N.N. Denesh, G. Sai Siddharth Reddy,

J. Nithien ............................. 259

ICMM:408 | Mechanical Properties of Hybrid Natural Fiber Reinforced Epoxy Matrix Composites with SiC as Filler .................................................................................................................................................................... 260

Devaiah Malkapuram*, Murali krishna, N. N. Denesh, G. Sai Siddharth Reddy .............................................. 260

ICMM:412 |A Novel Lanthanum and Bismuth Based Self-Cleaning Nanocomposite for Organic Pollutants . 261 Thomas Abraham, Kannan. S, Beena Mathew* ............................................................................................. 261

ICMM:422 | Gamma Ray Interaction Studies of Some of Nucleosides in the Energy Range 122 to 1330 KeV262 Pradnya L. Agale, Pooja M. Sontakke, Chaitali V. More, Dr. Pravina P. Pawar .............................................. 262

ICMM:424 | Preparation and Characterization of Cobalt Ferrite Nanoparticles for Hyperthermia Applications263 Aqsa Samreen, Farha Naaz, Shaikh Saima Anam, Shaikh Zeba Anjum, K.M. Jadhav ..................................... 263

ICMM: 426 | An Overview on White Cast Irons and High Chromium White Cast Irons ................................ 264 Mbulelo Nqwase, Xiaowei Pan* ..................................................................................................................... 264

ICMM: 427 | Microstructural Investigation on Heat Treatment of Hypoeutectic High Chromium White Cast Iron 265 Mbulelo Nqwase, Xiaowei Pan* ..................................................................................................................... 265

ICMM:429 | Analysis of Camshaft for Straight Line Six Cylinder’s IC Engine ................................................. 266 D. Revathi

1, Dr. N. Sujan Rao

2, Dr. TVSMR Bhushan

3* .................................................................................... 266

ICMM:430 | Finite Element Crash Simulation Of an Automobile by using LS-DYNA ..................................... 267 Naikodi Chaitanya

1 and M.N.V. Ramesh

2* ...................................................................................................... 267

ICMM:432 | X-ray Attenuation Coefficient of Niobium compound Using Synchrotron Radiation Source in the Energy Range 18.913 to 19.668 keV ......................................................................................................................... 268


G. Manjula1*

, Bunty Rani Roy1, Ashok Kumar Yadav

2, A.S. Nageswara Rao

1 ................................................. 268

ICMM:501 | Biological Evaluation of An Novel in-Situ Polymerised Polyaniline Cerium Vanadate Nanocomposite and its Application in Environmental Remediation ............................................................................................. 269

Vinisha Valsaraj P1*

, Anet2 .............................................................................................................................. 269

ICMM:503 | Effect of Sm3+

ions on Structural and Thermal Properties of PVA+PEG Nano Polymer Films ..... 270 V.Vinay Krishna

1, J.Suresh Krishna

2, M. Hemalatha

2, D. Siva Raju

2 and Ch. Linga Raju

2* .............................. 270

ICMM:504 | Synthesis and Property Analysisof Poly-Acryl-Amide (PAM)/Poly-Vinyl-Alcohol (PVA) Blend Thin Films .................................................................................................................................................................... 271

Rashmi S. Adoor1,2*

,Sushant A. Haladkar3, Susheelkumar G. Adoor

4, Narasimha H. Ayachit

5. ..................... 271

ICMM:505 | Effect of Phenol Red on the Optical Properties of Biodegradable Polymer Composite Films .... 272 Ismayil

1*, Swathi

1 ............................................................................................................................................ 272

ICMM:511 | Ferroelectric Polymer Composite as Radio Absorbing Material (RAM) for 5th

Generation Stealth Fighter Aircraft ........................................................................................................................................................ 273

Ayush Sharma1, Sudheendra. S. Kulkarni

2,* and Udaykumar.V. Khadke

3 ....................................................... 273

ICMM:514 | Effect of Copper Oxide nanofillers on PVA/PVP Blend ............................................................. 274 Rajesh K

1, Vincent Crasta

1** , Rithin Kumar N B

2, Gananatha Shetty B

1 ......................................................... 274

ICMM:515 | Synthesis and Characterization of Donor-Acceptor-Donor Type Polymer for NLO Applications275 *K. Balakrishna

a, R. Sampath

a, T. Vishwam

a, M. P. Joshi

b, S. Raj Mohan

b ...................................................... 275

ICMM:518 | Advancement in Structural, Morphological and Dielectric Studies of PVA filled TiO2 and ZnO nanocomposites .......................................................................................................................................... 276

Vincent Crasta1*

, B Gananatha Shetty1, Rajesh K

1, ......................................................................................... 276

ICMM:519 | Effect of Microcrystalline Cellulose Reinforcement in DOP Plasticized Melt-spun PHB Fibers .. 277 Moumita Mistri

1, 2*, Pavan Manvi

3, Bernd Michael Liebeck

4 Thomas Gries

3, and Bhanu Bhusan Khatua

2 .... 277

ICMM:520 | Annealing Effect on Magneto-Transport Property and Stress Induced Dynamic Elastic Moduli on a Co-Ni-Al FSMA ....................................................................................................................................................... 278

B. Rajini Kanth1,2*

, Md Sarowar Hossain2, and P. K. Mukhopadhyay

2 ............................................................ 278

ICMM:521 | Rheological Studies on Homogeneous and Inhomogeneous Core Dense Colloidal PNIPAM Microgels 279 M.V. Saisavadas

1, R.G. Joshi

2, M. Praveen Kumar

1, Surajit Dhara

1, B.V.R.Tata

1* ........................................... 279

ICMM:522 | Studies on Electrospraying Synthesis and mechanism of sol-gel Derived TiO2-ZrO2-Poly vinylpyrrolidone Composites as Bactericidal Self-cleaning Coatings ....................................................................................... 280

Sanu Mathew Simon1, Prakashan V P

1, Gejo George

1,2, Anoop Chandran

3, Sajna M S

1,4, Saritha A C

1, Biju P R

1, Cyriac

Joseph1, Unnikrishnan N V

1* ........................................................................................................................... 280

ICMM:529 | Finite Element Analysis on Fly Wheel Cup Manufactured with Polymer Matrix Composite (PMC) Reinforced with Fly Ash ............................................................................................................................... 281

*J Nithin Kumar,

K. Praveen Kumar, G Ravi Shankar, P Chucharita ................................................................ 281

ICMM:531 | NiO/Polyaniline Nanocomposite in View of Energy Storage and Electrochemical H2O2 Sensing Application .................................................................................................................................................................... 282

Saraswathi Kailasa1, M. Sai Bhargava Reddy B. Geeta Rani

1, Shubham Sharma

2, K. Venkateswara Rao*

1 .. 282

ICMM:538 | Laser Applications for the Optical Exploration of the Dy3+

Doped Li2O-CaF2-Al2O3- B2O3- SiO2 Glasses 283 D. Deenabandhu

1,K. Neeraja

2, K. Ephraim Babu

2*, , V. Venkata Kumar

3, K. Bueala Kumari

3, K. Samatha

4 and V.

Veeraiah4 ........................................................................................................................................................ 283

ICMM:539 | Iso-conversional Kinetics Study of Xanthan Gum Bio Polymer ................................................ 284 A.M.Shaker1

1, T.Lilly Shanker Rao

2**, T.Shanker Rao

3, K.Venkataraman

4 .................................................... 284

ICMM:545 | Studies on Mass Attenuation Coefficient, Effective Atomic Number and Electron Density of Some Biomolecules in the Energy Range 0.122 To 1.330 Mev ............................................................................... 285

Khan Faizan*, Shaikh Junaid, Farha Naaz, Aqsa Samreen, Shaikh Saima Anam, Shaikh Zeba Anjum, Pravina P.Pawar. ........................................................................................................................................................................ 285

ICMM:603 | ТiО2/Activated Carbon Composites: Synthesis, Structure and Adsorption Properties .............. 286 Anzhela Kukh*, Iryna Ivanenko ....................................................................................................................... 286

ICMM:608 | Room Temperature Ammonia Gas Sensing Properties of Nickel Oxide Thin Films ................... 287 K. GangaReddy

*, M.V.Ramana Reddy ............................................................................................................ 287

ICMM:616 | Structural Characterization of Layered Tin Mono-selenide Crystals Doped with Copper Grown by DVT Technique .................................................................................................................................................... 288

S. M. Bharthaniya1, K. R. Chaudhari

2, Ajay M. Agarwal

3*,G. K. Solanki

4 ........................................................ 288


ICMM:620 | The Effct of Polygonal Pin Profiles on Temperature Profile of Friction Stir Welded Thick Dissimiar Materials ..................................................................................................................................................... 289

M.Mounika1, R.Venkateswara Rao

2* Y. Anuradha

2, Dr. G. Amarender Rao

3 ................................................. 289

ICMM:624 | Simple, Rapid and Solvent Free Synthesis of β – Nitrostyrenes from α, β-Unsaturated Carboxylic Acids In Presence of Poly Ethylene Glycol Supported Metal Nitrates ........................................................................ 290

K. Ramesh1 ...................................................................................................................................................... 290

ICMM:627 | Study of Transport and Magnetoelectric Properties of BiFeO3 Thin Films ................................ 291 Pratheek

1, B G Hegde

1* and N H Ayachit

2 ....................................................................................................... 291

ICMM:631 | Effect of V2O5 on the Properties of Lithium Bismuth Borate Glasses ........................................ 292 V. D. Raut

1, A.V. Deshpande

2 *, N. S. Satpute

3* ............................................................................................... 292

ICMM:633 | Utilization of Spray Coated Nano-crystalline Cadmium Sulfide Thin Film for Photo-Detector Application .................................................................................................................................................................... 293

Devidas I. Halge1, Pooja M. Khanzode


1, Sumayya Begum

1, Shivaji G. Munde

1,2, Kiran D.

More1, Janez Kovac

3, Jagdish W. Dadge



1,* ............................ 293

ICMM:635 | Efficient H2 Production by H2S Splitting Using CNT Blended Ce Doped TiO2 Thin Film Photocatalyst on Perspex Substrate ........................................................................................................................................ 294

M. Anthony Raja1, Preethi V

1*, Yash Pal

1, Naresh Nalajala

2, Chinnakonda S. Gopinath

2 ............................... 294

ICMM:636 | Photocatalytic Hydrogen Production from H2S Using Nanostructured CNT Blended CdZnS/Fe2O3 Thin Film on Glass Substrate ................................................................................................................................ 295

M. Anthony Raja1, Preethi V

1*, Yash Pal

1, Naresh Nalajala

2, Chinnakonda S. Gopinath

2 ............................... 295

ICMM:721 | Synthesis and Characterization of PbTiO3: Anthracene (C14H10) Multifunctional Ferrites Using by Solid State Reaction Method ............................................................................................................................... 296

Potharaju Krishna1, DayakarThatikayala

2, K.Shanthi

1 and C.P. Vardhani

1* ................................................... 296

ICMM:731 | Induction Motor Desgin Analysis for Electric Vehicle Application ............................................ 297 N.V.Bharadwaj

1*, Dr.P.Chandrasekhar

2,Dr.M.Sivakumar .............................................................................. 297

ICMM:737 | Design of Polymeric Type Spacer in a Single Phase Gas Insulated Busduct for Reduction of Electric Field Stress ........................................................................................................................................................... 298

K.Sushma1, G.V.Nagesh Kumar

1*, M.Aruna Bharathi

2and P.V.S.Sobhan

3...................................................... 298

ICMM:739 | Identification of Linear and Non Linear Curve Fitting Models Using Particle Swarm Optimization Algorithm .................................................................................................................................................... 299

P.Syamala Rao1, Dr.G.Parthasaradhi Varma

2, Ch.Durga Prasad

3 .................................................................. 299

ICMM:740 | Effect of Lithium Fraction on Glass Transition Temperature Tg And Ionic Conductivity σ of Lithium Borosilicotitanate Glasses ............................................................................................................................ 300

N.S. Satpute1, A.V. Deshpande

2* and V. D. Raut

3** ........................................................................................ 300

ICMM:755 | Intelligent Controllers for Grid Integrated RES System and their Challenges: A Brief Review ... 301 Sainadh Singh Kshatri

1, Dr. Javed Dhillon

1, Dr. M Aruna Bharathi

2 ............................................................... 301

ICMM:756 | Development of Nanostructure LiMn1.5Cu 0.5O4 usingMicrowave assisted Sol-gel Method ...... 302 M. Aruna Bharathi

1,*, R.S. Raju

1, K. Venkateswara Rao

2, M. Sushama

2, V. Subhashini

2................................ 302

ICMM:757 | A New Approach to the Construction of Transition Matrix with Application to Control Systems303 P. Sailaja

1, K.V. K. Viswanadh

2 and K. N. Murty*

3 .......................................................................................... 303

ICMM:2104 | Synthesis And Characterisation Of Iron Oxide Nanoparticles Using Egg-White ...................... 304 G. Srikanth

1, N. Jayarambabu


2** ............................................................................... 304

ICMM:2105 | Evolution of magnetic properties of Nano Ca-hexaferrites with Al substitution in hydrothermal synthesis ...................................................................................................................................................... 305

Ch. Mamatha1*

, P. Subhashini2, M. Krishnaiah

2 ............................................................................................. 305

ICMM:2111 | Optical and Structural Studies of B2O3-ZnO-Na2O-Li2O Glasses Containing Ag Nano Particles 306 A. Ashok, J. Bhemarajam, G. Upender, M. Prasad* ........................................................................................ 306

ICMM:2114 | Studies on Dielectric Properties of Polymer Blend of PANI with PVDF/KDP Composites ........ 307 Bharati Basavaraj

1,*, Hajeebaba K Inamdar

1,2 and Basavaraja Sannakki

1,* ................................................... 307

ICMM:2115 | Electrical Property Study on Polyaniline/Cadmium Oxidecomposites .................................... 308 Narsappa

1, Hajeebaba K Inamdar

2, Sasikala. M

3, M.V.N. Ambika Prasad

4* .................................................. 308

ICMM:2126 | A Density Functional Study of Hydrogen Storage in Li Decorated C20 Fullerene ...................... 309 Rakesh K. Sahoo

1*, Shakti S. Ray

1 Sridhar Sahu

1 ............................................................................................. 309


ICMM:2128 | High Performance Er, Yb - Doped Ceo2 Bifunctional Upconversion Particles for Dye Sensitized Solar Cells with Platinum Free SnS Counterelectrode ................................................................................................... 310

A. Meenakshamma1, M. Gurulakshmi

1, S. Narendra Babu

2, M. Raghavender

1, * ........................................... 310

ICMM:2131 | Microstructural and Electrical Properties of Mg substituted Li4Ti5O12 Synthesized by Ceramic Method .................................................................................................................................................................... 311

B. Vikram Babu1*

, M. Sushma Reddi2, G. Chandana

1, A. Ramamkrishna

1, Tulu Wegayehu

1, K. Samatha

1, V. Veeraiah

1

........................................................................................................................................................................ 311 ICMM:2132 | Field Stress Control of a Post Type Insulating Spacer with Functionally Graded Material in a Gas Insulated Busduct ........................................................................................................................................ 312

N. Chaitanya Dathu1, G.V. Nagesh Kumar

1*, M. Aruna Bharathi

2 and B. Sravan Kumar

3 .............................. 312

ICMM:2133 | Insulation Integrity of Disk Type Spacer with U- type Graded Material in a Single Phase Gas Insulated Busduct ........................................................................................................................................................ 313

K.Sushma1, G.V.Nagesh Kumar

1*, M.Aruna Bharathi

2and Akanksha Mishra

3 ............................................... 313

ICMM:2135 | Structural Properties of Erbium (Er3+

) Substituted Cu-Cd Ferrite Nano Particles .................... 314 G. Vinod

1, J. Laxman Naik

1, K. Rajashekar

2, B. Naresh

1, B. Babu Rao

1 and D. Ravinder

1................................ 314

ICMM:2141 | Application of Magnetic Nanoparticles in Water Purification ................................................ 315 Shaikh Saima Anam, Vishwadeep Khosepatil, Dr. K.M. Jadhav ...................................................................... 315

ICMM:2145 | Investigation of the TiO2- Multi-wall carbon nanotubes (MWCNTs) composite as an effective photoanode in the dye sensitized solar cell ................................................................................................. 316

Sai Kumar Arla1, Hussen Maseed

2, Siva Sankar Sana

1, Venkataramana Badineni

1, Vijaya Kumar Naidu Boya

1,* 316

ICMM:2146 | Effect of Binder Material in Preparation of Carbon Free TiO2 as Photo Anode in Dye Sensitized Solar Cells ............................................................................................................................................................. 317

Sai Kumar Arla 1, Siva Sankar Sana

1, Venkataramana Badineni

1, Hussen Maseed

2, Vijaya Kumar Naidu Boya

1,* 317

ICMM:2147 | Modulational Instability in Diffusive Semiconductor Plasmas: Effect of Streaming Colloids... 318 P.S.Malviya

1*, N.Yadav

2 ................................................................................................................................ 318

ICMM:2149 | Synthesis and Characterization of Zirconia Nanoparticles ...................................................... 319 J. Vinay, D. Rakesh, CH. Shilpa Chakra* .......................................................................................................... 319

ICMM:2150 | Morphology Tailored 1-D Zn Nanorods for Supercapacitor Application ................................. 320 K. Jagadeeshwar Reddy

1, B. Geeta Rani

1, M. Sai Bhargava Reddy


1* ........................ 320

ICMM:2151 | Synthesis and Characterization of nano Sio2 Nanoparticles ................................................... 321 Pavar Saikumar, D. Rakesh, CH. Shilpa Chakra* ............................................................................................. 321

ICMM:2152 | Antioxidative copper nanoparticles for conductive inks ........................................................ 322 Gangarapu Akhila, D. Rakesh, Dr. Ch. Shilpa Chakra* .................................................................................... 322

ICMM:2155 | Enhanced Electrical and Optical properties of Al doped and ZnO nanoparticles for Optoelectronic Application: Eco-friendly Green Route ......................................................................................................... 323

Veena Ragupathi1, Manukonda Madhu babu

2, Puspamitra Panigrahi

1 and N. Ganapathi Subramaniam*

3 . 323

ICMM:2157 | Synthesis and Development of Silver nanoparticles decorated Polymer Films for Room Temperature Sensing ........................................................................................................................................................ 324

Anju Jolly1, Saraswati Kailasa

2*, Dr. Gurumurthy S C

1 .................................................................................... 324

ICMM:2159 | Structural and Electrical Properties of PANI+SWCNT Nanocomposites Prepared by Chemical Mixing Method ........................................................................................................................................................ 325

P. Raju1, A. Geetha

2, S. Uday Kumar

2, G. Neeraja Rani

1* ............................................................................... 325


Programme Schedule

Day 1: December 19, 2019 (Thursday)

Time (IST) Programme Details

09: 00-

10:00 Registration (Block-I)

Inaugural Ceremony, Plenary and Invited Talks (Venue: Block-IV, Auditorium: NB 301)

10.00-

11.00 Inaugural Ceremony

11.00-

11.15 High Tea

11.15-

11.45 Keynote Address: Dr. Vikas Kumar

Former Director, DRDO-DMRL, Hyderabad 11.45-

13.00 Plenary Talk-1

Dr. Ajit R. Kulkarni

Institute Chair Professor

IIT -Bombay, INDIA

Title: Safer Multifunctional Sunscreen Active

Ingredient via Native Atomic Defects

Promotion – Concept to Commerce

Plenary Talk-2

Dr. N. Veeraiah

Professor, Acharya Nagarjuna University, India

Title: Influence of noble metal ions on electrical

and optical characteristics of non-conventional

animonate glass ceramics- Possible materials for

NLO and piezo-optical devices

Plenary Talk-3

Dr. James Raju

Professor, CASEST, School of

Physics, University of Hyderabad

Title: Microwave Resonators with

Bulk and Thin Film Solids

13.00-

14.00 Lunch Break

14.00-

15.30 Oral Presentations

Venue 1: Block I,

3rd Floor, Hall: 310

ICMM-149, 253, 254, 261,

269, 428, 701, 704, 705

Oral Presentations

Venue 2: Block I,

2nd Floor, Hall: 209

ICMM-109, 113, 119, 122,

148, 153, 302, 546, 2140

Oral Presentations

Venue 3: Block I,


ICMM-718, 720, 742, 748,

750, 753, 754

Oral presentations

Venue 4: Block III,

3rd Floor, Hall: N308

Invited Talk-1

Dr. Ganesh Kumar Mani,

Tokai University, Japan

Title: Mosquito Bite Inspired Microneedle

Technology for Health care Applications

ICMM-127, 151, 209, 214, 215, 243, 257,

2103 15.30-

15.45 Refreshment Break

15.45-

17.00 Poster Presentations ICMM-121, 154, 165, 169, 171, 208, 216, 239, 241, 242, 244, 252, 255, 259, 262, 263, 270, 278, 287, 288, 294, 297,

408, 412, 424, 426, 427, 429, 430, 501,511, 514,515, 518, 529, 549, 603, 620, 624, 721, 731, 737, 739, 755, 756, 2104, 2114, 2115, 2126,

2132, 2133, 2135, 2141, 2149, 2150, 2151, 2152, 2155, 2157, 2159


Day 2: December 20, 2019 (Friday) Time (IST) Programme Details

08.30-

09.30 Registration

Plenary and Invited Talks (Venue: Block-I, 2nd Floor, Hall: 209)

9.30-


Dr. Tata Narasinga Rao

Scientist ‘G’ & Associate Director

ARCI, Hyderabad-India

Title: Indigenous Nanomaterials-Based Technologies A

“Make in India” Initiative

Plenary Talk-5

Dr. J. Janardhana Reddy

Chief Scientist “G”

DRDO-DMRL, Hyderabad

Title: Thermal efficient materials for

electronic applications

Plenary Talk-6

Dr. S.V. Manorama

Principal Scientist,

CSIR-IICT, Hyderabad

Title: Development of oxide based

functional materials for magnetic

refrigeration 10.45-

11.00 High Tea

11.00-


Dr. P.K. Jain

Scientist “G”

ARCI, Hyderabad-India

Title: Synthesis of Carbon

Nanomaterials Composites and

Their Interfacial Effects on

Properties

Plenary Talk-8

Dr. Evgeny Moos

Professor, Ryazan State

University, Russia

Title: Perspective Functional

Electronics on a Base

Synergistic Processes

Invited Talk-2

Dr. M.V.N. Ambika Prasad

Professor, Gulbarga

University

Title: Studies of Conducting

polymers and its applications

Invited Talk-3

Dr. K. Venkateswara Rao

Professor & Head,

CNST, JNTUH, Hyderabad

Title: Metal Oxide Nanostrutures

for Gas Sensing

13.00-

14.00 Lunch Break

14.00-


Venue 1: Block I,


ICMM-709, 715, 722, 723, 724,

726,729, 732

Oral Presentations

Venue 2: Block I,


ICMM- 108, 114, 117, 120,

137, 143, 201, 403, 2127

Oral Presentations

Venue 3: Block I, 3rd Floor,

Hall: 311

ICMM- 123, 124, 125, 126,

128, 409, 706, 707

Oral presentations

Venue 4: Block III, 3rd Floor, Hall:

N308

ICMM- 147, 221, 292, 634, 2108,

2113, 2121, 2130

15.30-

15.45 Refreshment Break

15.45-


Venue 1: Block I, 3rdFloor,

Hall: 310

ICMM- 410, 632, 744,

745, 746, 749

Oral Presentations

Venue 2: Block I,


ICMM- 103, 228, 277, 421,

537, 609, 611, 613, 614

Oral Presentations

Venue 3: Block I,


ICMM- 141,411, 425, 508, 523,

524, 607, 625, 708, 711, 712

Oral presentations

Venue 4:Block III,


ICMM- 534, 602, 606, 621, 622, 735,

741, 2116, 2125, 2156

16.45-

18.00 Poster Presentations ICMM-101, 111, 112,115, 116, 118, 130, 131, 136, 144, 146, 161, 162, 167, 168, 170, 205, 206, 213, 222, 224, 226,

230, 234, 235, 236, 238, 249, 250, 268, 284, 286, 289, 290, 295, 301, 401, 405, 407, 422, 432, 503, 504, 505, 519, 520, 521, 522, 531, 538,

539, 545, 608, 616, 627,631, 633, 635. 636, 740, 2105, 2111, 2128, 2131, 2145, 2146, 2147

18.00-

19.00 Cultural Programmes

19.00-

20.15 Conference Dinner


Day 3: December 21, 2019 (Saturday) Time (IST) Programme Details

08.30-09.30 Registration

Plenary and Invited Talks (Venue: Block-I, 2nd Floor, Hall: 209) 9.30-11.00 Plenary Talk-9

Dr. Masahiro Sasaki

Professor, University of Tsukuba, Japan

Title: Nano-carbon materials from the

viewpoints of practical field electron emitters

Invited Talk-4

Dr. B.V.R. Tata

Professor, School of Physics

University of Hyderabad,

Hyderabad-India

Title: Photonic Bandgap Crystals: Physics,

Fabrication and Applications

Invited Talk-5

Dr. D.D. Ramteke,

University of Padua, Department of

Industrial Engineering, Italy

Title: Inorganic waste management:

for better tomorrow

11.00-11.15 High Tea 11.15-13.00 Oral Presentations

Venue 1: Block I,


ICMM- 248, 275, 402, 404, 512,

513, 536, 604, 629

Oral Presentations

Venue 2: Block I,


ICMM- 134, 157, 211, 266,

267, 282, 543, 2123, 2144

Oral Presentations

Venue 3: Block I, 3rdFloor,

Hall: 311

ICMM-133, 217, 227, 413,

502, 526, 527, 548, 719

Oral presentations

Venue 4: Block III,


ICMM- 110, 159, 218, 220, 231,

265, 285, 291, 2129 13.00-14.00 Lunch Break

14.00-15.00 Oral Presentations

Venue 1: Bock I,


ICMM- 516, 532, 734

Oral Presentations

Venue 2: Bock I,


ICMM- 207, 247, 264, 619, 626 15.00-15.15 Refreshment Break

15.15-16.30 Valedictory (Venue: Block-I, 2nd Floor, Hall: 209)


List of Plenary and Invited Talks


PT 1: Safer Multifunctional Sunscreen Active Ingredient via Native Atomic

Defects Promotion – Concept to Commerce

A. R. Kulkarni Department of Metallurgical

Engineering and Materials Science, Indian Institute of Technology- Bombay, Mumbai-400076

Abstract

Native atomic defects promotion in ZnO nanocrystals (NCs) has immense potential for

delivering innovative solutions for many challenging societal problems. In our laboratory,we focus

on developing different process chemistry to promote atomic defects in ZnO NCs. In this talk,

emphasis will be given to our recent innovation in photoprotection by taking advantage of defects

enabled optical transitions and surface chemistry in ZnO NCs. The defects promoted ZnO NCs are

proven to be a safer multifunctional sunscreen active ingredient by eliminating harmful UVA

emission usually found in commercial ZnO. In addition to this it offers cosmetic value along with

broadband UV protection. We have scaled up the process chemistry for defect-rich ZnO NCs to yield

10's of grams and successfully developed phase transfer techniques that allow an easy formulation

development for various skincare products. Considering the application potential and advancement

offered in the area of photoprotection, a leading specialty chemical industry is associating with us

for possible technology transfer. In view of this, our experience so far in the line of translational

research for multifunctional sunscreen active ingredient will be shared.


PT 2: Influence of noble metal ions on electrical and optical characteristics

of non-conventional animonate glass ceramics- possible materials for NLO

and piezo-optical devices

J. Ashok and N. Veeraiah* Department of Physics, Acharya Nagarjuna University,

Nagarjuna Nagar- 522 510, A.P., India *Corresponding author. Mobile: (+91-9440015188);

Email:[email protected]

Abstract

Sb2O3based glass ceramics are known due to their high density and high refractive index. By

adding traces of noble transition metal ions like Ag and Au, these materials find potential

applications in several photonic, plasmonic, NLO, piezo-optical devices etc. Further, by admixing a

small quantity of alkali oxides like Na2O, these materials exhibit high magnitude of ionic

conductivity and hence can also be used as electrolytes in solid state batteries. In this talk we

present, details of synthesis of Na2O-Sb2O3:Au2O3/Ag2O glass ceramics, characterization of the

samples by XRD, SEM, TEM, EDS, XPS and DSC techniques. Characterization studies indicated

samples are embedded with multiple crystallites composed of antimony ions, AuO and AgO

nanoparticles. Structural analysis is carried out by means of OA, IR, Raman and PL spectral studies.

OA spectra exhibited SPR bands. Finally, quantitative studies on dielectric properties, impedance

spectra and σac over wide ranges of frequency and temperature were performed. Observed

dispersion of dielectric parameters is discussed in the light of various polarization mechanisms.

Dipolar orientational effects exhibited by electric moduli spectra were analyzed using Cole-Cole

plots. Variation of σac in the low temperature region is discussed using QMT model. Analysis of the

results of σdc indicated SPH model is valid in high temperature region while its variation in the low

temperature region follows VRH model. THG beam and piezo-optical coefficients were found to be

the maximal for the samples mixed with small quantities of Au2O3. The positron annihilation

spectroscopy studies have indicated decrease of free volume space with increase of Au2O3

concentration. The comprehensive analysis of the results of electrical properties (together with the

results of THG and PAS studies) indicated the samples doped with minute quantities of noble metal

oxides exhibit high conductivity and such materials are useful as solid electrolytes.

mailto:[email protected]


PT 3: Microwave Resonators with Bulk and Thin Film Solids

K.C. James Raju 1CASEST, School of Physics, University of Hyderabad. *Corresponding author. Mobile: (+91) 9441917858;

E-mail:[email protected] Abstract

Resonators are an important component in microwave circuits used for frequency control. It

was one of the components that were difficult to miniaturize. Initially they were made with

waveguide cavities which are heavy and bulky. They could be replaced with solids with high

dielectric constant and low dielectric loss with low values of temperature coefficient of resonant

frequency. They came to be known as Dielectric Resonators. They brought down the dimension of

resonators from cm range to mm range. However for integration into miniature integrated circuits,

they were insufficient. Then the solutions found out mainly made use of the small acoustic

wavelengths in solids generated by electro acoustic conversion using piezoelectric effect. Using

piezoelectric substrates, surface acoustic wave (SAW) resonators came up. Further miniaturization

became possible once thin films of these materials were used. Resonators made with such thin

films are Film Bulk Acoustic Resonators (FBAR) and High Overtone Bulk Acoustic Resonators (HBAR).

An alternate method that has come up for microwave resonators is with micromachining. With

micromachining, it is possible to fabricate miniature mechanical resonant structures where as their

dimensions decrease, the resonant frequency will be reaching the lower GHz range. Using materials

like carbon nano tubes, the resonant frequency could reach GHz range. These miniaturized devices

are becoming more important for 5G applications as they employ large number of wireless

channels. Another area where they find increasing applications is with sensors. In this talk these

resonators will be introduced and the results generated by the author and his group will be

presented.

Keywords: Microwave Resonators; Electro acoustic resonance; Piezoelectrics; Dielectric

Resonators; FBAR.

Acknowledgements UGC, DST, DRDO, DAE. Reference James Raju KC, Miniaturization of Microwave Resonators, DOI: 10.31031/COJEC.2018.01.000504, COJ Electronics & Communications.

http://dx.doi.org/10.31031/cojec.2018.01.000504


PT 4: Indigenous Nanomaterials-Based Technologies A “Make in India”

Initiative

Tata Narasinga Rao Associate Director

International Advanced Research Center for Powder

Metallurgy and New materials (ARCI)

Balapur post, Hyderabad-500005, India

Abstract

The development and commercialization of nanomaterials-based technologies is occurring

globally at an increasingly rapid pace. While there is a significant increase in the number of

publications and patents, according to Lux research, the reported revenues from nano-products

have increased worldwide to an appreciable extent. Fortunately, India is sustaining in the

nanotechnology race and is successful in commercializing several technologies while maintaining a

strong hold on fundamental research. There is a huge scope for nanotechnogy commercialization

in India, provided research groups partner with industries and work on application development

specific to India, keeping the quality, cost, scalability and environmental aspects in mind, as the

competition in the present day’s open market is very high and challenging.

In the present lecture, ARCI’s efforts in application development of nanomaterials-based

technologies and their commercialization with the help of industry participation will be discussed.

While giving an overview of various applications being explored at ARCI, emphasis will be given on

two case studies dealing with nanotextiles (antibacterial & self-cleaning garments) and energy

storage devices (Li-ion batteries & supercapacitors) to showcase the importance of the selection of

nationally relevant research topics, and demonstrate the methods to transform laboratory research

to technology demonstration, further leading to commercialization. The role of industry for

successful commercialization of nanotechnologies, and selection of research topics aligning in line

with national missions such as “National Electric Mobility Mission” to eventually realize the “Make

in India” vision will be discussed.


PT 5: Thermal efficient materials for electronic applications

J. Janardhana Reddy, V.V. Bhanu Prasad Defence Metallurgical Research

Laboratory, Hyderabad, India

Abstract

The continued drive for miniature electronic devices of high frequency and high power

necessitated the development of high thermal efficient materials. Thermal efficient materials

should have primary properties of high thermal conductivity and low coefficient of thermal

expansion (matching to devices) to avoid thermal shock failures and lower in density for space and

avionic applications apart from other application specified electromagnetic, electrical insulation

properties. While usual heat sinks materials for laptops are aluminium and copper, but their high

CTE, electrical conductivity are barriers for the electronic substrate applications. An overview of

different materials for high thermal conductivity is presented.

Aluminium nitride, Aluminium –Silicon carbide, Aluminium nitride-silicon carbide and

Copper-Cf composites are some of the promising materials for the heat sink applications.

Aluminium nitride (AlN) is potential material for high power devices substrates and collector rods

and rf windows in high power microwave tubes. By reinforcing it with silicon carbide up to 40%,

thermally efficient Lossy ceramic composite materials for absorbing the microwaves in high power

vacuum electronic devices can be made. Tailor made aluminium metal matrix composites

containing Silicon carbide as high as 70% is a potential material for carrier plate applications in

electronic packaging industry. Continuous carbon fibre reinforced copper matrix composites are

being considered for heat sink applications.

DMRL has been developing these thermally efficient materials through powder metallurgy

route by hot pressing techniques. The optimized hot pressing conditions resulted in compacts

having densities near to theoretical densities. Aluminium nitride made at DMRL density was 3.24

g/cc and the CTE 4.83 ppm/K and thermal conductivity at RT was 200 W/m.K. These compacts were

characterized for their thermal conductivity over a temperature range up to 10000 C. The

composites conductivity decreased with increasing silicon carbide content or temperature while

Copper-copper coated carbon fiber composites properties are directional. Aluminum-70% SiC

fabricated at DMRL had density 2.94 g/cc, CTE 7 ppm/K, TC 110 W/m.K.


PT 6: Development of oxide based functional materials for magnetic

refrigeration

Sunkara V. Manorama Nanomaterials Laboratory, Polymers and

Functional Materials Division,

CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, Telangana. India.

Email: [email protected] and [email protected], web site: http://www.iictindia.org

Abstract

Materials Science is a fascinating field of science encompassing the design of materials for

applications not only for devices, healthcare, medicinal products and many more. It has the

mandate to improve quality of life. Undoubtedly, research and technological advances in materials

science plays an important role in strengthening, stimulating and sustaining the economic growth of

the country. In recent years, materials research has spawned countless advances in areas such as

energy both production and storage, consumer commodities, information technologies, medicine,

defense and agricultural sectors.

Imparting multi-functionality is one of the current thrust areas of research worldwide. In this

context semiconducting oxides have been surface engineering and made suitable for diverse

applications like in gas sensors, catalysis including photocatalysis, solar cells etc. Surface

engineering also makes these inorganic oxides suitable for applications in biology and biomedical

devices. Magnetic nanoparticle based structures have been designed as MRI contarst agents, for

PDT applications etc. In another such attempt magnetic materials are being explored as energy

materails.

The talk to be delivered at the International conference on multifunctional materials would

focus on the efforts of our group in the Nanomaterials Laboratory at CSIR-IICT in designing a special

class of functional magnetic materials exhibiting the 'Magnetocalorific Effect (MCE)' that is the basis

of magnetic refrigeration. If successful this would be a greener way for refrigeration. The talk

would showcase our efforts in synthesizing these mixed metal oxides and engineering them suitably

and demonstrating their applications in magnetic refrigeration. Findings from the ongoing research

activities would be presented.


PT 7: Synthesis of carbon nanomaterials composites and their interfacial

effects on properties

Dr. P.K. JAIN

Scientist “G” & Head, Center for Carbon Materials, International Advanced Research Center for Powder Metallurgy & New Materials (ARCI),

Hyderabad – 500 005 [email protected] and [email protected]

Abstract

Many of our modern technologies require materials with unusual combinations of

properties that cannot be met by the conventional metal alloys, ceramics, and polymeric materials.

This is especially true for materials that are needed for aerospace, underwater, and transportation

applications. For example, aircraft engineers are increasingly searching for structural materials that

have low densities, are strong, stiff, and abrasion and impact resistant, and are not easily corroded.

Carbon is an extraordinary element and of great importance to the scientist as well as for

technologist. Its unique characteristics made it versatile for many applications areas ranging from

house holds as well as major industries on one hand in high tech aerospace, defence, nuclear

energy and new energy source program on the other hand. Nanocarbon technologies deal with

many forms of carbon (tubes, onions, sheets, diamonds, graphenes, etc.), among which nanotubes

and graphene / nano-plates are most widely used. These nano-carbons offer the unique set of

thermal, mechanical physical and electronic properties, which makes it the ideal material for

various engineering and technological applications. These unique and fascinating properties have

resulted in many potential applications for high volume as well as for the niche areas. The complex

behaviour of the interfaces will be optimum with respect to deboning and pull-out processes. The

nanomaterials synthesis and their different behaviour along with applications will be discussed in

details.




PT 8: Perspective functional electronics on a base Synergistic processes

E. N. Moos

Ryazan State University, Department of Physics and Mathematics, Ryazan, Russia

Abstract

The synergetic aspect of the functional properties controlling of electronic materials is

considered in the report. A new aspect of the behavior of high melting metals such as W and Mo in

gradient fields is given, as well as, the observation of a similar effect for other isotropic cubic

crystals. It was found that, under the influence of a temperature gradient and an electric field, the

isotropic properties of these objects become anisotropic. The surface of the samples takes on a

substantially new structural form. In particular, it reveals a threshold character, namely, the need to

exceed certain critical (threshold) values of external gradients. All this speaks of the fluctuation-

dissipative nature of the rearrangement of the surface of poly- and single crystals. Possible practical

significance and application capabilities of this phenomenon are discussed. It is shown that the

thermodynamic nonequilibrium of the processes of influence on the surface of crystalline samples

can lead to the fractality of the structures formed by them. The issues of fractal dimension

management are discussed.


PT 9: Nano-carbon materials from the viewpoints of practical field electron

emitters

Masahiro Sasaki1,2* and Yoichi Yamada1 1Institute of Applied Physics, University of Tsukuba,

Tsukuba, 300-8573, Japan 2Tsukuba Research Center for Energy Materials Science (TREMS), University of Tsukuba, Tsukuba,

300-8573, Japan

*Corresponding author. Mobile: E-mail: [email protected]

Abstract

Nano-carbon materials such as graphene, fullerene, carbon nanotubes and their related

materials are known to possess quite various and unique electronical properties. Since some of

these have intrinsic sharp shapes with high aspect ratios, resulting in extremely large geometrical

field enhancement, the effects on field emission have already demonstrated by many researchers.

In my presentation, I will introduce the unique and unrevealed field emission features of nano-

carbon materials besides their geometrical field enhancement, which are applicable for practical

field emitters, and discuss the physics behind these field emission features. Here I will focus on the

field emissions from vacuum-arc prepared carbon film, fully graphitized pencil lead and C60

adsorbed on emitter tips. (1) Amorphous carbon thin films were deposited on W and Si tips by

means of arc-discharge of graphite rods in vacuum. These tips have shown field emission features

corresponding to very low effective work functions, although the macroscopic work function of this

film remains similar to that of graphite. The origin of these features is discussed on the basis of

scanning tunneling microscopy (STM) observations [1]. (2) The simply broken and completely

graphitized edges of pencil leads also showed high currents at very low applied fields, although the

tips were not sharpened. These features can be originated from graphene on the basis of the

energy distributions of emitted electrons [2]. (3) We have observed that the C60 deposited on W

tips gives very unique field emission microscopy (FEM) patterns, that is very similar to that of large

atomic-like orbitals, corresponding to the super-atomic molecular orbitals (SAMO) [3]. This suggests

that the electron orbitals of unoccupied states can be easily visualized by using FEM, which will

open the possibility to develop electronics based on the unoccupied states.

Keywords: field electron emission; nano-carbon materials; amorphous carbon; graphene; C60

References

S. Nagashima, et al., J. Vac. Sci. Tech. B 28, C2A13, 2010.

Y. Nishiyama et al., IVNC-IVESC 2019, 22-26 July, 2019, Cincinnati, OH USA.

M. Feng, et al., Science 320, 359 2008.


PT 10: Modeling and Synthesis of High-Temperature Superconductors:

Problems and Perspectives

Andrei I. Sechnoi Samara University, Gymnasium No. 3, Samara, Russia

Abstract

Perspectives of search and synthesis of new superconducting compounds are discussed.

Phase modeling in physicochemical systems has been carried out using an algorithm for searching

for the stoichiometry of the elements in composition of complex oxides based on representation of

polyhedra of compositions of multicomponent systems in multidimensional space. An original

method of synthesis of the bulk multicomponent oxide materials (potentially having the property of

superconductivity) obtained via solidification process occurs during slow cooling of cuprate melts

under conditions of "jumping" change of oxygen pressure is proposed. Advantages and perspectives

of this method for increasing values of critical current density and possibly of critical temperature in

superconducting materials are argued.


IT 1: Mosquito Bite Inspired Microneedle Technology for Health care

Applications

Ganesh Kumar Mani Micro/Nano Technology Centre, Tokai University,

Kanagawa, Japan 259-1292

*Corresponding author. Mobile: (+81) 4198 5591; E-mail: [email protected]

Abstract

Always there is great demand for in vivo testing to understand more about body metabolism

to provide effective diagnosis and therapy. Currently no industrial technology available for single

cell especially for pH, temperature or other cell metabolites. Compared to conventional sensors,

research on single cell microneedle sensor is still in its infancy due to their difficulty in fabrication,

poor flexibility, toxicity, scarcity of nanomaterials, instrumentation difficulty and poor stability.

Meanwhile painless micro/nano needles have been widely used for extraction of skin interstitial

fluid, vaccine and drug delivery over the past two decades, but their potential as sensor remains

largely unexplored. Therefore, we aim to develop single microneedle-based sensor for detection of

pH and other cell metabolites in single cell. A ~4.8 µm pH sensor was fabricated and tested it in-

vivo/in-vitro sensing capability was demonstrated. High stability and sensitivity make this novel pH

sensing microneedle is a cost effective and easy fabrication tool for biological sensing especially at

the single cell level. The developed sensor exhibited the Nernstian response of -46 mV/pH. The

fabricated microneedle sensor ability is proven by in vivo testing in mice cerebrospinal fluid (CSF)

and bladder. The pH sensor reported here is totally reversible and results were reproducible after

several routine testing. This type of sensor development definitely will bring new innovative ideas

that have the huge potential for drug development while continuous metamorphosis observation.

Keywords: Microneedle; Sensor, Nanosheets, Healthcare; Mosquito bite

Acknowledgements

Authors wish to express their sincere thanks to the Micro/Nano Technology Center (MNTC), Tokai

University (Shonan Campus), Japan for their infrastructural and financial support. Also the fellow

thanks to Japan Society for the Promotion of Science for funding support (Grant ID : P19076).

Reference

G.K. Mani, K. Miyakoda, A. Saito, Y. Yasoda, K. Kajiwara, M. Kimura, K. Tsuchiya, ACS Appl. Mater.

Interfaces 9, 21651–21659, 2017

G.K. Mani, M. Morohoshi, Y. Yasoda, S. Yokoyama, H. Kimura, K. Tsuchiya, ACS Appl. Mater.

Interfaces, 9, 5193–5203, 2017


IT 2: Studies of Conducting polymers and its applications

Dr. M.V.N. Ambika prasad Department of Physics, Gulbarga University,

GULBARGA - 585 106, Karnataka

Email: [email protected], phone: 94484-05817

Abstract

Polymers by virtue of their light weight and greater ease of fabrication have replaced and are continuing to replace metals in several areas of application. The idea that plastics could be made to conduct electricity would have been considered to be absurd. Indeed, plastics have been extensively used by electronic industry because of their very good insulating property. This narrow perspective is rapidly changing as new class of polymers known as conducting polymers or electro active polymers are being discovered. For more than two decades now, researchers have shown that certain class of polymers which are conjugated (those possess extended π – conjugation along polymer backbone), exhibit semi-conducting behavior. The discovery of doping in polymers has led to further dramatic increase in the conductivity of such conjugated polymers to values as high as 105 Scm-1. The discovery of these conducting polymers has opened up new frontiers in material Chemistry and Physics.

The Noble Prize of the millennium awarded to Shirakawa, Heeger and Mac Diarmaid in Chemistry for the year 2000 for their contribution to conducting polymers, is a great recognition of the “dawn of new plastic age”. Polyaniline (PANI) has emerged as one of the most promising conducting polymers, because of its wide spread applications and due to the combination of unique properties like simple preparation and doping procedure, good environmental stability, relatively high conductivity and low cost. The increase concern about environmental protection has led to continuous expansion in sensor development. The inorganic–organic composites containing polymer as the organic base and Tungsten oxide, Cobalt oxide and Cerium oxide as inorganic part have been used for studying its humidity sensing.. These composites have been synthesized by in situ deposition technique by placing fine graded WO3, CeO2 and Co3O4 in polymerization mixture of aniline. The results are well supported by FTIR spectral analysis, Scanning Electron Microscopy, XRD and Conductivity measurements. High temperature conductivity measurements show thermal activated behavior. The change in resistance with respect to percent humidity (RH) is observed. The composites in the pellet form exhibit almost linear behavior within a chosen range of humidity ranging between 10 and 95% RH. It is observed that PANI- WO3, PANI- CeO2 PANI- Co3O4 composites are promising materials for humidity sensors.

Similarly, investigation has been carried out on polyannline-magnesium chromate composites for the low concentration detection of LPG at room temperature. It is observed that electrical resistance increases with increase in the concentration of the gas. In case of polyaniline / MgCrO4 composites both the PANI sensing mechanism of swelling and MgCrO4 sensing mechanism of surface charge are responsible for variation of resistance within the sensing material. Therefore, it is observed that Polyaniline (PANI) / magnesium chromate (MgCrO4) to be a competent sensing material for LPG. Similar behavior for the Polymer / Nano metal oxide composites such has PANI-



V2O5,PANI-In2O3 and PANI-Ga2O3 have shown increase in resistance with increase in concentration of the LPG and this may be due to formation of surface charge and presence of capillary pores.

The microwave absorption / reflection characteristics of prepared composites have been studied in the X–bond (8-12 G Hz). Microwave properties such as Absorption and Transmission evaluated from S- parameter measurements are reported. These materials are found to have very good electromagnetic absorption and can be potential candidates for microwave absorbing applications. The Fourier transforms infrared spectroscopy spectra indicate a characteristic peaks which confirms the formation of composites. Scanning electron microscopy image indicates that the metal oxides are agglomerated with polypyrrole due to that the size of the composite particles increases to 7mm. The real part of permittivity (€0) at X-band measurements of all samples first decrease and then increase in the higher frequency range. Meanwhile, the values of €00 for polypyrrole–zirconia composites changes spontaneously due to the scattering of free charges explained by Kramers–Kronig relations. The reflection loss graph shows that the maximum reflection loss (RL) reaches up to 54.6dB at 10.8GHz and the effective absorption bandwidth is 6.7GHz.

Similarly, investigation has been carried out on the synthesis of polypyrrole/Ni-doped nanocomposites (NCs) as a protective pigment in organic coatings. Polypyrrole/Ni-doped NCs were prepared by in situ chemical oxidative polymerization of pyrrole monomer in the presence of ammonium per sulfate (APS) as oxidant. Ni-doped nanoparticles (NPs) synthesized by green synthesis, i.e solution combustion method using Aloe-Vera gel as a fuel Different concentrations of Ni (10-50 wt %) NPs were incorporated into the polypyrrole. The obtained final product was well characterized by means of powder X-ray diffraction (PXRD), Ultraviolet visible spectroscopy (UV-Vis), DC Conductivity ,scanning electron microscopy (SEM), and transmission electron microscopy (TEM).The size of the NPs were calculated by using Debay Scherer and Williamson-Hall methods, and it was found to be around 20 nm. TEM results are in consistent with the PXRD results. The morphology of the obtained product shows the porous and agglomerated particles which are due to large amount of gas evolution during NPs synthesis by solution combustion method. The present study demonstrates that the prepared samples are quite useful for electrochemical storage applications.

Keywords: polypyrrole; nickel oxide; nanocomposites; xrd; tem; dc conductivity


IT 3: Metal Oxide Nanostrutures for Gas Sensing

K. Venkateswara Rao

Centre for Nanoscience and Technology, Institute of Science and Technology,

JNTU Hyderabad, India

Abstract

Studies on semiconducting metal oxides for high precision chemiresistive gas sensors has

attracted lot of attention because of their advantages like flexibility, low power consumption, easy

production and miniaturization for domestic and industrial applications. When these metal oxides

form various nanostructures based on the morphology variation, a significant effect on

chemisorption or physisorption process during detection of toxic gases are observed. The current

study highlights the design and mechanisms of different metal oxides nanostructures like nanorods,

nano-rice shaped, nanoflowers, and nanosheets for sensing hazardous gases. The morphology of

the synthesized nanostructures was confirmed by electron microscope. The phase and crystallite

size were elucidated using X-ray diffraction studies. The functional groups present, were verified by

Fourier transform infrared spectroscopy. The results show that sensing material and the structure

of the sensing layer plays a crucial role in analytical gas sensing characteristics like sensitivity,

selectivity, response and recovery time and optimum operating temperatures due to various factors

like surface area, porosity, uniform alignment of nanostructures and availability of active sites for

adsorption/ desorption of target gases.


IT 4: Photonic Bandgap Crystals: Physics, Fabrication and Applications

B.V.R. Tata*

School of Physics, University of Hyderabad, Gachibowli, Hyderabad-50004, India

*Corresponding author. Mobile: (+91) 9444463933; E-mail:[email protected]

Abstract

Advances in the synthesis of nearly monodisperse colloidal nanoparticles have made it possible to fabricate crystalline arrays of nanoparticles (known popularly as Colloidal Nano Crystalline Arrays) with lattice parameters close to the wavelength of light. Light travelling through such crystals experiences a periodic variation of refractive index, analogous to periodic potential energy of an electron in an atomic crystal. This variation in refractive index in three dimensions with hundreds of nanometres periodicity is responsible for photonic band structure in these crystals. Thus these crystals are also known as photonic crystals/photonic band gap (PBG) crystals and have several emerging applications such as Bragg diffraction devices, optical filters and switches, photonic bio-sensors, non-bleachable display materials etc. Large single crystalline domains are crucial for some of these applications and lithography based approaches are unrealistic. The talk presents an overview of self-assembly methods employed in my lab for fabricating PBG crystals using, polystyrene, silica, and stimuli-responsive poly(N-isopropylacrylamide)(PNIPAM) nanogel particles. Issues involved in impregnating stimuli-responsive microgel particles with semi-conductor quantum dots for fabricating photonic crystal alloys and Holographic Optical Tweezers for fabricating seed crystals with desired symmetry and lattice constants will also be discussed. PBG crystals are capable of manipulating the interaction of light with matter at the micro/nano scale. This property finds several applications as bio-sensors, non-bleachable display materials, visual strain gauges etc. and the talk presents some of these applications. Keywords: Photonic Crystals; Photonic band gap; Colloidal Nanoparticles; Colloidal crystals Acknowledgements Author acknowledges my past students J.Brijitta, R.G.Joshi, D.K.Gupta, D. Karthickeyan and P.K. Mohanty for their contributions to this area of research and for the discussions. References 1. R. G. Joshi, D. Karthickeyan, D. K. Gupta, B.V.R. Tata, Colloids and Surfaces A: 558, 600, (2018). 2. D.K. Gupta, B.V.R. Tata and T.R. Ravindran, Applied Optics, 57, 8374 (2018). 3. D. Karthickeyan, R. G. Joshi, and B. V. R. Tata, J. Chem. Phys. 146, 224503-8 (2017). 4. B.V.R. Tata and R. G. Joshi , SMC Bulletin 6, 69 (2015). 5. B.V.R. Tata, R.G. Joshi, D.K. Gupta, J. Brijitta and Baldev Raj, Current Sci., 103, 1175 (2012).


IT 5: Inorganic waste management: for better tomorrow

D D Ramteke1,2 1Universita' degli Studi di Padova, Dipartimento di

Ingegneria Industriale Edificio Ex Fisica Tecnica,

Via Marzolo, 9, 35131 Padova, Italy 2Centre for Functional and Surface Functionalized Glass, Alexander Dubček University of Trenčín,

Slovakia

Contact: - https://ddphyvnit.wixsite.com/mysite

Abstract

Stabilization of waste is the main challenge in today’s world. The change in life style and

living standards of human beings produces billions of tons of waste every day. Stabilization of these

waste is the key demand for the environment protection. Stabilization of inorganic waste is possible

by using the glasses, but main criticism is related to costs and energy use. Also effectiveness

depends on the starting materials e.g. silica-rich waste favor the obtainment of glass, iron-rich

wastes affect the functionalities, influencing the porosity in cellular glass-based materials as well as

catalytic, magnetic, optical and electrical properties. Engineered formulation may lead to reduction

in the processing cost and energy required in the solid waste management. Stabilization of

industrial slag in the glass matrix is the best example of inorganic waste management engineering.

For the successful stabilization of inorganic waste multidisciplinary approach is crucial. Alkali

activated materials are the major step in this direction. These materials are the output of the

reaction of an alumino-silicate raw material in alkaline media (in general often referred as geo-

polymers). In alkaline aqueous media, alumino silicate compounds form ‘inorganic oligomers’

results in zeolite like gel formation. This gel consist a network of [SiO4] and [AlO4] tetrahedral

surrounded by alkali ions for the charge compensation. The alkali ions remain substantially

‘trapped’ in the gel, for an optimum Al2O3/SiO2 balance in starting materials, with the achievement

of chemically stable products. The stability can be further tested by entrapping pollutant from

industry. With entrapment of air bubble by using surfactant followed by firing, one can form cellular

glass-ceramics. Other method of waste management includes zeolite formation by using NaAlO2

and phosphoric acid based geo-polymers. These recycled product are useful in the building industry

and as a potential electromagnetic shielding.

https://ddphyvnit.wixsite.com/mysite


List of Oral Presentations


ICMM: 103 | Raman, FTIR and XPS Studies of Oxyfluoro -Phosphosilicate

Glasses

Vootukuru John Reddy1,2, H. Umamaheshwari3* R. Padmasuwarna1,

Venkata Krishnaiah Kummara4*, Ravi Nirlakalla4

1Department of Physics, Jawaharlal Nehru Technological University, Anantapur, India.

2Department of Physics, Nalla Narasimha Reddy Group of Institutions, Chowdariguda,

Hyderabad, India. 3Department of Physics, Sreenivasa Institute of Technology & Management Studies, Chitoor, India.

4Department of Physics, Rajeev Gandhi Memorial College of Engineering & Technology, Nandyal, India.

*Corresponding author. Mobile: (+91) 9293172363; E-mail: [email protected]

Abstract

Lanthanide (Ln3+

) doped oxyfluoride glasses have been investigated for diverse applications such as

lasers, optical amplifiers, laser cooling and optical waveguides. In this work, we have prepared

bismuth-phosphosilicate glasses with the chemical composition of 50 P2O5 + 25 NaF2 + 10 SiO2 +15

Bi2O3 (PNfSiBi) by usual melt-quenching method. Structural investigations were performed through

fourier transform infrared (FTIR), Raman and x-ray photoelectron spectroscopy (XPS) for PNfSiBi

glasses. FTIR spectrum reveals the vibrational modes at 370, 412, 468, 904, 1215, 1536, 1648, 1742,

2360, 3603 and 3736 cm-1

in the range of 400 – 4000 cm-1

. The laser micro-Raman unveiled different

vibrational bands centred at 531, 722, 1116, 1487, 1825, 2123 and 2646 cm-1

recorded from 100 –

3000 cm-1

. Highest intense band was positioned for PNfSiBi glasses at 1116 cm-1

which is owing to

symmetric stretching of non – bridging oxygen on a Q2

P tetrahedron. Elemental compositions and

binding energies of elements were explored from XPS analysis. Binding energies of PNfSiBi glasses

were obtained as 157 and 163 eV for bismuth (Bi) which situated in the 4f state (4f7/2 and 4f5/2), 100

eV for silicon (Si(2p)), 132 eV for phosphorous (P(2p)) and 1069.7 eV for (Na(1s)). From FTIR

analysis, a relatively low intensity of OH- ions in the PNfSiBi glasses could be a flexible candidate to

accommodate different Ln3+

ions to explore them for photonics applications.

Keywords: Phosphosilicate; bismuth oxide; oxyfluoride glasses; structural properties.

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ICMM: 108 | Fluorescent Trilayer OLED Device: an Electrical and Optical

Characterization Based Simulation

Arvind Sharma, Sagar Bhattarai, and T. D. Das

* Department of Basic & Applied Science, National Institute of Technology, Arunachal Pradesh

791112, India.

*T.D.Das. Mobile: (+91) 8901576358; E-mail: [email protected]

Abstract

A comprehensive simulation model for a trilayer OLED device (ITO/NPB/Alq3/TPBi/Al)

structure to demonstrate the carrier transport and optical characterization using a commercially

available software package. It is evident from the J-V curve and depicted when the turn-on (knee)

voltage is 6 V, the mean current density and electrical input power are 10 µA/cm2 and 59 µW/cm

2,

respectively.The device performance factor like external quantum efficiency (EQE) is 55-66% in the

wavelength region 300 to 450 nm, 4.35 for Vbias=8 V, and 6% at 50 nm thick EML. Among the

different thickness, a quite remarkable improvement for the 50 nm thick EML has luminance

concerning charge density 10,000 cd/m2 and the bias voltage by about 700 cd/m

2. The spectral

irradiance for the OLED device is 0.06 Wm-2

nm-1

sr-1

maximum in the spectral region 400-760 nm.

Thus, the CIE curve studied at a distinct angle and different thickness of EML that shows the peak

get shifted in thickness dependence case. This study provides an effective way to further optimize the

efficiency of the OLED device with a better suitable thickness.

Keywords: Knee voltage, Luminance, External quantum efficiency.

Acknowledgments

Author Arvind Sharma is the fellowship recipient of SERB-EMR project (SERB/2016/006121) for

carrying out his Ph.D. research work on inorganic and organic semiconductor materials at NIT

Arunachal Pradesh.

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ICMM: 109 | CONCEPT OF DEVELOPING THE MULTI FUNCTIONALFIXTURES

USING MAGNET RHEOLOGICAL FLUID.

GANDLA UDAYASREE

Assistant Professor, St.peters Engineering college, Misamma guda, Hyderabad, 500100,

India.


Abstract

Smart materials are playing a major role in today's technology because of its inbuilt characteristics.

This paper deals with one of such smart material called "Magnet rheological fluid (MRF) ". This

fluid is chosen for the development of fixture because of its response to magnetic field. There is a

remarkable development in every field of engineering & technology which is the main cause of

designing new equipments, vehicles & machines which contains few complicated parts. These

complicated parts require specially designed fixtures to hold it during machining operations. The

design &developing of these fixtures is a time & money consuming process. The development of

multi functional fixtures will save both time & money. Considering this necessity as a factor the

development of Multi functional fixtures using magnet rheological fluid is poposed.

Keywords: Smart materials, Magnet rheological fluid, Multi functional fixtures

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ICMM: 110 | Tuning Magnetic Anisotropy in Fe1-xNix Thin Films: Theeffects

of composition and substrate temperature

D. Taparia,1 J. Arout Chelvane2, A. Srinivasan1 and Perumal Alagarsamy1 1Department of physics, Indian Institute of Technology Guwahati, Guwahati – 781039, India

2Advance Magnetic Group, Defence Metallurgical Research Laboratory, Hyderabad 500058,

India

Email: [email protected]; [email protected]

Abstract

FeNi thin film has recently attracted enormous interest due to its large magneto-crystalline

anisotropy (Ku) and high saturation magnetization (MS) and acts as a viable candidate to replace

lower energy-density ferrites and Alnico magnets or rare-earth containing permanent magnets in

elevated temperature applications [1]. In this work, we report systematic investigations of tuning

magnetic anisotropy, structural, magnetic propertiesand magnetic domain structures of Fe1-

xNix(x=49-57) thin films. All the Fe1-xNixfilms were prepared by using magnetron sputtering

technique directly on Si(100) substrate kept at different substrate temperatures (TS). Crystal structure

of the films was characterized by using X-ray diffractometer (Rigaku TTRAX III 18 kW). Thickness

of the films were calibrated ex-situ using surface profilometer (Vecco Dektak 150). Room

temperature and temperature dependent magnetic properties were measured using vibrating sample

magnetometer (LakeShore VSM 7410). Magnetic domain images were analysed using Kerr

microscopy (Evico Magnetics, Ltd., Germany). Fe1-xNix films deposited at ambient temperature

exhibit weak L10 ordered structure. On the other hand, with increasingTS, the degree ofL10ordering is

enhanced up to 250 C for all the compositions.Magnetic studies reveal that the values of MS and Ku

increase progressively with increasing Fe content and exhibit a maximum of 720 emu/cc and 5.2106

erg/cc, respectively for Fe51Ni49 thin films prepared at 250C. The systematic investigations of the

effects of compositions and TS on the ordering and tuning of magnetic anisotropy and magnetic

domain structures in Fe1-xNix thin films will be presented in detail.

Keywords: FeNi films, Magnetic anisotropy, Magnetic domain



ICMM: 113 | Comparative analysis of the stuctural properties of Cr-Zn andCr

Co Nanoferrites

Dr. M. Lakshmi* *Vidya Jyothi Institute of Technology, Aziznagar Gate, C.B.Post, Hyderabad,

Telangana-500075, India.

Mobile: (+91) 9000207926; E-mail: [email protected]

Abstract

The series of Cr-Zn and Cr-Co nanoferrites bearing the general chemical composition Cr x Zn

Fe2−x O4 and Cr x Co Fe2−x O4 (0 ≤ x ≤ 0.5) were successfully synthesized by sol–gel method. The

prepared samples were annealed at 900 °C temperature for 3 hours. The aim of the present

comparative analysis was to investigate the impact of Cr3+

ion substitution on the structural

properties of Cr–Zn and Cr-Co nanoferrite systems. Various characterization techniques such as

XRD, FTIR, SEM, TEM, etc. were used to investigate the structural properties of both nanoferrite

samples. XRD patterns of the both ferrite samples provide information about the existence of single

phase spinel structure.The average crystallite size was found to be ranging from 24–34 nm and 56-

75nm in case of Cr-Zn and Cr-Co ferrite systems respectively. The analysis revealed that with the

increase in Cr- concentration (x), the average crystallite size decreased graduallyin Cr-Zn ferrite

system but decreased non-linearly in Cr-Co ferrite system.FTIR spectra show that the bands υ1

and υ2 are found to shift towards the higher frequency side with substitution of Cr3+

ions. SEM and

TEM micrographs demonstrated that nanoparticles with narrow size distribution were obtained.

The results indicated that the amount of Cr contents significantly influenced the crystal morphology

and structural properties of both Cr-Zn and Cr-Co nanoferrites.

Keywords:Sol-gel method; Cr-Co ferrite; Cr-Zn ferrite;structural properties.

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ICMM: 114 | Sr3Gd(PO4)3:Sm3+ nanophosphors for lighting applications

P. Shahab Khan1,2, B.C. Jamalaiah2*, B. Narasimha Rao3, G.V. Lokeswara

Reddy4

1Research Scholar, Jawaharlal Nehru Technological University, Anantapur 515003,

India

2Department of Physics, Rajeev Gandhi Memorial College of Engineering & Technology

(Autonomous), Nandyal 518501, India

3Department of Physics, S.V.R. Engineering College, Nandyal 518501, Andhra Pradesh, India

4Department of Physics, S.C.N.R. Government Degree College, Proddatur-516360, India


Abstract

Different concentrations of Sm3+

ions activated Sr3Gd(PO4)3 nanophosphors were prepared

by modified citrate gel combustion technique. The synthesized materials were characterized through

thermal, structural and visible luminescence studies at room temperature. The crystalline phase was

examined via powder X-ray diffraction studies and found to be consistent with PCPDS No. 29-1301.

The photoluminescence excitation analysis was carried out monitoring the emission at 610 nm

corresponding to the Sm3+

: 4G5/2 →

6H7/2 transition. Upon excitation at 402 nm, the studied

phosphors exhibit 4G5/2 →

6H5/2,

4G5/2 →

6H7/2,

4G5/2 →

6H9/2 and

4G5/2 →

6H11/2 transitions [1-3].

Among these, the Sm3+

: 4G5/2 →

6H7/2 transition show maximum intensity resulting strong and

intense orange luminescence from the Sr3Gd(PO4)3: Sm3+

nanophosphors. The emission spectral

profiles exhibit luminescence quenching at 1.0 mol% of Sm3+

ions. The lifetime of Sm3+

: 4G5/2

emission level was found decrease with the addition of Sm3+

concentration. The quenching of

luminescence and the lifetime was ascribed to the energy transfer at higher Sm3+

ions concentration.

The Sr3Gd(PO4)3: Sm3+

nanophosphors containing 1.0 mol% of Sm3+

ions show excellent

potentiality for lighting applications.

Keywords:Strontium phosphate; Nanophosphors; Combustion synthesis; Luminescence; White LED

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ICMM: 117 | Spectroscopic Studies on Alkaline earth ions on Bisumuth

based oxide Glasses

*Ch. Srinivasua, A. Edukondalub, S. Stalinc and Syed Rahmanc *Department of P&C, MGIT, Gandipet, Hyderabad, India.

bUniversity College for Women, Koti, Hyderabad, India

cDepartment of Physics, Osmania University, Hyderabad, India

Mobile: (+91) 9885476782; E-mail:[email protected]

Abstract

A series of glasses were prepared by melt quenching method in the glass system

10LiF-40Li2O-20RO-30Bi2O3 where R= Mg, Ca, Sr & Ba. XRD analysis has confirmed that the

samples are X- ray amorphous.The glass samples are characterized byopticalabsorption, Raman and

Fourier transform infrared spectroscopy(FTIR). Density of glass samples were measured using

Archimedes principle. It was found that, the densities of the glass increased in the order of MgO <

CaO < SrO < BaO as expected from the relative masses of the alkaline-earth ions. IR spectra of all

glass samples exhibited number of absorption peaks. With the introduction of LiF, the band at 865

cm-1

which is assigned to the symmetrical stretching vibrations in the BiO3 pyramidal units decreases

in intensity and the band at around 490 cm-1

shifts to lower wave number which can be due to the

formation of Bi-F bonds. From Raman spectra of the present glasses it can be observed that with

introduction of alkaline earth oxides from MgO to BaO into the present glasses, the intensity of the

bands corresponding to Bismuthate units [BiO3 and BiO6] decreases form BaO to MgO. This is also

conformed from the present IR spectra, where the intensity of the bands decreases with the

introduction of alkaline earth elements from BaO to MgO.

Key words: Glasses, MDSC, FTIR, Optical Absorption, Alkaline earth Oxides.



ICMM: 119 | Observation of Dielectric Anomalies at Magnetic Phase

Transitions in0.5(BiFeO3) – 0.5(Ba0.9Sr0.1TiO3) Multiferroic Ceramic

T. Sreenivasu1, K.S.K.R. Chandra Sekhar1, Anantharao Paila1, B. Suryanarayana1, K. Chandra Mouli1, J. Praveen Kumar2 and Patri Tirupathi2*

1Department of Engineering Physics, Andhra University College of Engineering,

Visakhapatnam-530003, India. 2Department of Physics, Rajiv Gandhi University of Knowledge Technologies, (AP-IIIT)

RK Valley- Kadapa district, Andhra Pradesh - 516330, India

.3St.Martin’s Engineering College, Dhullapally, Secunderabad -500100, India


Abstract

The Sr2+

substituted 0.5(BiFeO3)-0.5(Ba0.90SrxTiO3) (x=0.10) ceramic has been synthesized

by a conventional solid state reaction method. The structural analysis was carried out by room

temperature x-ray diffraction and Raman spectra. The study reveals stabilization of tetragonal phase

with P4mm space group. The coexistence of ferroelectric transition (TC = 270˚C) and diffuse

frequency independent dielectric anomaly at TN~ 445˚C were observed in temperature dependent

dielectric studies. The simultaneous enhancement in ferroelectric polarization (Ps) ~ 9.4 µC/cm2 and

magnetization Ms~2.8 emu/g, at room temperature was observed, which indicates BFBST is a good

multiferroic material for future spintronic device applications.

Keywords: Multiferroic, BiFeO3, BaSrTiO3



ICMM: 120 | LiGd (1-x)(WO4)3:xEu3+ nanophosphors for photonicapplications

P. Raghupathi1,2,3, B.C. Jamalaiah2*, T. Subrahmanyam4, K. Venkata Rao5

1Research Scholar, Jawaharlal Nehru Technological University, Anantapur 515003,

India 2Department of Physics, Rajeev Gandhi Memorial College of Engineering & Technology

(Autonomous), Nandyal 518501, India 3Department of Physics, Anurag Group of Institutions, Hyderabad 500088, India

4Department of Physics, Sri Venkateswara College of Engineering, Kodavalur 524316, India

5Department of Physics, S.B.V.R. Degree College, Badvel-516227, Andhra Pradesh, India

* Corresponding author: (+91) 9502702970; [email protected]; [email protected]

Abstract

The sol-gel synthesized LiGd(1-x)(WO4)3: xEu3+

(0 ≤ x ≤ 5.0%) nanophosphors were

characterized through thermal, structural and photoluminescence studies. They crystallized into

monoclinic structure and well consistent with PCPDF No. 49-0962. The emission analysis was

carried out at different excitations monitoring the emission at 615 nm corresponding to the Eu3+

: 5D0

→ 7F2 transition. Upon near ultraviolet excitation, the studied materials exhibit

5D0 →

7FJ (J = 0 – 4)

transitions [1,2]. Among the observed emission transitions, the Eu3+

: 5D0 →

7F2 transition has

maximum intensity causing intense and proficient red luminescence from the LiGd(1-x)(WO4)3:

xEu3+

nanophosphors. The concentration of Eu3+

ions was optimized to be 2.0 mol% for efficient

luminescence. The luminescence decay of Eu3+

: 5D0 emission state was recorded monitoring the

excitation and emission wavelengths at 395 nm and 615 nm, respectively. The lifetime of Eu3+

: 5D0

emission state decrease gradually with increase of concentration of Eu3+

ions and it has been

assigned to the energy transfer among the excited Eu3+

ions at higher concentrations. The colour

purity of emitted luminescence was analysized by evaluating the chromaticity coordinate using the

emission spectral profiles. The LiGd(WO4)3: Eu3+

nanophosphors containing 2.0 mol% of Eu3+

ions

are potential for photonic applications.

Keywords:Lithium tungstate; Nanophosphors; Sol-gel technique; Luminescence; Photonic

applications

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ICMM: 122 | Impact of annealing temperature on resonance field, line-width

andanisotropy in Ni0.65Zn0.35Fe2O4

M. Lakshminadh1, M. Murugan2*, GSVRK Choudary3, M C Verma4 1 Department of Physics, MLR Institute of technology, Dindigul, Secunderabad 500043,

India 2Department of Physics, Government of Arts College, Tiruchirappalli, 620022, India

3Department of Physics, Bhavan’s Vivekananda College of Science, Humanities and

Commerce, Sainikpuri, Secunderabad 500094, India 4Department of Physics, GIT, GITAM University, Vishakhapatnam, Andhra Pradesh,

530045, India.


Abstract

Influence of annealing temperature on resonance field, ESR line width, magnetic anisotropy,

resonance frequency and magnetic properties was studied for Ni0.65Zn0.35Fe2O4. Samples with

selected composition were synthesized by sol-gel method using PVA as chelating agent and annealed

at different temperatures from 400oC-1100

oC. Saturation magnetization gradually increases up to 74

emu/gm(1030oC) and then decreases with further rise in annealing temperature. Highest coercivity

was obtained at 750oC and decreases for higher annealing temperature. Lowest Mr/Ms ratio of 0.06

at 1030oC indicates the dependence of magneto static nature in domains with annealing temperature.

Steady rise in anisotropy and resonant frequency was observed with increasing annealing

temperature with a marginal drop at higher annealing temperature.Knowledge of dependence of

magnetic properties, anisotropy, line width, resonance field on annealing temperature allows us to

tailor material for antennas, multilevel chip inductor applications at high frequencies.

Keywords: Crystallite size, magnetization, anisotropy, electron spin resonance, Mossbauer

spectroscopy

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ICMM: 123 | Optimized Energy Consumption algorithm using IoT for Indoor

Environment

V.Usha Devi1, Dr.S.V.S. Prasad2

1&2Department of Electronics and Communication Engineering, MLR Institute of

Technology, Hyderabad-500043, India

*Corresponding author. Mobile: (+91) 9642175846;

E-mail:[email protected]

Abstract

The Internet of things (IoT) is a connection of multiple devices working under the same

environmental conditions. This is done with the help of temperature sensors, gas sensors,

microcontrollers and alternate objects which can be easily charged. As a result, IoT development

affects the need for renewable energy and efficiencies in energy consumption. In this paper, I tried

to bring out an optimized energy efficient system which can be helpful in improving the system

performance and can be easily adapted to its surroundings.

Keywords: Internet of Things; renewable energy; Energy utilization; Smart homes; Renewable

resources

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ICMM: 124 | IOT in Agriculture Irregation and Monitoring

M Vinod

MLRIT, Hyderabad,501401, Telangana


Abstract

An automated irrigation system mainly considered to optimize the usage of water on agriculture

because of climatic situation which leads to lack of rains. The farmers running on the agriculture

fields are needy of rain, bore wells as well as rivers. Suppose if the farm land has pumps for

irrigation it also desired someone to on/off the pumps. conventional water quality measurement is

through by taking samples that does not bring the real time data. In this, the gateway sensor is used to

handle sensor information and helps to broadcast data to web application using internet of things.

Wireless and soil moisture sensor is programmed with microcontroller based gateway which is used

to manage and maintain the flow and quality of water. By using an automated system water is saved

of up to 92% and manufactures a good yield compared with older irrigation systems. The system has

a spread wireless set of connections of soil-moisture along with temperature sensors positioned in the

root region of the plants. In addition, a gateway unit handles sensor information and transmits data to

a web application. All the system will be group using ARM and GPRS module using IoT. The

ESP8266 is a little unit allows microcontrollers to tie with a Wi-Fi network and build easy TCP/IP

connections by means of Hayes-style instructions. The plan of our system is to supervise the position

of sensor which can be monitored through cloud web page ,throughout the microcontroller. The web-

server is coupled to internet. This page contains all the information regarding the status of the sensor.

Purpose of this scheme is to examine and control dissimilar parameters in agriculture &engineering

field and also to find out the harmful area such as chemical or nuclear place. As we are using cloud

there is no data loss, it is secured and its always-on availability

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ICMM: 125 | Automatic track fault and object detection inrailway

infrastructure

K. Gangalatha, Dr.B.Sridhar,S V S Prasad

MLR Institute of Technology, Dundigal, Hyderebad, 500043, India

K.Gangalatha. Mobile: (+91) 8500974168; E-mail:[email protected]

Abstract

The assignment is to accord the multi sensor railroad clue geometry searching overframework.

Railroad Bridge abuse cachet is arrested by the sensor and move through limitedmodules. For simple

belief and with beneath adjourn the abstracts can be forward to thespecialist. To accumulate abroad

from blow and to avert the individuals. The cardboardproposes designing of able-bodied railway able

apprehension arrangement (RRCDS)application IR sensor accumulation for railway clue geometry

assay arrangement by auditionthe cracks on railway tracks. Most of the accidents in the alternation

are acquired due tocracks in the railway tracks, which cannot be calmly identified. The chiral assay

of railwayclue took added time and animal fatigue. The proposed arrangement introduces

Bluetoothbased technology, to anticipate the alternation accident. Two IR sensors are installed

atforeground end of the assay apprentice which monitors the clue and gives the cachet toArduino

controller. If there is able begin it anon sends the area of able via Bluetooth toadaptable phone. The

proposed torn abuse apprehension arrangement automatically detectsthe adulterated railway clue

after any animal interference. There are abounding advantageswith the proposed arrangement if

compared to the acceptable detective techniques. Theadvantages cover beneath cost, low ability

consumption, and beneath assay time and aswellfacilitate bigger assurance standards for abuse

advance and accommodate able testinginfrastructure. The Indian Railways has one of the better

railway networks in the world, crises-bridge over 1,15,000 km in distance, all over India. However,

with absorption to believabilityand commuter assurance Indian Railways is not up to all-around

standards. Among addedfactors, cracks developed on the balustrade due to absence of appropriate

apprehension andthe associated aliment affectation austere questions on the aegis of operation of

abusetransport.

Keywords: GSM, GPS Module,DC-Motor.

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ICMM: 126 | Soldier Tracking And Health Monitoring System

Badrinath Pulimamidi, D. Naresh Kumar, S.Venkata Surya Prasad MLR Institute of Technology, Dundigal, Hyderabad, 500043, India

MLR Institute of Technology, Dundigal, Hyderabad, 500043, India

MLR Institute of Technology, Dundigal, Hyderabad, 500043, India

Badrinath Pulimamidi. Mobile: (+91) 8801660371; Email: [email protected]

Abstract

In today’s world rival combat is a crucial aspect in any nation’s security. The countrywide security

mainly depends on soldiery, naval, air force and a vibrant role is played by soldiers. This system will

be beneficial for soldiers, who encompass in undertakings or in special actions. In rival terrain, our

territorial army not only have to deal with the physical risk, but also with load and exhaustion caused

by prolonged processes or even due to lack of doze. So, for their security persistence we need a tool

to remote soldier performance and health monitoring. And, in this project a device is instigated by

means of biosensors for health nursing purpose. This system permits GPS (Global positioning

systems) tracking of these soldiers. It is probable by M-Health. It can be well-defined as mobile

computing, communication technologies, medical sensors for health maintenance. In this system,

smart sensors are attached to the body of soldiers for detection and prevention. This is applied with a

particular server system for broad agility. This server will furnish the affinity to the server at the base

station with the use of wireless assembly. Individual soldier also has a GSM (Global system for

Mobile communication) module that permits to interconnect with the base station if any wounds

noticed. As quick as any other soldier cross the rival borders it is tremendously tough for the soldiery

base station to distinguish the particular or predicted location as well as the health condition of all the

soldiers. In our project we have come up with an idea of tracking soldier and this tool is implemented

by means of biosensors for health monitoring purpose as well as to stretch the condition status of the

soldier all through the war for their safety.

Keywords: GPS- Global Positioning System, GSM- Global System for Mobile Communication, M-

Health – Mobile Health

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ICMM: 127 | Synthesis and Characterization of highly Fluorescent

Donar/AcceptorSubstituted Imidazole Derivative for Solar Cell Application Shashikant Walki,a Lohit Naik,*b Ravindra M.K,a Hemantkumar M.S,*c

YoganandaK.C,d Soniya Naik,f Malimath G.H,*b Prashanth S.A,e and

Mahadevan. K.M.*a aDepartment of Chemistry, Kuvempu University, P. G. Centre Kadur, Shivamoga,

Karnataka, India. bUG& PG Department of Physics, Karnataka Science College, Dharwad, Karnataka,

India. cDepartment of Chemistry, Karnataka Science College, Dharwad, Karnataka, India.

dDepartment of Nanotechonology, Visvesvaraya centre for nanoscience and technology, VTU Banglore,

Karnataka, India. eDepartment of Chemistry, SVM Arts, Science and Commerce College, Ilkal, Karnataka, India.

fDepartment of Chemistry, Karnataka University, Dharwad, Karnataka, India.


Abstract

In the present work, we have synthesised donors/acceptor substituted derivative of

imidazole 4-(1-(3-chloro-4-nitrophenyl)-4,5-diphenyl-1H-imidazol-2-yl)benzoic acid (CNI) via one-

pot synthetic method and has been characterized by spectroscopic methods such as1H-NMR, IR,

SEM and EDX. The photophysical properties like, solvatochromic shift and quantum yield were

estimated. Energy band gap of the CNI dye was calculated in various solvents using theoretical and

experimental methods. Further, photosensitization of TiO2 nanoparticles from CNI dye has been

investigated using absorption, steady state and time resolved fluorescence methods. The increase in

absorbance and decrease in fluorescence spectra with different concentrations of TiO2 nanoparticles

confirmed the possibility of interactions between dye and TiO2nanoparticles. Rehm-Weller relation

suggests that, decrease in fluorescence of CNI dye was due to photo-induced electron transfer

process and the Stern-Volmer studies suggest that, the fluorescence quenching mechanism was due

to combined dynamic and static quenching process. The photo-induced electron transfer process has

been used in solar energy harvesting applications by fabricating CNI dye sensitized solar cell.

Photovoltaic energy conversion efficiency and fill factor of the CNI dye were found to be 1.85% and

0.57 respectively.

Keywords:Imidazoles derivatives; Fluorescence quenching; Photo induced Electron transfer; Dye

sensitized solar cell (DSSC).

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ICMM: 128 | Design of high sensitive alcohol sensor with vehicle ignition

disabling system

S. Harivardhagini

1CVR College of Engineering, Ibrahimpatnam, 501510,India


Abstract

Driving while either intoxicated or drunk is dangerous and drivers with high blood alcohol

content or concentration (BAC) are at greatly increased risk of car accidents, highway injuries and

vehicular deaths. Every single injury and death caused by drunk driving is totally preventable.

Although the proportion of crashes that are alcohol-related has dropped dramatically in recent

decades, there are still far too many such preventable accidents. Unfortunately, despite great

progress, alcohol-impaired driving remains a serious national problem that tragically affects many

victims annually. At present drunken drivers have increased enormously and so is the deaths due to

drunken drivers. The main reason for driving drunk is that the police are not able to check every car

and even if they catch any one the police can be easily bribed. So, there is a need for an effective

system to check drunken drivers.

In this paper an alcohol detection system is designed and implemented. Apart from sensing

the alcohol, the ignition of the fuel is regulated by a sensor circuit. The sensor circuit is used to detect

whether alcohol was consumed by the driver recently. This design also consists of sensor which is

used to check whether alcohol is consumed while driving. The effects of drinking and driving are

always risky and can often be lethal. A prototype is also designed which detects the amount of

alcohol taken by the person. When the amount of the alcohol is reached to a threshold limit

(Dangerous/maximum) it automatically turns off the combustion engine of the vehicle with buzzer

indication and simultaneously with a LED indication.

Keywords: High blood alcohol content or concentration (BAC); alcohol detection system; ignition

interlock system; alcohol sensor

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ICMM 132 | Investigation on the effect of Ni codoping on the structural and

optical properties of transparent Al:ZnO thinfilms

Srinatha N1, Raghu P2, H M Mahesh3, Suresh Kumar M R1, Basavaraj

Angadi4,* 1Dept. of Physics, RV Institute of Technology and Management, Bangalore, 560076,

India 1Department of Electronics, GFGC, Kuvempunagar, Mysuru, India 570023, India

3 Department of Electronics, Bangalore University, Bangalore, India 560 056, India 4 Department of Physics, Bangalore University, Bangalore, India 560 056, India


Abstract

There is an ever increased interest on ZnO due to its remarkable properties, such as, wide band gap,

high transparency in the visible region, etc and its possibility in the use of the combination of spin

and charge degrees of electrons when doped with transition-metal in ZnO, which open up the new

field of spintronics. It is also reported that, Al doped ZnO is used as transparent conductor material

due to its electrical resistivity, transparency in the visible region and non-toxicity [1-2]. Further, the

optical properties and magnetic properties can be tuned by co-doping by transition metals, which find

potential applications in opto-magnetic devices [1]. Therefore in this work, Ni co-doped Al:ZnO thin

films were prepared using spin coating technique. As a preliminary work, effect of co-doping (Ni)

concentration on the structural and optical properties of spin coated Al:ZnO thinfilms were

investigated. PXRD patterns exhibits preferred orientation along (002) plane i.e. c-axis orientation

along with few crystalline peaks of feeble intensity. The unit cell volume (lattice parameters)

increases with Ni concentration. Within the detection limit of PXRD, no traces of impurities were

observed. PXRD results show the substitution of Ni at Zn site in the host matrix without leading to

the formation of impurity phase. Optical properties were studied by recording optical absorbance and

transmittance spectra in the wavelength range 300 - 1000 nm using UV-visible spectrophotometer.

The results show that the prepared films exhibits transparency of ~ 90 % in the visible region. Also,

the band gap energy decreases with increasing Ni (codopant) concentration in Al:ZnO thinfilms. The

structural and optical results confirms that the deposited films are homogeneous, single phase and

transparent, hence suggests the films are the potential candidates for transparent conducting oxide

applications.

Keywords: Ni co-doped Al:ZnO thinfilms; electro-optic; Transparent Conducting Oxides.

Acknowledgements Authors are thankful to the DST-FIST for providing XRD facilities at Department of Physics,

Bangalore University, Bangalore.

Reference 1. J. W. Lee, K. N. Hui, K. S. Hui, Y. R. Cho, H. H. Chun, Applied Surface Science, 293, 55-61,

2014.

2. N. Srinatha, P. Raghu, H. M. Mahesh, B. Angadi, Journal of Alloys and Compounds, 722, 888-

895, 2017.


ICMM: 133 | Effect of Sb3+ and Y3+ ions on optical and spectroscopic

properties of holmium oxide doped calcio borate glasses

M. Gopi Krishna1,2, Ravi Kumar Guntu1, *, N.V. Prasad2 1Department of Physics, Sreenidhi Institute of Science & Technology, JNTUH, India.

2Department of Physics, University College of Science, OU, Hyderabad, India.


Abstract

The glasses of the composition 30 CaF2 – (10-x) Sb2O3 – x Y2O3 – 60 B2O3: 1 Ho2O3 (Where

x = 0, 5 and 10 mol%) are prepared. Prepared samples characterized by elastic, TL, UV and PL

technique. The values of density ( = 2327 Kg/m3), elastic modulus (Y= 21.98 GPa) and micro

hardness (H= 2.138 GPa) suggest that the sample Sb5Y5 exhibiting largest mechanical strength

(strongly interlinked covalent structure). The TL reports of the sample Sb5Y5 exhibiting good shape

symmetry factor (𝒖 = 0.524) and low AE’s (E𝛕 = 1.201, E𝛅 = 1.223 & E𝛚 = 1.239) under 30 min of

UV - irradiation might be good TL asset.Judd-Ofelt parameters are additionally projected. Which are

found to be best (Ω2 = 10.56 x 10-22

cm2, Ω4 = 2.47 x 10

-22cm

2 and Ω6 = 2.88 x 10

-22cm

2) for the

sample Sb5Y5 might be good optical asset. The radiative evolutions, corresponding to the emissive

transition 5S2 →

5I8assessed by PL technique. The evaluations are found to be best (At = 3229s

-1, τrad

= 181μs, β = 96.1 %) for the sample Sb5Y5 might be good radiative resource.

Keywords: Micro hard ness; trap depth parameters; J-O parameters:

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ICMM: 134 | The characterization of Nd doped BiFeO3

multiferroicpolycrystalline materials

J. Ramesha, S. S. K. Reddyb, M. Sreenath Reddyc, Ch. Gopal Reddya, P.

Yadagiri Reddya, K. Rama Reddya, V. Raghavendra Reddyd aDepartment of Physics, Osmania University, Hyderabad, Telangana, India

bDepartment of Physics, Chaitanya Bharathi Institute of Technology, Gandipet,

Hyderabad - 500075, India cDepartment of Physics, Nizam College, Basheerbagh, Hyderabad, India

dUGC DAE Consortium for Scientific Research, University Campus, Khandwa Road,

Indore, Madhya Pradesh 452001, India

*Corresponding author. Mobile: (+91)9441231003; E-mail:[email protected]

Abstract

The present work reports the preparation and study of multiferroic Nd doped BiFeO3(BFO)

polycrystalline samples. The samples are prepared with sol-gel method. The x-ray diffraction

measurements confirm the orthorhombic structure with Pnma space-group. Small amount of

secondary phase is also observed. SEM and EDX have been used to study the surface morphology

and weight percentage of the elements. The room temperature leakage current density (J-E)

measurements indicate grain boundary limited conduction and Ohmic conduction mechanisms under

lower and higher field regions, respectively. Ferroelectric (P-E& PUND) and Mössbauer

spectroscopy measurements are also carried out and are discussed in the present paper.

Keywords:Sol-gel method, XRD, P-E Loop and Mössbauer spectroscopy

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ICMM: 137 | Photoluminescence Studies of Eu3+ and Tb3+ Activated

Ba2SiO4Phosphor

K.Srikanth* and M.Srinivas Department of Physics, Osmania University, Hyderabad-500 007

Telangana state, India

*Corresponding author. Mobile: +919951930991; E-mail: [email protected]

Abstract

Eu3+

and Tb3+

activated Ba2SiO4 phosphors have been synthesized by using high temperature

conventional solid state reaction method. All synthesized phosphors are characterized by X-ray

Diffraction (XRD), Energy Dispersive Spectroscopy (EDS), Scanning Electron Microscope (SEM),

Fourier-Transform Infrared Spectroscopy (FTIR) and Photoluminescence Techniques (PL). The X-

ray diffraction patterns of the sample are indexed as orthorhombic structure. Elements are present in

the composition are Ba, Si, O, Eu and Tb as confirmed from EDS. In the photoluminescence

studies,Ba2SiO4:Eu3+

phosphor exhibits strong emission peak at 611 nm and Ba2SiO4:Tb3+

phosphor

exhibits high intense emission peak at 546 nm under UV excitations. These peaks may be attributed

to the transition 5D0 →

7F2 of Eu

3+ ions and transition

5D4 →

7F5 of Tb

3+ ions.The intensity of intense

peaksare increasing with Eu3+

concentration increases as well asthe high intense emission peak is

moderated from blue region to green region with Tb3+

concentration increases. Based on these

results, these phosphors may be useful as red and green phosphors in the lamp as well as displays.

Keywords: Barium Orthosilicate Phosphor,X-ray Powder Diffraction (XRD), Energy Dispersive

Spectroscopy (EDS) and Photoluminescence (PL).

Acknowledgements: We would like acknowledge to DST-SERB, New Delhi and OU-DST-PURSE-

II PROGRAMME for providing financial assistance to carry out this work and also thanks to Head,

Department of Physics, Osmania University, Hyderabad for providing research facilities.



ICMM: 141 | Gamma Ray Induced, Structural and Electrical Properties of

Nickel Ferrite Nanoparticles

Pooja Khedekar*, Shubhada Thorat, Mangesh Khedkar, Swapnil Jadhav, K.

M. Jadhav

1Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad


Abstract

Herein, we report the structural and electrical properties of nickel ferrite nanoparticles induced by

gamma ray irradiation. Nickel ferrite NiFe2O4nanoparticles were synthesized in nanocrystalline form

using sol-gel auto combustion route. The obtained nanoparticles were sintered at 500ºC for 6 h and

used for structural and electrical characterizations. These characterizations were made before and

after gamma irradiation. Single phase formation and nanocrystalline nature was confirmed through

X-ray diffraction analysis. The intensity, crystallite size and other structural parameters were

changed after gamma irradiation. The electrical properties such as DC electrical resistivity were

measured using two probe technique before and after gamma irradiation. The results of DC

resistivity measurements suggest that nickel ferrite nanoparticles exhibit semiconducting behaviour

obeying the Arrhenius relation. The observed changes in structural and electrical properties after

gamma irradiation may be attributed to creation of defects.

Keywords:Nickel ferrite nanoparticles, sol-gel auto combustion, XRD, Gamma irradiation.

Acknowledgements One of the authors Pooja Khedekar is thankful to Government Institute of Science, Aurangabad for

gamma radiation facility.


ICMM: 143 | Structural and photoluminescence of Tb3+ Ba3La2(BO3)4

M. Peddaiah1, P. Ankoji2, Dr. B. Hemalatha Rudramadevi* 1Department of Physics, Sri Venkateswara University, Tirupati-517502, A.P, India.

2Department of Physics, Sri Venkateswara University, Tirupati-517502, A.P, India.

*Corresponding author. E-mail: [email protected]

Abstract

A green light emission from rare earth Tb3+

doped at various concentrations of 0.02, 0.04,

0.06, 0.08 and 0.1 mol% in barium lanthanum borate [Ba3La2(BO3)4] novel phosphor have been

synthesized by conventional solid state reaction method. The crystal structure and optical properties

of the prepared samples were characterized by X-Ray Diffraction (XRD), FTIR and

Photoluminescence (PL) spectroscopy. From the XRD investigations it was confirmed that an

orthorhombic crystalline structure of host Ba3La2(BO3)4 and Tb3+

doped Ba3La2(BO3)4 phosphors.

From FTIR spectra, the energy absorption bondings between B-O and B-O-B were identified. The

Photoluminescence emission and excitation spectra of Tb3+

doped Ba3La2(BO3)4 were recorded by

spectrofluorometer analysis. We observed that, by the increasing of rare-earth ion Tb3+

concentration

in the prepared Ba3La2(BO3)4 phosphor samples, the photo luminescent intensities were much

improved and were reported. For the emission spectra of Ba3La2(BO3)4:xTb3+

(x=0.02,0.04, 0.06,

0.08 and 0.1 mol%) phosphors, four emission peaks were observed at 487 nm, 545 nm, 586 and 622

nm with their corresponding electronic transitions of 5D4 →

7F6,

5D4 →

7F5,

5D4 →

7F4 and

5D4 →

7F3at an UV excitation of 271 nm respectively. Among these transitions, a prominent green emission

with high intensity of wavelength at 545 nm corresponding to 5D4 →

7F5 transition was observed.

The CIE color coordinates of the emission of Tb3+

doped Ba3La2(BO3)4 phosphor were x = 0.2765

and y = 0.6948, which is located in the green region and hence this phosphor has a potential

applications in green light emitting devices.

Keywords: Phosphor sample, XRD, FTIR, photoluminescence, colour chromaticity.

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ICMM: 147 | Effect of sintering temperature on the structural and electrical

parameters of coblat ferrite (CoFe2O4)

Sumalatha M1, Shravan kumar Reddy S4, Sreenath Reddy M2, a, Suresh

Sripada3, Venkat Reddy P1, Gopal Reddy Ch2,Yadagiri Reddy P2 and

Raghavendra Reddy V5

1 Sreenidhi Institute of Science and Technology, Hyderabad-501301

2, Department of Physics, Osmania University Hyderanbad-500007

3 JNTUH College of Engineering, Nachupally, Jagityal-505501

4Chaitanya Bharathi Institute of Technology, Gandipet, Hyderabad-500075

5 UGC-DAE Consortium for Scientific Research, University Campus, Khandwa Road, Indoor-452001


Abstract

Ferrites are familiar for their ferrimagnetic properties and exhibits significant amount of magneto-electric

coupling in composite form. The effect of sintering temperature on structural and electrical properties of

inverse spinel structured cobalt ferrite (CoFe2O4) is presented in this paper. The samples (CoFe2O4) were

synthesized through well known sol-gel method and sintered at different temperatures 1000oC, 1300

oC and

1400oC for 6 hours. Rietveld refinement of X-ray diffraction (XRD) patterns confirms the phase purity of the

samples and found that samples were formed inverse spinel cubic structure with space group fd3min single

phase. There is a noticeable decrease in lattice parameters (a, b and c) and volume with the increase of

sintering temperature from 1000oC to 1400

oC. Micro structure of the samples was understood through SEM

images. P-E loop and leakage current density measurement results were corroborated with the microstructure

of samples.

Keywords: Sol-Gel; Rietveld refinement; sintering temperature.

Acknowledgements One of the authors Mrs. M. Sumalatha, is thankful to DST for providing the financial assistance through

PURSE project.

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0 1000 2000 3000 4000 5000

0.0

0.5

1.0

1.5

2.0

360K

355K

350K

345K

340K

335K

M(e

mu

/g)

H (Oesterd)

LSMO-c400

330K

ICMM: 148 | Magnetocaloric response of LSMO manganite

G. Lalitha1, Lanka Satyanarayana2 K. Jayanthi2 and Sunkara. V.

Manorama2*

1Department of Physics, Telangana University, Nizamabad 503322, India

2CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India


Abstract

A manganite with compositional formula La0.67Sr0.33MnO3 has been successfully synthesized

using novel combustion technique at 400oC for application in magnetic refrigeration. Structural

characterisation of the as-prepared sample by X-ray diffraction technique revealed the formation of

single-phase Rhombohedral structure with R C space group. The crystallite size of the sample was

calculated using Scherrer formula and was found to be 18.02nm. The microstructure of the sample

was studied using FESEM measurements and the grain size was found to be <100nm with rod-like

morphology. Further, X-ray photoelectron spectroscopy (XPS) studies established the presence of

both Mn3+

and Mn4+

states which gives rise to Jahn-Teller effect to explain ferromagnetic behaviour.

Fromvibrating sample magnetometry (VSM)studies in the 300-400K range at magnetic field of 100

Oe, the ferro to paramagnetic transition temperature (TC) was observed around 345K.The

magnetocaloric response of this material,from variation of magnetisation with applied magnetic field

below and above the transition temperature in the range 330-360K with a step of 5K was studied

reveal the following magnetic isotherms.

Using these isotherms Arrott plot (H/M versus M2) the magnetic entropies were deduced.

Relative cooling power, RCP has been estimated using maximum magnetic entropy and found to be

comparable with earlier reports.

Keywords: Magnetization; magnetic isotherms; manganites; magneto caloric effect (MCE).

Acknowledgements: GL thanks DST SERB for funding the project TAR/2018/000366 and all

authors are grateful to Director CSIR-IICT for the support.

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ICMM: 149 | Design and Development of a Low-Cost Magnetic

InductionSpectroscopy (MIS) Instrumentation

Tushar Kanti Bera1*, Toushik Maiti1, Suraj Prasad Barnwal1

1National Institute of Technology Durgapur (NITDgp), Durgapur, WB 713209, India

*Corresponding author. Mobile: (+919448853308); E-mail: [email protected]

Abstract

Magnetic Induction Spectroscopy (MIS) is a nondestructive testing technique that could be applied in

different areas of engineering, technology, and other applied sciences. The MIS system consists of

three main parts: electrical signal generation instrumentation (ESGI), electromagnetic interface

(EMI) system and object under test (OUT). The MIS technique is found promising for different fields

of applications such as biomedical engineering, industrial engineering, defence and securityand so

on, but the design of an ESGI needs to be studied in detail. As the MIS system is a non-contact

material characterization system, the signal to noise ratio (SNR) of the system is found to be reduced

for unwanted interference. Therefore, for an MIS system, the design of the ESGI is very crucial. The

works presenting the detail design aspects of the ESGI of an MIS system are still required to be

explored. This paper has presented the design, development, and testing of a low-cost MIS

instrumentation. Along with the mathematical modelthe electromagnetic system, MIS

instrumentation is developed with two windings of suitable turns using enameled copper wires of

required cross-sectional areas. The variable voltage multifrequency function generator developed to

generate the magnetic field lines is used to excite the primary coil. The voltage developed at the

secondary winding due to the Faraday’s electromagnetic induction principle is acquired to sense the

permeability of the different materials placed as the core of the electromagnetic interface. The SNR

has been studied for different amounts of voltages and frequencies of the electrical excitation applied

at primary winding. The advantages and limitations of the system have been described along with the

future work and possible applications of the system.

Keywords: Magnetic Induction Spectroscopy (MIS); Non-destructive testing (NDT); MIS

instrumentation, biological tissue characterization, signal to noise ratio (SNR).

Acknowledgements Research support has been provided by NIT Durgapur (NITDgp), West Bengal 713209, India.


ICMM: 151 | Understanding the Role of Structure on the Sensing

Performance of Nanocrystalline WO3 Based Chemoresistive Sensors

Supraja Sankeshi, N.Snehita Chowdary, Pooja Bajaj and Manorama V Sunkara* Nanomaterials Laboratory, CSIR-Indian Institute of Chemical Technology,

Hyderabad-500 007.

*Corresponding author: Mobile-(91)9866061347, Email- [email protected]

Abstract

Semiconducting oxides have been extensively studied for application as gas sensing materials

because of their ability to change their electrical resistance in response to the concentration of target

gas in its contact. Tungsten trioxide (WO3) belonging to this class of materials has other interesting

features such as diverse morphology and crystalline structures that could be effectively tailored to

design a material for efficient gas sensing. In this work, a facile hydrothermal synthesis method using

sodium tungstate dihydrate as the precursor is described. In the first stage we have been successful in

controlling the phase and morphology of the nanocrystalline WO3 and the role of synthesis

parameters like temperature and time to obtain a highly sensitive gas sensing material. Test gas

studies were performed on H2, Ethanol, NH3 etc to understand the role of microstructure on the gas

sensing performance. The gas sensing studies establish that the flake like morphology of the low

temperature (100oC) synthesized orthorhombic phase shows a much better gas sensing performance

that could be primarily attributed to the small particle size and thus larger surface area. X-ray powder

diffraction (XRD) confirms the phase of the WO3 (Figure 1) and Field Emission Scanning Electron

Microscopy (FESEM) establish the orthorhombic crystal structure with flake-like morphology of

WO3 (Figure 2). Incorporation of ‘Pd’ into the synthesized WO3 led to an improvement in gas

sensing along with a lower operating temperature. Work is in progress to tailor the properties and

develop a selective sensor for ethylene detection.

Acknowledgements: All the authors are grateful to Mrs.Y.Swarnalatha and B.Arun Kumar for their

relentless analytical support.



ICMM: 153 | Title of the Paper A.C Conductivity of Cobalt Substituted in

CopperFerrites by DSCM

Ch.Venkateshwarlu1, Guguloth Vinod2, U.Dhasharatha2, P.Ramesh2 and

LaxmanNaik. J*

1 Department of Physics, University College of Science, Saidabad, Osmania University,

Hyderabad 2Research scholars, Dept. of Physics, Osmania University, Hyderabad, Telangana


Abstract

Samples of the type Cu1-XCox Fe2O4 with x = 0.2, 0.4, 0.6 were prepared by DSCM i.e

double sintering ceramic method. A.C conductivity measurements were carried out at different

frequencies up to 50 Hz -05MHz at various temperatures from room temperature to about 673 K. The

A.C conductivity was measured by four probe method using vanyekerr electronics high precession

imp -dense analyzer (6500) model. The results showed that the conductivity increases with both

temperature and frequency, then the activation energy in the paramagnetic region is reveal higher

than that in the ferromagnetic region. At high temperatures the conductivity becomes frequency

independent. So we conclude that the conductivity in these ferrites consists of two kinds of

conduction mechanisms.

Keywords: Copper, Cobalt, DSCM and A.C conductivity

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presenting

author.


ICMM 156 | Spectroscopic studies on Samarium doped Sodium-Zinc-Borate

glasses

S. Hemalatha1, Madhu. A2, Madihally Nagaraja * 1, *

SSIT, Tumkuru, 572 105, India 2Bangalore university, Bengaluru, 560 056, India

*Corresponding author. Mobile: (+91) 9972341449;E-mail:[email protected]

Abstract

Samarium rare earth doped Sodium-Zinc-Borate glasses were synthesized using conventional

melt quenching technique. All formed samples were characterized by different spectroscopic

techniques. For all prepared samples XRD spectrum was recorded and it confirms the glassy nature

of the as prepared samples. Absorption spectra of samarium doped glasses revealed 13 transitions

from ground state: 6H5/2 →

4D7/2,

4D3/2,

6P7/2,

6P3/2,

4F5/2,

4I9/2,

6F11/2,

6F9/2,

6F7/2,

6F5/2,

6P3/2,

6F1/2 and

6H13/2. The prepared glasses have analysed with absorption spectra and optical band gap, Urbach

energies have been estimated. Physical properties like refractive index, density and other optical

parameters were evaluated and tabulated. The refractive index is nearly 1.67 for all the samples

which is suitable for photonic applications.

Keywords: Glasses, Spectroscopic studies, optical band gap, refractive index, photonic

applications

Acknowledgements Authors are thankful to the DST-FIST for providing XRD facility at Department of Physics,

Bangalore University, Bengaluru.

Reference

1. K. Linganna, Ch.Basavapoornima, C.K.Jayasankar, Optics Communications, 344, 100-

105, 2015.

2. F. Zaman, J. Kaewkhao, G. Rooh, N. Srisittipokakun, H.J. Kim, J. Alloys Compd. 676, 275

-285,2016.

3. D.D. Ramteke, A. Balakrishna, V. Kumar, H.C. Swart, Opt. Mater. 64 , 171–178, 2017.

4. F. Wang, B.J. Chen, H. Lin, E.Y.B. Pun, J. Quant. Spectrosc. Radiat.Transf. 147, 63–70,

2014.


ICMM: 157 | Electrical properties of Neodymium doped

Bismuthmultifunctional materials

D.Ravinder1*, G.Naveena2

1Department of Physics,Osmania University, Hyderabad- 500007, India

2Department of Physics, Osmania University, Hyderabad- 500007, India


E-mail: [email protected]

Abstract

Nd substituted bismuth nano crystalline multifunctional materials were prepared by citrate gel

autocombution technique. The structural characterization was carried out by XRD and SEM.

Electrical properties such are electrical conductivity and dielectric properties have been measured.

Plots of electrical conductivity versus temperature increases with increasing temperature and shown a

transition near Curie temperature. Dielectric properties such are dielectric constant and dielectric loss

tangent have been measured from 20Hz to 2 MHz at room temperature. Plots of dielectric constant

versus frequency show a normal dielectric behaviour of multifunctional materials.

The observed results can be explained on the basis of conduction mechanism and

Max-Well Wagnar polarization.

Keywords: Multifunctional Materials; Citrate Gel Auto combustion Technique; Electrical

conductivity; Dielectric constant; Polarization

Acknowledgements The authors are very grateful to DST-SERB, New Delhi for financial support.

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of the

presenting

author.


ICMM: 159 | Effect of Copper Concentration on Ethanol Sensing Performance

of Cu- stilbite Thick Film Sensor Megha Mahabole1*, Madhuri Lakhane2, Kishori Naik1, Pankaj

Waghmare3, VikasKutte4, Rajendra Khairnar1, Kashinath Bogle1

1Swami Ramanand Teerth Marathwada University, Nanded-431606, India

2St. John College of Engineering and Management, Palghar-401404 India

3 Solapur University, Solapur-413001, India

4Yeshwant College, Nanded -431606, India


Abstract

The present study deals with natural stilbite (Ca-stilbite) collected from the queries near Pune,

Maharashtra, India. Ion exchange process is carried out for partial exchange of calcium ions by

copper ions. Ion exchanged stilbite is characterized by XRD, FTIR and EDS techniques. Thick films

are deposited on pre-cleaned glass substrates using screen printing technique. These films are then

sintered at 650 °C for 2h for proper adhesion to take place and are finally used as sensors to test

ethanol. The XRD profiles and FTIR spectra reveal that the sensor material is a stilbite zeolite.

Incorporation of copper ions in stilbite structure can be confirmed by EDS data. Cu-stilbite films are

found to be sensitive to ethanol. The operating temperature, ethanol response, response/recovery

nature are observed to be the functions of concentration of copper ions. Higher the copper

concentration (0.2M) lower is the operating temperature (90°C) and higher is the ethanol sensitivity

(233). It can be concluded that partial replacement of calcium by copper ions in stilbite leads to

change in operating temperature and sensitivity.

Keywords: Stilbite, Ion exchange, Ethanol sensor

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the presenting

author.


ICMM: 172 | Quenching effect of co-dopant Pr3+ on Red Emitting Yttrium

Vanadate Phosphor Doped with Eu(III)

G.Neerajarania, , J.Shankara, P.Rajua, J.Anjaiaha, B.Mamathaa, N H Ayachitb

a Department of Physics, Department of Humanity and Science, Geethanjali College of Engineering and

Technology, Hyderabad, India

b Department of Physics, Rani Channamma University, Belagavi, India

*corresponding author: [email protected]

Abstract

Y1-XVO4: Eux-y 3+

: Pry3+

with x = 6 mole % and y = 0, 2, 3 ,4, 5, 6, mole % phosphors have

been prepared by solid state reaction. The dopant Eu3+

concentration was optimized along with the

co-dopant Pr3+

concentration in the yttrium vanadate host lattice with the help of photoluminescence

(PL) spectra. The phosphors have displayed red color under UV source. Pr3+

acts as quencher and

quenching effect of co-dopant Pr3+

on Red Emitting Yttrium Vanadate Phosphor Doped with Eu(III)

using luminescence Studies on Y1-XVO4: Eux-y 3+

: Pry3+

systems are presented in detail in this paper.

The emission intensities were determined and the relative fluorescence intensities have been

estimated. The richness of the red color is verified by determining the chromaticity coordinates (X,

Y) from the CIE standard charts.

Key words: optical materials; photoemission; Debye-Scherrer powder method; luminescence;

optical properties


ICMM: 201 | Molecular Dynamics Study of Short Range Order and

GlassForming Ability in FeXZr100-X Metallic Glasses Anik Shrivastava1,2*, Mahendra Khandpekar3, Satya Gowtam Dometti1,

Vivek Srivastava1, Mahesh Mohape1,Vinay Deshmukh1

1Marine Materials Technology Department, Naval Material Research Laboratory, Shil-

Badlapur Road Ambernath, Thane, Maharashtra, India 421506 2 Department of Physics, G.M.Momin Women's College, Bhiwandi, Thane, Maharashtra,

421302 3Department of Physics, B.K.Birla College, Murbad Road, Kalyan, Maharashtra, India

421304

*Anik Shrivastava. Mobile: (+91) 9503625857; E-mail:[email protected]

Abstract

To study the effect of composition variation on glass-forming ability and atomic structure of the

binary FeXZr100-X alloy system, the molecular dynamics simulations were carried out. The alloy

systems were quenched at a very high cooling rate of 1011

K/s. This fast cooling deformed the

crystalline structure of the alloy. The details of crystal structure were analyzed by radial distribution

function and Voronoi tessellations. The analysis has shown that in the process of disordering, the

atoms of Fe and Zr have arranged themselves in dominant Fe and Zr centred

Voronoi clusters having indices <0,1,10,2> <0,0,12,0> and <0,3,6,4> and <0,2,8,4 > respectively.

The small variation in Zr atomic percentage has enhanced some percentage of Fe centred

<0,1,10,12> and <0,0,12,0>. Moreover the fragility parameter (m) one of the key indicators of easy

glass formation was calculated using Vogel-Fulcher-Tammann (VFT) relationship, And it's value

was found well in agreement with those of good glass former. This also implied that Fe centred

clusters influence the packing density and lower the m value which may lead an alloy to show better

GFA.

Keywords:Glass Forming Ability,Voronoi Index,Molecular Dynamics.

Acknowledgements

We acknowledge Director NMRL for computational resource and financial assistance to conduct this

research work.

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the presenting

author.


ICMM: 207 | Characterization of Ba(NO3)2 and KNO3 and their Composite

Systemsthrough SEM and DSC

1S. Shashi Devi, 2S. Narender Reddy, 3A. Sadananda Chary3

1Department of Physics, Vardhaman College of Engg, Shamshabad, R.R. Dist, Telangana, INDIA.

2Department of Physics, University College of Engg, Osmania University, Hyderabad, Telangana,

INDIA.3Department of Physics, University College of Science, Osmania University, Hyderabad, Telangana,

INDIA.

Corresponding author E-mail :[email protected].. Tel:+ 91-9676101151.

Abstract

The SEM photographs on HITACHI S-4700 FE-SEM for Composite Solid Electrolytes 0.25Ba(NO3)2-

0.75KNO3, 0.19Ba(NO3)2-0.81KNO3,0.05Ba(NO3)2-0.95KNO3 and DSC(DSC-60-SHIMADZU)plots of

Ba(NO3)2,KNO3 and their composit systems of 0.62Ba(NO3)2-0.38KNO3, 0.37Ba(NO3)2-0.63KNO3,

0.25Ba(NO3)2-0.75KNO3, 0.19Ba(NO3)2-0.81KNO3,0.05Ba(NO3)2-0.95KNO3 mole percentageshave been

studied to understand the reason behind the increment of transmission of electricity in these

materials. Uniform distribution of particle size can be noticed in 0.25Ba(NO3)2-0.75KNO3,

0.19Ba(NO3)2-0.81KNO3 comparing to other mole percentages. In 0.19Ba(NO3)2 -0.81KNO3 particle size

is found to be uniform and larger compared to other mole percentages, which would effectively

reduce the grain boundary resistance and thus increases the transmission of electricity[1]. The

increment of transmission of electricity in the present system was explained as due to the enhanced

concentration of defects in space charge region which is created between the non dispersoid host

system and nano particles of dispersoid.

Keywords: Composite Solid Electrolyte, Transmission of electricity Enhancement, SEM, DSC,

thermal analysis.



ICMM: 209 | Synthesis, structure and optical properties of Indium filled

CoSb3 nanomaterials

Uday kumar M, Swetha R and Latha Kumari*

Department of Physics, B.M.S. College of Engineering, Bull Temple road, Bengaluru-

560019, India

*Corresponding author. Mobile: +919482734443; E-mail:[email protected]

Abstract

The nano-sized InyCoSb3 skutterudites (y = 0.0125, 0.025, 0.0375 and 0.0625) were synthesized by

solvo-/hydrothermal method at 240 0

C for 24 hours. The surface morphology of as-synthesized

samples analyzed by Field Emission Scanning Electron Microscope (FESEM) shows nanoparticles

with size of around 50 nm depicting narrow size distribution and Electron X-ray diffraction

spectroscopy (EDX) spectrum confirms the purity of the In-filled CoSb3 nanomaterials. The powder

X-ray diffraction (pXRD) pattern reveals all the compositions showing diffraction peaks indexed to

cubic phase of CoSb3 with Space group Im . However, no significant variation in the pXRD pattern

of In filled CoSb3 as compared to pure CoSb3justifies the successful filling of voids in cage-like

structure of CoSb3 with Indium. FTIR spectra of In filled CoSb3 presents vibration modes below

1000 cm-1

corresponding to Co-Sb bonding and Cobalt complex. A significance of In filling into

CoSb3 structure is also evident. A wide absorption has been witnessed from UV region to large part

of visible region, hence indicating the effect of nanoparticle, agglomeration and filling.

Keywords:Skutterudites; Solvo-/hydrothermal; Nanostructure; Filling; Optical properties.


ICMM: 211 | Structure and morphology (FTIR, Raman, SEM) studies of

BaTiO3 ceramics for capacitor applications R. Ravanamma1,2, K. Muralidhara Reddy2, Venkata Krishnaiah Kummara2*,

RaviNirlakalla2 1Department of Physics, Jawaharalal Nehru Technological University, Anantapur, India.

2Department of Physics, Rajeev Gandhi Memorial College of Engineering & Technology, Nandyal, India.

Abstract

Ferroelectrics having perovskite (ABO3) structure exhibit wide applications in the field of super

capacitor, transducers, energy storage, microwave and memory devices. Barium titanate (BaTiO3)

ceramics with the chemical composition of 50 BaO + 50 TiO2 (BT50) were used to preparesamples

when the powders were ground at 12 hours. General solid state reaction method was chosen to

calcine the pellets at a temperature of 600 oC for 6 hours. Optical absorption specrum of BT50

ceramics unveiled the characteristic bands in the near infra-red region positioned at 695, 1457, 1768,

1937, 2194 and 2390 nm. Fourier transform infrared (FTIR) spectrum reveals the characteristic

vibrational bands located at 566, 692, 852, 1062, 1453, 1753, 2458, 2828 and 3429 cm-1

. Two intense

bands were noticed at 692 cm-1

and 1453 cm-1

. Six Raman vibrational bands were unveiled in the

laser micro Raman spectra in the region of 50 -1200 cm-1

which are centred at 140, 198, 395, 515,

638 and 1062 cm-1

. From the Raman analysis, the maximum phonon energy of BaTiO3 ceramics

found to be 638 cm-1

. The vibrational bands of 638 cm-1

and 1062 cm-1

also revealed in the FTIR

spectrum. Scanning electron microscope (SEM) explores the morphological studies that revealed the

average size of the particle in BT50 is 177 nm obtained at 1µm. Further studies are underway to

explore these interesting materials for energy storage applications.


ICMM: 214 | Radiation-Induced Synthesis of Nanoparticles in Aqueous

Solution – A Mechanistic Approach

Dr. Avinash Singh1*, Dr. Apurav Guleria, Dr. M.C. Rath 1Departmentof Science and Humamities, MLR Institute of Technology, Hyderabad,

500043, India 2Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai,

400085, India

*Mobile: (+91) 8355811963; E-mail:[email protected]

Abstract

Synthesis of nanomaterials with desired properties and applications is one of the most popular areas

of research in the field of science and technology. The broadly adopted approaches for the synthesis

of nanomaterials are – (i) Top-down and (ii) Bottom-up approach. Out of these two approaches,

chemists prefer bottom-up approach for the synthesis of nanomaterials because of less expensive,

better control and more parameters which provide a variety of products with different properties and

applications. Radiation induced synthesis which comes under bottom-up approach exploits the

interaction of radiation (both high as well as low energy) with the solvent media to generate highly

reducing free radicals to induce the synthesis process. The advantages of radiation induced synthesis

over the other methods are: (i) Minimal use of potentially toxic chemicals (as reducing, capping and

cross-linking agents), (ii) Low energy consumption, (iii) Simple reaction scheme, (iv) In-situ

sterilization of product if required and (v) Dose dependent morphology of nanomaterials. In this

regards, the mechanistic approach for the radiation induced synthesis of different nanomaterials like-

CdSe and Si QDs which involve both high energy (radiation chemical) and low energy

(photochemical) using different capping agents in aqueous solution have been discussed. In radiation

chemical method, the radicals are generated upon radiolysis of water (H•, OH

•, eaq

-) after interaction

of high energy e-beam or gamma rays which will react with the solute molecules to generate

reducing radicals. On the other hand in photochemical method, low energy photons (UV) directly

interact with the solute molecules for the generation of reducing radicals e.g.- generation of 2-

hydroxy propyl radicals ((CH3)2C•OH) in acetone and 2-propanol in aqueous solution.

Keywords: Free Radicals; Morphology; Electron Beam Irradiation; Photoreactor.

Acknowledgements The author acknowledges DAE for research funding and MLR Institute of Technology for supports.



ICMM: 215 | Surface Functionalized Porous Nanomaterials for Theranostics

Chander Amgotha,*, Rompivalasa Santoshb,1, Murali Banavothb,2,

Phan Chi Uyenc,1,Tang Gupingc,2 aDepartment of Science and Humanities, MLR Institute of Technology, Hyderabad-

500043,TS, India bSchool of Chemistry, University of Hyderabad, Hyderabad-500046,TS, India

cSchool of Chemistry, Zhejiang University, Hangzhou-310028, China.

*Corresponding author. Mobile: (+91) 9908812120; E-mail: [email protected], [email protected]

Abstract

Novel bio-inspired nanoarchitectured materials with surface functionalized properties have potential

applications in various fields. Polymeric porous nanomaterials/particles/capsules are taking as a

challenging task for surface porosity as payload for anticancer drugs and nanomedicines for drug

delivery and cancer theranostics [1]. The hybrid of bio-inspired SiO2NPs, ZnONPs along with

biodegradable, biocompatible and bio-safe (3B) polymers can help to design and develop potential

carrier nanomaterial for biomedical and biotechnological applications.The metal (AuNPs/AgNPs) in

combination of 3B polymers can easily functionalized and nanomaterial or particle or capsule surface

profile can be modified based in the applications [2]. The active functional groups present in the

polymers lead to the self-assembly followed by the net-work formation capabilities. The interactions

between polymer and inorganic, organic and metal nanoparticles has been examined through the

following characterization tools FTIR, SEM, FE-SEM, AFM and TEM for functional groups, size,

shape, morphology, surface profile. The BET surface area, porosity and specific surface area of

nanoparticles. The nanomaterials/capsules with size of ~100 to 200 nm (in diameter) has been

engineered and used to develop nanoformulations for cancer therapeutics.

Keywords: Functionalized, nanomaterials, porosity, theranostics

Acknowledgements

The authors would like to acknowledge UGC for financial assistance under the RGNF Scheme. The

Centre for Nanotechnology, University of Hyderabad for TEM and HR-TEM characterizations. The

MLRInstitute of Technology for financial assistance and facilities.




ICMM: 217 | Synthesis, Characterization & Studies on

Polyaniline/Nanocomposites ThinFilms

Dr.Jakeer Husain1,Bushara anjum2, Dr.Nagalli Raghu3 ,Jaisheel Sagar3* 1 Assistant Professor dept of Engg Physics, K.B.N. College of engineering KBNU

Gulbarga,karnataka

2 Nagambika College of education for woman Bijapur University

3 Department of Mechanical Engineering, Farah Institute of Technology, Chevella,

JNTUH, India

*Author of Correspondence: Dr.Jakeer Husain

Email id:[email protected]: +918861157762

Abstract

Nanocomposites of Polyaniline/Copper oxide were prepared by in-situ polymerization method. These

nanocomposites were characterized by employing Scanning Electron Microscope (SEM),Transmission

Electron microscopy (TEM) ,Thermal study by (TGA).The dc conductivity of prepared composites was

measured as a function of temperature which shows the strong interaction between Pani and copper oxide

particles and exhibits semiconducting behavior. The prepared composites shows better Electrical& Thermal

properties which may be useful for Potential applications.

Keywords: PANI, Nanocomposites, TEM, SEM, conductivity, Sensitivity

Acknowledgements

The author Dr.Jakeer Husain gratefully acknowledges the financial support from VGST Program.


ICMM: 218 | Analysis of p-Si/AlN/n-ZnOHeterojunction Diode using

GaussianDistribution of Barrier Heights

Chandra Prakash Gupta1, Praveen K. Jain2, Shashi Kant Sharma3, Shilpi Birla1, Sandeep

Sancheti4 1

Department of Electronics and Communication Engineering, Manipal University Jaipur- 303007,

Rajasthan, India

2 Department of Electronics and Communication Engineering, Swami Keshvanand Institute of

Technology,Management &Gramothan, Jaipur-302017,Rajasthan, India

3Department of Electronics and Communication Engineering, Indian Institute of Information

Technology, Ranchi, Jharkhand, India

4SRM Institute of Science and Technology, Chennai, Tamilnadu 603203, India


Abstract

In this report, we have presented the temperature dependent electric transport study of p-Si/n-

ZnOheterojunction diode fabricated by RF sputtering. For the better electrical characteristics, we

have used AlN buffer layer between ZnO and Si to lower the mismatching of thermal expansion

coefficient/lattice constant between Si and ZnO. The crystalline structure and surface morphology

have been studied using XRD and FESEM respectively. The measurement of I-V characteristics with

temperature variation (303 K- 413 K) were performed using semiconductor parameter analyzer. The

values of barrier height and ideality factor were measured from the temperature dependent I-V curve.

The relationship between ideality factor and barrier height was found to be linear. The mean value of

barrier height and Richardson constant were obtained as 125 meV and 2.709 x 10 -13

A cm-2

K-2

.

Results also confirm that theory of thermionic emission is followed by p-Si/AlN/n-ZnO

heterostructure. Further, the modified Richardson constant was evaluated by considering the

Gaussian distribution of inhomogeneous barrier heights.

Keywords: Electrical Properties, RF Sputtering, p-Si/AlN/n-ZnOHeterostructure, Temperature

Dependent Study.


ICMM: 220 | Study of Electrostatic Actuated MEMS Biaxial Scanning Micro-

Mirrorwith Comb Structure

Dhrubajyoti Sadhukhan, Gajendra Prasad Singh Department of Nanoscience & Technology, Central University of Jharkhand, Ranchi-835205,

India


ABSTRACT

MEMS based actuator and scanning mirror is device that steers and reflects incident light by

angular rotation of the mirror itself. It finds applications in optical MEMS (OMEMS), digital light

projector, optical switch, adaptive optics, communications, signal sensing, and confocal microscopes.

For single axis scanning, the mirror itself provides the required angular rotation, while most of the

biaxial scanning micro mirrors have a gimbal configuration. Electrostatic actuation is commonly

being used because of ease of fabrication and work on the principle of electrostatic forces between

pairs of movable and fixed electrodes. Parallel plate type tip-tilt/scanning mirror is commonly being

used for smaller mirror dimensions (up to 2mm). For larger mirror diameter (>2mm), the desired

scan angle leads to large gap between the electrodes, which increases the driving voltage drastically

and leads to bulky driver controller. To reduce the driving voltage, the straight torsion springs which

connect the mirror to the gimbal are replaced by comb structures. In this paper, design, simulation of

electrostatic actuation based parallel plate comb type two axis tilt scanning micro mirror is described.

The effect of comb structure on pull-down voltage and resonant frequency is studied.

Keywords: Micro Eelectro Mechanical systems (MEMS), Electrostatic actuator, Scanning micro-

mirro, Adaptive optics.


ICMM: 221 | Performance of Li-ion Battery Anode: Investigating the Roleof

Alternate Binders

Supriya Pal1,2 and Pratyay Basak*1,2 1Nanomaterials Laboratory, Department of Polymers & Functional Materials;

2Academy of Scientific & Innovative Research (AcSIR)

CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, TS, India.

*Corresponding author. Mobile:(+91) 9652014644; E-mail: [email protected]

Abstract

Rechargeable Li-ion batteries although efficiently power small portable devices, implementation in

electric vehicle mobility to assuage environmental concerns demand batteries possessing higher

power densities and capacities while being compact and safer. Recent research is hence focused

towards developing battery components that can sustain high charge-discharge rates while

comprehensively addressing the safety issues. In our present research effort, attempts are made to

investigate the role of different binders on the performance of nanostructured lithium titanate (LTO,

Li4Ti5O12) anodes in half-cell configuration against Li-metal. Commercial nano-LTO, Super-P and

polyvinylidene fluoride (PVdF) are used as reference materials for comparative appraisal. An

endeavor is made to showcase the feasibility of water-soluble binders: sodium alginate (Na-alginate)

and sodium carboxymethyl cellulose (Na-CMC) for greener processing of the electrodes and evaluate

the effect on specific capacity, reversibility, charge retention, etc. Binders provide sufficient adhesion

interconnecting the active particles as well as maintain proper contact with the current collector, thus

are well understood to influence the conductivity of electrodes, electrolyte wetting behavior,and the

charge-transfer across interfaces. Comprehensive analysis of electrochemical impedance data

collected at the end of each galvanostatic charge/discharge cycle provided crucial clues in

understanding the charge transfer behavior for the electrodes fabricated with the binders.

Keywords: Binder; Lithium titanate; Adhesion; Impedance

Acknowledgement: The authors wish to acknowledge the University Grants Commission (UGC),

India for financial assistance in the form of Senior Research Fellowship, Academy of Scientific &

Innovative Research (AcSIR) and CSIR-IICT for the doctoral research support.

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presentin

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ICMM: 227 | Synthesis, characterization and optoelectronic properties of

alumina-tin oxide nanocomposite deposited on 1D carbon backbone Deepti R. Kulkarni1*, Narasimha H. Ayachit2, Suresh D. Kulkarni3,

Raviraj M.Kulkarni4

1Department of Physics, Rani Channamma University, Belagavi-591156, INDIA

2KLE Technological University, Hubballi, Karnataka, INDIA

3Department of Atomic and Molecular Physics, MIT, Manipal Academy of Higher

Education, Manipal, India-576104 4Centre for Nanoscience and Nanotechnology and Department of Chemistry, KLS Gogte

Institute of Technology (Autonomous), Udyambag, Belagavi-590008, Karnataka, INDIA

*Corresponding author. Mobile: (+91) 9242922096; E-mail:[email protected],

[email protected]

Abstract

Alumina-Tin oxide nanocomposite deposited on 1D carbon backbonefor solar cell and optoelectronic

applications was synthesized by simple co-precipitation method.The nanocomposite was

characterized by XRD, SEM, EDX and TEM. The TEM image indicates that the prepared Al2O3-

SnO2 nanocomposite is deposited on 1D carbon backbone. The length of the nanowire is in few

micrometers and radius is around 10 nm. The elemental analysis shows the presence of peaks due to

Al, Sn, C and O. The average crystallite size of SnO2 was found to be 5.185 nm from XRD analysis.

Further, no peaks related Al2O3 were detected indicating amorphous phase of Al2O3 nanoparticles.

Room temperature photoluminescence spectroscopy of Sn-Al2O3 nanowires revealed emission

ranging from 410 nm to 540 nm comprising of multiple emission bands centred at 433 and 504nm

and additionally shoulder peaks at 445, 455, 478 and 488nm. None of these bands correspond to the

band-gap of the material and hence should be due to different defect states within the band-gap. UV-

Visible diffused reflectance studies revealed that the band-gap of the nanocomposite is 4.23 eV. BET

investigation shows that the specific surface area of the nanocomposite is 130 m2g

-1 and pore volume

is 0.268 cm3g

-1.

Keywords: Alumina; Tin oxide; 1D carbon backbone; Solar cells; optoelectronics.

Acknowledgements

Authors would like to thank STIC Cochin for their support in characterization of nanostructures.

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the presenting

author.




ICMM: 228 | First-principles study of structural, elastic, electronic and

optical properties of cubic perovskite LiMgF3 for novel applications

K. Ephraim Babu1*, K. Neeraja1, D. Deenabandhu2, V. Venkata Kumar3,K.

Bueala Kumari3,Paulos Taddesse4,G. Tewodros Aregai5, B.Vikram

Babu6,K. Samatha6 and V. Veeraiah6 1Department of Physics, Narasaraopeta Engineering College(A),Narasarao pet,

Yellamanda (P.O) Guntur(D.T) Andhra Pradesh, 522601, India. 2Department of Physics, Dr. L. B. College of Engineering for Women, Visakhapatnam.A.P.

3Department of BS&H, St. Ann’s College of Engineering & Technology, Nayunipalli

village, ChallaReddy Palem Post, Vetapalem Mandal, Chirala, Prakasam District, AP - 523187, India 4Department of Physics, College of Natural Sciences, Arba Minch University, Arba Minch, Ethiopia.

5Department of Physics, Aksum University, Ethiopia

6Department of Physics, Andhra University, Visakhapatnam, Andhra Pradesh, 530003, India.


Abstract

Structural, elastic and optoelectronic properties of materials are important to identify their

applications in technology. In the present paper LiMgF3 is investigated to obtain these properties

using the highly accurate full-potential linearized augmented plane wave (FP-LAPW) method. The

exchange correlation effects are included through the generalized gradient approximation (GGA) and

modified Becke-Johnson (mBJ) exchange potential. The structural optimization of LiMgF3 is

compared with previous results and is found to be in good agreement with those results. The

predicted band structure shows an indirect (M-Г) bandgap of 6.1 eV. The elastic properties such as

elastic constants, anisotropy factor, shear modulus, Young’s modulus, Poisson’s ratio are calculated

and based on these calculations it is found that this compound is elastically stable and brittle in

nature. The contribution of different bands to the band structure is analyzed from the total and partial

density of states curves. Optical properties like real and imaginary parts of dielectric function,

refractive index, extinction coefficient, reflectivity, energy loss function, conductivity and absorption

coefficient are presented. Based on the optical properties of the compound, it is predicted that

LiMgF3 is suitable for optoelectronic devices.

Keywords: Elastic properties, Fluoroperovskites, FP-LAPW, DFT, Optical properties.

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ICMM: 231 | Factor affecting the performance of perovskite solar cell for

distinct MAPI layer thickness

Sagar Bhattarai1, Arvind Sharma1, Dr.T.D.Das1* 1Department of Basic and applied science (Physics), National Institute of Technology,

Arunachal Pradesh, Yupia-791112, India.

*Dr. T.D. Das. Mobile: (+91) 9830956468;E-mail: [email protected]

Abstract

From an extensive study, we proposed a perovskite structure

(ITO/ZnO/CH3NH3PbI3/C60/Au) to demonstrate the carrier transport and optical characterization

using a commercially available software package. We develop a visible light absorbing 1.65 eV

bandgap perovskite, CH3NH3PbI3 that can deliver 14.37% power conversion efficiency (PCE) and

external quantum efficiency of 82%. Among the different thicknesses of perovskite layer, the 250 nm

thickness of the perovskite layer offers the highest open-circuit voltage (0.807V), short-circuit

current density (9.2459mA/cm2), and fill factor (0.7677). It accounts for quite remarkable significant

improvement depicted in absorbance profile, mainly 86% for 250 nm thickness of the perovskite

MAPI layer. Simultaneously, an average of 94% observed in the absorbance profile in sweeping

angle cases from 0 to 85 degrees.

Keywords: External quantum efficiency, Power conversion efficiency, Short circuit current density,

Open circuit voltage, Fill Factor

Acknowledgements

Author Sagar Bhattarai is the fellowship recipient of TEQIP-III Fellowship for carrying out his PhD

research work on organic solar cell at NIT Arunachal Pradesh.


ICMM: 243 | Zinc Oxide Nanostuctures prepared by modified

ultrasonication-cumbustion method for optoelectronic device application

VishwalingaPrasad B1, Daruka Prasad B2*, Ningappa C3

1Department of Studies in Physics, Government First Grade College, Sirsi, 581401, India

2Department of Physics, BMS Institute of Technology and Management, Bangalore,

560064, India 3Department of Physics & Research Centre Vidya Vikas Institute of Engg and Tech

Mysuru , 570028, India


Abstract

In this work, eco friendly simple modified ultrasonication-cumbustion method has been

adopted to synthesize Zinc Oxide Nanoparticles using naturally available Vitis vinifera fruit and

Aegle marmelos L. leaves extracts.8.91 g of zinc nitrate, 10 ml of each extract and 10 ml of distilled

watermixture was taken in a round bottomed flask and stirred for 30 min to get clear solution. Then

the mixture was kept for ultrasonication at a frequency of 22 KHz for 30 min at a temperature of

353 K. Then the solution was heated in the muffle furnace for the combustion process for about 20

min at 633 ± 5 K. to get ZnO Nanopatrticles. The synthesized Zinc Oxide Nanoparticles showed

hexagonal wurtzite crystalline phase confirmed by Powder X-Ray Diffraction patterns. Scanning

Electron Microscope gives images of Surface morphology of the synthesized Nanoparticles. The

Energy Dispersive X-Ray Spectroscopy gives elemental composition of the prepared Nanoparticles.

From Ultra-Violet-Near Infrared studies,energy band gap calculated which is correlate with the

reported literature. Fluorescence emission studies shows the prepared ZnO Nanoparticles emissions

are in the blue region useful in optoelectronic devices and light emitting diodes.The red and green

fluorescence emissions can be further enhanced by choosing suitable europium rare-earth dopants.

Keywords: Zinc Oxide; Ultrasonication-cumbustion; Nanoparticles.

Acknowledgements

Author Dr. Daruka Prasad B would like to acknowledge the VGST , Government of Karnataka for

funding towards the project.



ICMM: 247 | FTIR, Raman and XRD analysis of graphene oxide

filmsprepared by modified Hummers method

G. Surekha1, 2, Venkata Krishnaiah Kummara2, Ravi Nirlakalla2, R. Padma Suvarna1

1Department of Physics, Jawaharlal Nehru Technological University, Anantapuramu, AP.

2Department of Physics, Rajeev Gandhi Memorial College of Engineering & Technology, Nandyal, AP.

Abstract

Graphene oxide (GO) is a promising material for energy storage device applications.

Modified Hummers method (MHM) was used to prepare GO films from graphite flakes by Sol-Gel

method. With the aid of bridging agent dimethyldichlorosiline fine GO films were prepared. Fourier

transform and infra-red (FTIR) spectrum of the GO thin film possess absorption bands at 461, 594,

670, 803, 1020, 1243, 1457, 1544, 1627, 2850, 2926 and 3429 cm-1

. A sharp OH- absorption band

was revealed at 3429 cm-1

. Two vibrational bands were noticed in the laser micro Raman spectrum

for pure graphite flakes at 1578 and 2718 cm-1

. However for GO five Raman vibrational bands were

unveiled centred at 413, 1344, 1597, 2697 and 2945 cm-1

. Among these bands, 1344 cm-1

was

assigned to D-band and 1597 cm-1

was assigned to G-band to the GO films. Compared to D-band, G-

band was dominant in the GO films. Several times of centrifugation and ultra-sonication process

have aided to obtain more intense of G-band. 2D and D + G bands were also revealed in the GO

films. X-ray diffraction (XRD) analysis was confirmed that a sharp peak at 10.64 degrees leads to the

GO thin film.


ICMM: 248 | 3d Printed Pcl/Ha/Go Biodegradable Polymer NanoComposites

for Bone Tissue Engineering

T S C Nataraj1 M. Meikandan2 1Assistant Professor, Department of Mechanical Engineering, Vignana Bharathi

Engineering College, Hyderabad, India

Research Scholar, Vel-Tech University, Chennai

([email protected]), Ph: +91 8309740042. 2Assistant Professor, Department of Mechanical Engineering,Vel-Tech

University,Chennai.

([email protected]), Ph : +91 9490907989.

Abstract

In this Research work, poly(caprolactone)/hydroxyapatite/Graphene oxide (PCL/HA/GO) composite

scaffolds for bone tissue engineering applications were produced by a melt extrusion (3D Printing)

additive manufacturing technique. Porous matrices with four different pore architectures were

produced by varying the pore size (400µm) and the lay-down pattern (0/45º or 0/90º). As for the

matrix composition, different HA percentages (0%, 15% and 20%) and different GO Percentages (

0%,20% and 25%) used in liquid melted PCL and then allowed for solidification. These scaffolds

were characterized in terms of chemical, thermal, morphological and mechanical properties using

techniques such as Fourier Transform Infrared Spectroscopy (FTIR), thermogravimetry, differential

scanning calorimetry, scanning electron microscopy (SEM) and compression tests. Additionally, the

vitro interactions between scaffolds and living cells were assessed.

Keywords: scaffolds; polycaprolactone; hydroxyapatite; Graphene Oxide; melt extrusion; 3D

Printing.


mailto:[email protected]),%20Ph%20:%20+91


ICMM: 253 | Battery Energy Storage Technologies for SustainableElectric

Vehicles and Grid Applications

G. Sree Lakshmi 1, Rubanenko Olena1, G. Divya2, Rubanenko Oleksandr3,

1Regional Innovational Center at the Faculty of Electrical Engineering University of West

Bohemia, Plzen, 306 14, Czech Republic 2Electrical & Electronics Engineering, CVR College of Engineering, Hyderabad, 501510, India.

3 Department of Electric Stations and Systems of Vinnytsia National Technical University, 21000,

Vinnytsia, Ukraine

*G. Sree Lakshmi. Mobile: (+91) 8897893714; E-mail: [email protected]

Abstract

The energy consumption in worldwide has been increasing rapidly, due to increase in world

population. This energy consumption growth is apparently impacting on the environment and the

society. This has accelerated the development and deployment of Renewable Energy Sources (RES)

harvesting technologies and facilities. The global electricity production by RES by the end of 2016 is

accounted to 24.4%. This increase in RES has highlighted the next big challenge, storage of energy

when demand is lower than the supply. There are many energy storage technologies existing from

decades. Battery technologies have the highest cost reduction potential at the moment. Battery

technologies are delivering significant advances in a wide range of industries, from electrical

vehicles to renewable power. From the discovery of electrical energy, there is a great need to store

the electrical energy generated for use on demand. Energy Storage Systems (ESS) is used to store the

excess electricity when a power production is greater than consumption. ESS play very important

role for off-grid storage applications to back up Renewable Energy such as Solar and Wind power,

used by people who live or work in remote areas. Electrical energy can be stored in different forms

including Electrochemical- Batteries, Kinetic Energy-Flywheel, Potential Energy-Pumped Hydro,

and Compressed Air (CAES). This paper gives the current state of battery storage technologies, its

main challenges, its applications and actions for future.

Keywords:Energy Storage Systems (ESS), Electric Vehicles (EVs), Renewable Energy Sources

(RES), Lithium-ion battery, Lead-acid battery.


ICMM: 254 | Dielectric Properties Analysis of Paper Capacitor

G. Sree Lakshmi 1, Rubanenko Oleksandr2, Rubanenko Olena1, 1Regional Innovational Center at the Faculty of Electrical Engineering University of West Bohemia,

Plzen, 306 14, Czech Republic 2 Department of Electric Stations and Systems of Vinnytsia National Technical University, 21000,

Vinnytsia, Ukraine


Abstract

The film-impregnated dielectric under operating conditions is subject to prolonged exposure to

electric and thermal fields, as well as mechanical loading. In addition to critical partial discharges,

the most serious drawback that impairs the film and condenser reliability in general is the

deterioration of the electro-physical characteristics of the polypropylene film and liquid dielectric

due to the gradual dissolution of the polymer in the liquid dielectric, which is determined by their

chemical composition. This interaction of components, which was investigated in detail, has a

thermoactivation nature, which relates to the processes of rearrangement of atoms or molecules with

the overcoming of potential barriers, and is manifested in the swelling of the polypropylene film with

subsequent dissolution of the amorphous component in the polymeric component. As a consequence,

irreversible structural changes of the film occur, which lead to a decrease in its electrical and

mechanical strength, as well as to an increase in the dielectric loss of the liquid dielectric.Capacitor

(Fig. 1 (a)) is designed to provide high-frequency communication at frequencies from 24 to 1500

kHz in power lines with a nominal voltage of 35, 110, 150, 220, 330, 500 kV AC 50 and 60

Hz.Coupling capacitor impregnated with environmentally friendly liquid - condenser oil.The short-

circuits consist of capacitor sections (Fig. 1 (b)): a thin layer of dielectric is laid between two thin

wide metal strips, and the dielectric film is placed on top and below the metal strips - capacitor

covers.This paper gives the detail analysis of dielectric properties of capacitor paper.

a) b)

Fig.1 – a - Capacitor connection; b- capacitor section and condenser paper for extra insulation

between sections

Keywords: Condenser paper, Insulation, Capacitor.


ICMM: 257 | Structural, microstructural and optical property studies on sol-

gelsynthesized Cr/Fe-doped CuO nanoparticles

J. Praveen Kumar1, K.S.K.R. Chandra Sekhar2, Anantharao Paila2 and

Tirupathi Patri1*

1Department of Physics, Rajiv Gandhi University of Knowledge Technologies, (AP –

IIIT), RK Valley,Kadapa – 516330, India. 2Department of Engineering Physics, A.U. College of Engineering (A), Andhra

University, Visakhapatnam – 530003, India.


Abstract

All Here with we reported a detailed synthesis of Fe/Cr co-doped Copper oxide nano particles with a

simple and inexpensive wet chemical method. The pure and Fe, Cr substituted CuO nanoparticles

was prepared with sol-gel chemical method are expedient for industrial application. The preliminary

X – ray diffraction and Rietveld refinement study revealed a pure crystallinity nature with

monoclinic crystal with C2/c phase. The average crystallite size was calculated by Scherrer’s formula

in order of 21 nm and further observation indicates with increase concentration crystalline size

increases. The scanning electron microscopy (SEM) images indicate particles are in 20-30 nm range.

The Raman spectroscopic study indicates the existence of molecular groups in the CuO nanoparticles

with the doping of Cr and Fe.

Keywords: CuO Nano particles, Sol – gel method, Crystallite size and Particle size.

Acknowledgements The authors would like to thank UGC-DAE Consortium, Mumbai Centre, India for providing

experimental facilities and financial support under UGC-DAE, CRS-M-216-Sponsored Project

Scheme.



ICMM: 261 | Optimal Use of Power Generated by Renewable Energy Sources

UsingLinear Programming Method

Dr. A. Jaya Laxmi*, Ch. Anjamma, R. Pradeep, A. Laxman rao JNTUHCEH, HYDERABAD, 500085, INDIA


Abstract

Renewable energy sources like solar and wind as Distributed Generation (DG) systems can

be made available to meet local power demand. Natural disasters mostly damage the distribution

system. Under these conditions it is necessary to supply power to emergency services like hospitals.

If DGs are available, these can be used to supply the load. To meet the maximum demand the

optimal use of available DGs is required. An optimization problem is formed using cost functions of

renewable energy sources and it is solved using Linear Programming method (LP) in MATLAB.

Problems with reproductive power, despite its purpose to the environment, continue to be associated

with its operation and reliability. The production and weather condition of some renewable energy

sources, such as wind and solar power generators are determined. Due to this intermittent nature,

power generated by these sources is highly variable in nature and cannot be considered as dispatch

able. As a consequence, the power supply must be maintained or backed up by alternate volatile

power sources such as diesel generator, battery or fuel cell. In this paper, three generation systems

like solar, wind and diesel systems are considered and an optimization problem is formed using cost

functions of these DGs.

Keywords: Optimization, Linear Programming Method, Reduced Gradient Method, Cost function.

Acknowledgements:

I thank TEQIP-II, JNTUHCEH for providing necessary infrastructure.

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ICMM: 264 | Influence of active layer thickness on the cut-off frequency ofa-

IGZO thin film transistor

Roshna B. Raj1*, Shiny Nair2, Ashutosh Tripathi3, T. Mukundan2, Shahana T.

K. 1 1Cochin University of Science and Technology, Kochi, 682022, India

2Naval Physical and Oceanographic Laboratory, Kochi, 682021, India

3National Centre for Flexible Electronics, IIT, Kanpur, 208016, India

* Mobile: (+91) 9895177200; E-mail: [email protected]

Abstract

In amplifying applications of amorphous-Indium Gallium Zinc Oxide (a-IGZO) based thin

film transistors (TFTs), the device cut-off frequency fT is one of the primary figure of merit and has

to be simultaneously optimized along with intrinsic device gain.Design optimizations like channel

length and gate/contact overlap length (LOV) scaling and operating the device at higher overdrive

voltage and process optimizations resulting in enhanced mobility and lower threshold voltages are

generally used for fTenhancement. But the design optimization of channel length scaling leads to

mobility degradation due to contact resistance (RC). It has been reported that analytically RC in TFTs

is directly proportional to the transfer length (LT) and inversely proportional to the LOV. LT represents

the effective area of charge transfer between gate and the contact. It depends upon the

metal/semiconductor interfacial resistivity, the vertical bulk resistance and the semiconductor sheet

resistance. With lower transfer lengths, RCreduces, effective mobility (µeff) increases and LOV can be

scaled down without adversely increasing the RC. Decreased LOV can lead to a lower overlap

capacitance and a higher fT. To study the effect of thickness scaling, a-IGZO based TFTs are

fabricated and characterized. Density of states model is extracted and TCAD numerical simulations

are used to study the influence of active layer thickness scaling, on LT, RC, µeff and fT. By varying the

channel lengths from 10µm to 100μm, transfer line method of contact resistance estimation [4], is

used to extract LT and RC of the devices. The active layer thickness is varied from 70µm to 20μm. It

is found that LT decreases as the active layer thickness scales down below the Debye length due to

lower vertical bulk resistance. This results in a lower RC and higher µeff, facilitating further scaling of

LOV leading to enhanced fT of the device.

Keywords: a-IGZO; thin-film transistor; cut off frequency; contact resistance; transfer length.

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ICMM: 265 | Influence of Thickness on the Peformance of the Pulsed Laser

Deposited CZTS Counter Electrode Based DSSC cells

A.C. Kasi Reddy1, K. Susmitha1, M. Gurulakshmi1, Thota

Narayana, M. Raghavender 1, Y.P. Venkata Subbaiah1, *

1 Department of Physics, Yogi Vemana University, Kadapa-516005, A.P., India.

Solid State and Structural Chemistry Unit, Indian Institute of Sciences

Bangalore 560012, INDIA

*Corresponding author. Mobile: (+91) 9966248876; E-mail:

[email protected]

Abstract

The copper zinc tin sulfide (CZTS) is a widely studied absorber material for thin film solar cells.

Recently, CZTS have found suitable for counter electrode (CE) material in Dye sensitized solar cells

(DSSCs) due to high cost of Pt.In this paper, we propose pulsed laser deposited CZTS on florin-

doped tin oxide (FTO) conducting substrate as efficient counter electrode and studied the thickness

effect on the performance of the DSSC.X-ray diffraction(XRD) and Raman spectroscopy reveal the

formation of single phase kesterite CZTS with (112),(220) and(312) planes confirms the single phase

CZTS as evidenced by weak and strong Raman modes at 285,337 and 352cm-1

. The influence of the

thickness of CZTS samples on the catalytic performance of DSSCs was also investigated. The electro

catalytic ability and electrochemical properties of the CZTS CEs were studied by cyclic voltammeter

(CV), electrochemical impedance spectroscopy (EIS), and Tafel plot. The performance of DSSCs

with various thickness of CZTS CEs was measured usingJ–V curves. The DSSC based on CZTS

counter electrodes deposited with the thickness of 300 nm showed maximum solar-to-electrical

power efficiency of 3.98%. The results indicated the potentiality of CZTS to replace Pt CE (5.55%)

in DSSC.

Keywords: CZTS; Counter Electrodes; Cyclic-Voltammeter

Fig. J-V curve voltage Vs current of different thickness of CZTS counter electrodes with Pt..

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ICMM: 266 | Electrical Transport Study of Fe1-xCrxSi

Sankararao Yadam 1, V. Ganesan 2

1Department of Humanities and Sciences, CVR College of Engineering, Telangana 50151,

India 2UGC-DAE CSR, University Campus, Khandwa Road, Indore-452001, India

*Corresponding author. Mobile: 8349942800; E-mail: [email protected]

Abstract

The Resistivity of Cr doped Kondo Insulator FeSi is studied for Cr concentrations x = 2.5,

7.5, 10, 12.5 and 15%. This system is known to exhibit metal to insulator transition (MIT) and

critical concentration (xc) for MIT is x = 1.94%. The current study revealed possibility of Variable

range hopping (VRH) for the samples above the xc for MIT. The energy gaps obtained by fitting the

VRH equation σ = σ0 – exp[-(T0/T)0.5

] to the resistivity are compared with those obtained from two

band model which was used to fit both thermopower and resistivity.

Keywords: Resistivity; Kondo Insulator; Variable range hopping; Energy gap

Acknowledgements Researchers of the Low Temperature Laboratory and Cryogenics, especially, Er. P. Saravanan for the

supply of cryogens from UGC-DAE CSR Indore, M. P. are thanked for their help.

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ICMM: 267 | Relaxation dynamics of Dimethylacetamide/Glycerol binary

mixturesinvestigated by dielectric spectroscopy

T. Vamshi Prasad a, V Manjula b, K.C. James Raju c, Y. Aparna a*, T. Vishwam b

aDepartment of Physics, Jawaharlal Nehru Technological University- Hyderabad, TS, India -500 085

bDepartment of Physics, GITAM (Deemed to be University) -Hyderabad campus, Rudraram village,

Patancheru (M), Telangana 502329 cSchool of Physics, University of Hyderabad, Hyderabad, Telangana 500046, India

Corresponding author email: [email protected]

Abstract

In the present manuscript, the dielectric permittivity of Dimethylacetamide/Glycerol binary

mixtures are determined at the temperature range of 298K-323K in the microwave frequency range.

The experimental dielectric permittivity, dipole moment, relaxation time values are used to obtain

remaining excessive parameters such as excess permittivity (εE), excess refractive index (nD

E), excess

inverse relaxation time (1/τ)ε, Kirkwood correlation factor(g

eff)and thermodynamic parameters.

Redlich-Kister polynomial equation is used to fit the excess dielectric parameters. Havriliak-Negami

equation is used to evaluate and analyse the relaxation time of the binary mixtures throughout the

measured temperature range. The experimental dipole moment values are compared with the

theoretical dipole moment values from DFT/B3LYP, MP2 methods. Natural bond orbital (NBO)

analysis is performed on the optimized geometrical structure of the above system to understand

molecular interaction between the binary mixtures in terms of hydrogen bonding.

Keywords:Dipole moment, Relaxation, DFT, NBO analysis, hydrogen bonding

Acknowledgements

The authors gratefully acknowledge University Grants Commission Networking Resource Centre,

School of Physics, University of Hyderabad, for giving the Opportunities to use the Research lab

facilities to carry out the above work.



ICMM: 269 | Diesel generator and SOFC Fuel Cell Based Hybrid Energy

System

Manjul Khare1, Manju Khare2 1Electrical and Electronics Engineering department, Geethanjali College of Engineering & Technology,

Hyderabad, India

[email protected] 2Electrical and Electronics Engineering department, Laxmi Narain College of Technology, Bhopal, India

[email protected]

Abstract

In India ample source of alternative energy is available, 65% population of India lies in rural

area and only 30% of rural area have a grid connected electricity. Their situation becomes

impoverished in summer time due to frequent load shedding. In this paper our aim is to design SOFC

and diesel based hybrid system that will cater domestic as well as irrigation need in a remote located

village. Design and modeling of Solid Oxide Fuel cell (SOFC) is discussed for the distributed

generation applications. Modeling and simulations are carried out in MATLAB Simulink platform.

Solid oxide fuel cells operate at temperatures near l0000C, these are highly efficient heat and electric

power source. Modeling of SOFC is done by using Nernst equation. In that the output power of the

fuel cell can be controlled by controlling the flow rate of the fuels used in the process. The fuel cell

source is integrated with diesel generator and battery hybrid energy system.

Keywords: Fuel Cell, SOFC, diesel Generator, battery.




ICMM: 275 | CFD Investigation of Double Pipe Heatexchanger Using Silica

Nano Fluid

G. NIVEDINI1, K. PRASAD2, Ch. SANDEEP3, K. VENKATESWARA RAO4* 1 M.TECH student, Mechanical Department, JNTU-Kakinada

2 Assistant Professor, Mechanical Department, JNTU-Kakinada

3 Associate Professor, Mechanical Department, Institute of Aeronautical Engineering, Dundigal

4Professor, CNST, IST, JNTU-Hyderabad

*Corresponding author. E-mail address: [email protected]

Abstract

This paper reports on the enhancement of heat transfer by the usage of nanofluid in place of

conventional fluids like water, oil, etc, in the double pipe heat exchanger. The heat exchanger is used

to transfer the thermal energy between two or more phases, such as solid, liquid or gas, at different

temperature and in thermal contact. The nanofluid is prepared by using silica nanoparticles, with

distilled water as the base fluid. In place of conventional water, the prepared nanofluid is applied in

the heat exchanger as the cooling liquid. A double pipe heat exchanger is modeled and meshed using

the ANSYS software.The heat transfer characteristics of nanofluid in the heat exchanger was

analyzed using ANSYS Fluent software. Finally, the CFD results obtained are compared with the

experimental results. Based on the results, it can be observed that the addition of nanoparticles to the

base fluid leads to significant enhancement of heat transfer characteristics.

Keywords: Silica Nano Particles, Double Pipe Heat Exchanger, Nano Fluid, CFD Analysis.


ICMM: 277 | Dielectric breakdown studies of ZnO-B2O3 glass ceramics mixed

with Ta2O5, Nb2O5 and ZrO2

A. Siva Sesha Reddy* and N. Veeraiah Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar- 522 510, A.P.,

India

*Corresponding author. Mobile: (+91-9494085195); Email: [email protected]

Abstract

Zinc borate glasses mixed with different concentrations of Ta2O5, Nb2O5 and ZrO2 were

crystallized. The prepared samples were characterized by XRD and SEM techniques. The results of

these measurements have indicated that the bulk samples are entrenched with Zn3Ta2O8 [1],

columbite ZnNb2O6 [2]and ZnZrO3 [3] (tetragonal/cubic) crystal phases, respectively, with varying

sizes and concentration depending upon the content of dopant transition metal oxides. The dielectric

breakdown strength (DBS) of these materials was measured in air medium at ambient temperature

along with dielectric properties viz., dielectric constant, loss tangent, electric moduli, electrical

impedance and a.c. conductivity over wide ranges of frequency and temperature. The analysis of the

results has suggested that the glasses doped with 3.0 mol% of Ta2O5 exhibited the highest insulating

strength, while for Nb2O5 and ZrO2 mixed glass ceramics value of DBS is found to increase with

increase of concentration of these two metal oxides. The highest values of DBS were measured to be

18.34, 17.49 and 18.92 kV/cm, respectively, Ta2O5, Nb2O5 and ZrO2 mixed zinc borate glass

ceramics. The reasons for such high DBS were identified and reported. Finally, it is concluded that

these glass ceramics are suitable as insulating layers in the screens of display panels.


ICMM: 282 | Computational Studies of Distinct Anilines for

ElectroopticalActivity

Marla Prasanti1, Anjali Jha2,Ch. Ravishankar Kumar1* 1Dept. of Physics, GITAM University, Visakhapatnam,530045, India

2Dept. of Chemistry, GITAM University, Visakhapatnam, 530045, India


Abstract

Significant studies of anilines reported biological activities like oxidation, polymerization,

arylation,alkylation and protonation for conformation, photophysical and electrochemical

studieswith experimental and computational methods like CNDO, MINDO,PCILO that arise due to

charge transfer interaction.These interactions still provide enough scope with analysis using electron

density method to determine physical, chemical and electroopical properties. The present work

attributes family of anilines-aniline(AN),p-chloroaniline(CAN) andp-nitroaniline(NAN) with

experimental studies like FTIR and FT Raman and Computational studies with GaussView 4.1

package using B3LYP –basis set 6-311++** for electrooptical properties. Interpretation of

experimental spectra of FTIR and FT Raman confirm the wave numbers are in specified range

corresponding to functional group and fingerprint regions. Intensity of the wave numbers in Raman

spectra are reduced in comparison with infrared spectra.Molecular structures are visualized with

molecular editor Avogadro for molecular properties. Computational studies are performed for these

optimized structures wherein the computed infrared spectra and Raman spectra are in agreement with

experimental spectra. Studies of charge transfer interactions determine properties like dipole

moment, EHomo, ELumo, energy gap, electrophilicity index, polarization and first order

hyperpolarizability. A feature of work is NAN possess greater tendency in charge transfer interaction

with reduced energy gap, high polarizability and first order hyperpolarizability that enable to form

complex related to optical materials and devices.

Keywords: Electron Density Method, FTIR, FMO and Polarization.

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ICMM: 285 | Sol-gel synthesis and electrochemical properties of wolframite

FeNbO4

D. Saritha* 1Chaitanya Bharathi Institute of Technology, Department of Chemistry, Hyderabad–500075,

India

* Dr.D.Saritha. Mobile: (+91) 9591908844; E-mail:[email protected]

Abstract

In the current effort, illustrate a different case FeNbO4 with wolframite structure.FeNbO4 was

prepared by sol-gel polymeric precursor method in prospect of estimated prominent specific

capacity. One cause is owing to the reduction of both Fe and Nb. The electrochemical lithium

insertion/extraction studies on wolframite FeNbO4 were conducted with a rate of C/10 in the

potential window of 1.0-3.8V. Ex-situ XRD procedure was used to identify the Structural changes

all the way through insertion/extraction of Lithium. The details of synthesis and lithium insertion

mechanism in FeNbO4 will be discussed.

Keywords: Electrochemical studies; Lithium insertion; electrode material.

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ICMM: 291 | A Facile synthesis of α - MoO3 using Eggshell Membrane

biotemplatefor Gas Sensing

B. Geeta Rani1, M. Sai Bhargava Reddy, K. Venkatesawara Rao1* 1Center for Nanoscience and Technology, Institute of Science and Technology, JNTU

Hyderabad, India

*Corresponding author. Mobile: (+919440858664); E-mail:[email protected]

Abstract

We report a facile hydrothermal synthesis of α-MoO3 nanorods by employing an eggshell

membrane bio template. The bio template performs dual role as a hard template and as a reducing

agent. The prepared α-MoO3 nanorods were confirmed to have orthorhombic crystal structure by X-

ray diffraction measurement. The morphology studies showed nanorod formation. FTIR study

verified the functional groups present. The bio synthesized α-MoO3 nanorods showed good gas

sensing properties towards NO2 analyte gas. The optimum operating temperature was around 110°C

and the best response was at NO2 concentration of 20ppm. Very low response and recovery was

recorded and also the nanorods showed very good selectivity towards NO2 gas as compared to CO2,

ethanol, isopropanol, methanol, acetone. This study confirms that eco-friendly bio synthesis using

eggshell membrane can be utilized to prepare metal oxides for gas sensing application.

Keywords: MoO3 Nanorods; Eggshell membrane; Gas Sensing, Sensitivity


ICMM: 292 | Structural,Mechanical and Elecrtical properties of NiO-GDC20

composite anodes for intermediate temperature Solid oxideFuel cells

M.Narsimha Reddy1*, P. Vijaya Bhaskar Rao2 , S.S .Bhoga3 , Mahesh Bansod4 V.Sreehari

babu5 1& 5

Department of Physics, Gurunanak Group of Institutions Technical campus, Ibrahimpatnam

,Hyderabad -501506 ,Telangana, India. 2 Department of Physics, College of Natural and Computational Science, Wollega University,

Nekemte, Ethiopia. 3&4

Department of physics, R.T.M University, Nagpur -440033, Maharashtra, India


Abstract

Nano CompositesNiO and GDC20 were synthesized as X (NiO) +1-X (Ce0.8Gd0.2O2-δ) where

(X = 40& 45 wt. %) for intermediate or low temperature operating solid oxide fuel cells (SOFC).

For composite anode materials, NiO and GDC20 nano powders were mechanically mixed and

calcined from 600 o

C to 750 o

C. Samples were pelletized and sintered at 1300oC. Systematic study of

structure, purity, phase and structural parameters of anode samples were carried out by XRD and

SEM. Mechanical strength of anode composites were estimated by Vickers micro-hardness and

observed that microhardness of composites are varying from 5.09Gpa to 5.52 Gpa. Electrical

properties D.C conductivity and A.C conductivity of anode composites were computed using four

probe method and impedance analyser respectively. The A.C conductivity and their activation

energies of the anode samples (compositions X = 40& 45 wt.%) were computed from RT to 500 o

C

with the impedance data and the conductivities are found 2.95 x10-3

S/cm and 7.53 x10-3

S/cmrespectively at 500oC (frequency 5 MHz) .The activation energies of A.C conductivity have

observed that decrease with increase in frequencies.

Keywords: SOFC; Anode; nanocomposite. D.C conductivity and A.C conductivity

Acknowledgements:

The authors are thankful to the Department of metallurgical engineering and material science, IIT

Bombay and Professor S.S Bhoga, Department of physics R.T.M University Nagpur for providing

experimental support.


ICMM: 302| Mapping Solution Loss-Tangent Deposition Rate of MnZn-

Ferrite via Microwave-Assisted Solvothermal Processing

Charu Singh1, R D Raland2, Ranajit Sai2, S A Shivashankar2, Piyush Jaiswal1* 1Centre for Advanced Studies, AKTU, Lucknow, 226031, India

2Centre for Nano Science and Engineering, IISc., Bangalore, 560012, India


Abstract

Microwave Assisted Solvothermal (MAS) processing offers fast and conformal deposition of

nanocrystalline ferrites films on a Si-chip in a CMOS-compatible manner [1].Briefly, selected

metalorganic precursors, dissolved in a chosen mixture of polar organic solvents, transforms into the

desired nanocrystalline ferrite thin film under the influence of µ-wave irradiation and adheres well to

the substrate submerged in solution. Nanocrystalline manganese zinc ferrite (MZF), deposited via

MAS process,exhibited great potential to meet the requirements of upcoming 5G technology devices

– enhanced Q-factor of an on-chip inductor by 30% at C-band (4-8 GHz) [2]. However, MAS

process, still in its infancy thus has not been thoroughly studied/established parametrically. This lack

of understanding renders suboptimal reproducibility of the physical and magnetic characteristics of

the deposited film. This work explores the effect of precursor solution preparation protocol on the µ-

waveheating mechanism, thus, impacting film deposition rate. Keeping constant deposition

parameters (deposition time, µ-wave power) throughout, a key pre-deposition step, sonication time –

required to dissolve the solute precursors into the polar solvent was systematically varied to

investigate its effect on reproducibility of the deposited film.It was evidenced that the pre-deposition

sonication time of the solution affects the quantity of the volatile solvent in the solution which

subsequently changessolution’s effective tan(δ), thereby affecting film quality as heating rate

changesduring irradiation. To affirm the impact of solution’s tan(δ), solvents with different tan(δ)

were mixed at different proportion before irradiation. The deposition rate varied from 10-120 nm/min

by increasing the sonication time (30-75 min). Moreover, it was evinced that high deposition rate

yields relatively rough and porous film with delamination tendency. Effect of solution loss-tangent

on the deposition rate of ferrite film deposited via MAS process is systematically investigated here

for the first time thus providing a strategy for tuning deposition rate via MAS process in general

while achieving desired film characteristics.

Keywords: Microwave-assisted solvothermal (MAS) process; loss-tangent; sonication time;

deposition rate


ICMM: 402 | Cryogenic Heat Treatment Process For D2 Steel & M2 Steel

N. Prabhu Kishore MLR Institute of Technology

[email protected], phone: +91 8297346385

Abstract

Cryogenic treatment has been recognized by a few methods for expanding apparatus life of

numerous cutting instrument materials, hence enhancing efficiency essentially. However genuine

components which ensure better instrument execution are as yet questionable. Concentrates on

cryogenically treated HSS instruments demonstrate microstructural changes in material that can

impact device lives. However little research has been done on other cutting apparatus materials.

Cryogenic treatment of carbides presently can't seem to be widely contemplated. This work expects

to contemplate the impact of cryogenic treatment on M2 and D2 steels. It is an extension for subzero

process and It is the latest technology. The objective of this lecture is to explain the basic

transformation of structures and the conversion of retained austenite into martensite and martensite

into tempered martensite which in turn include the properties like longer part life, minimize failure

because of cracking, enhanced warm properties, better electrical properties including less electrical

protection, lessened coefficient of friction, minimal creep and walk, enhanced evenness, and less

demanding machining. This retained austenite into martensite is the most important type of

transformation i.e. transformation requires diffusion for the changes in crystal structure to occur. The

effect of cryogenic process, subzero process, other heat treatment process and the types of heat

treatment furnaces structural changes in heat treatment process are studied.



ICMM: 403 | Electron Paramagnetic Resonance Studies Of Bi2O3-Li2O-As2O3-

B2O3 Glasses Doped With Vanadium

Kalyani B1,2, Navaneetha Pujari1,2 , Potharaju Krishna 1,, J. Chinna Babu3, Avula Edukondalu1,2*, C P. Vardhania

1Department of Physics, Osmania University, Telangana, 500007 India

2Department of Physics, Osmania University College for Women, Telangana,500095 India

3Department of Physics, Vivekananda Government Degree College, Telangana, 500044 India

*Corresponding author. Mobile: (+91) 9912052007; E-mail:[email protected] (Edukondalu)

Abstract

Electron paramagnetic resonance studies of the xBi2O3-(30-x) Li2O-10AS2O3-58B2O3 (where

x=5, 10, 15, 20 and 25 mole%) containing 2 mole% V2O5 as the paramagnetic probe were carried out

at room temperature. These glasses were prepared using conventional melt quenching. From the EPR

spectra, the spin-Hamiltonian parameters (SHP) of VO2+

ions, dipolar hyperfine parameter (P) and

Fermi contact interaction parameter (K), molecular orbital coefficients (α2 and γ

2), the number of

spins participating in the resonance (N), and susceptibility (χ) have been evaluated. Tetragonality

(Δg||/Δg) of V4+

ion sites exhibited nonlinear variation in the glass composition in all the glasses

studied. Further, the theoretical optical basicity of the glasses has also been evaluated and it is

observed that the changes in optical basicity values are in accordance with the changes in SHPs.

Keywords: Glasses, melt quenching, EPR, spin-Hamiltonian parameters, optical absorption.


ICMM: 404 | Thermal and Mechanical properties of Glass ionomer cement

G. Patrick1*, Mandava Sridhar2 and J. Kishore Babu3 1,2,3

Department of Physics, Gokaraju Rangaraju Institute of Engineering and Technology,

Bachupally, Hyderabad, 500090, India.

*G. Patrick. Mobile: (+91) 9849896189; E-mail: [email protected]

Abstract

Glass ionomer cement is used as a restorative material. This study evaluated some physical

properties such as specific heat, thermal conductivity, vickers hardness and breaking strength of

Glass ionomer cement (GC Fuji II - Tokyo). The specific heat and thermal conductivity were

determined using the principal of method of mixtures and Lee's apparatus respectively. Micro

hardness measurements were performed using a Vickers cum Brinell hardness tester and

measurement of breaking strength was carried out using a universal testing machine, operated at a

head speed of 10 mm per minute. Glass ionomer cement has several desirable properties such as high

specific heat, low thermal conductivity and thermal diffusivity apart from greater Vickers hardness

and breaking strength. In presence of these advantages it may be a cement of choice for filling of

cavities.

Keywords: Glass ionomer; Thermal conductivity; Vickers hardness

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ICMM: 409 | Convolutional Neural Networks For Dermis Canker Detection

CH. Kranthi Rekha, Dr. B.L. Prakash 1KL University, Vijayawada,, City, 522502, India

2Geethanjali College of Engineering and Technology, Medchal, 501301, India

*Corresponding Author. +919652307800, [email protected],

+919346314538,[email protected]

Abstract

Dermis canker detection is trivial task for medical practitioner in proper diagnosis. It is also

observed in literature that dermis canker images suffer from textural noise referred to as sparse

convolution noise. It is found that this noise representation and evaluation is a significant problem as

the noise effect should be detectable and solved. So noise removal should be procedural and fast to

implement. Hence its spectral content should be easily evaluated. This can be achieved by

representing the sparse convolution noise by proper and specific random process. In this paper sparse

convolution is described as a random process and represented using Poisson spectrum function.

Sparse noise is also anisotropic in nature. Some of the removal techniques are developed in this

paper. Sparse noise is easily removed by using hybrid method such as order statistics filter combined

with fuzzy neural networks (OSFN). The performance of this method is compared with various

conventional methods such as split Bregman algorithm etc. Peak Signal to noise ratio (PSNR), Mean

Absolute error (MAE), Mean square error (MSE) are the parameters used for testing performance

analysis of the proposed and existing methods.

Deep learning is an approach that makes computer to learn and gain knowledge through

practice. Deep learning also performs classification of data without involvement of human

interpretation. Deep learning is one form of neural network constituting several layers in the

architecture. Convolutional neural network (CNN) is the most commonly used beep learning neural

network. CNN uses large trained data set. CNN plays a significant role in feature extraction and

classification from a very large data set. For medical applications of image processing, it is essential

that the data produced at the system input should be without non-linearity and good in appearance.

Thus the proposed approach consists of the following steps.

1. Collecting database and training the neural network.

2. Pre-processing of data.

3. Feature extraction and classification.

Keywords: Convolutional networks; deep learning; GoogleNet; Artefacts.

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ICMM: 410 | Additive Manufacturing for VADs and TAHs - a Review

Anil Kumar Puppala1, Venkateshwarlu Sonnati2* 1Geethanjali College of Engineering and Technology, Hyderabad, 501301,India

2CVR College of Engineering, Ibrahimpatnam, 501510, India


Abstract

Heart disease or advanced heart failures is one of the serious causes of death. Due to

availability of low volumes of donor hearts, there has been an ongoing development of Mechanical

Circulatory Support (MCS): Ventricular Assist Devices (VADs) and total heart replacement by Total

Artificial Hearts (TAHs) for over 60 years [1].

Mechanical circulatory frameworks had seen three phases of advancement. The first

generation of MCS devices were largely mechanical devices and had pulsatility in their action, but

were highly cumbersome, unreliable due to small fatigue cracks and required an external pneumatic

power and control. Smaller and continuous flow devices are the second generation MCS devices.

Because of compact sizing they were suitable for implantations and were more durable than the first

generation devices. Problems like pump thrombosis prompted the development of non-contact, type

of devices leading to the development of third generation devices, where the pumps magnetically

levitate over a magnetic field and have no contact with the blood. Manufacturing of these

electromagnetic devices for implantation has to adhere to the constraints of space and weight [2-3].

With the advent of new Bio-materials, additive manufacturing is reportedly playing a significant role

in biomedical industry such as anatomical models for surgery training/planning, rehabilitation,

dentistry, customized implants, drug delivery devices, tissue engineering, and organ printing [4].

Cardiologists and Cardio surgeons reported complex and patient specific interventional and surgical

planning with the help of additive manufacturing techniques [5]. Additive manufacturing reported for

electromagnetic and electronic components had yielded considerably good performance [6]. The

authors had mathematically implemented a control algorithm for introducing pulsatile flow by

modulating the speed of a BLDC motor for VADs and TAHs. This paper explores the feasibility of

constructing VADs and TAHs using additive manufacturing techniques.

Keywords: Ventricular Assist Devices; Total Artificial Hearts, Additive Manufacturing.

Acknowledgements This work is funded by Jawaharlal Nehru Technological University Hyderabad under TEQIP – III

scheme.


ICMM: 411 | Onset of thermovibrational convection in a Nanofluid saturated

porousmedium

R.K. Brinda*

Bharathiar University, Coimbatore, 641046, India


Abstract

This paper addresses thermovibrational convection in a thin porous layer permeated by a nanofluid.

The criteria for the onset of convection are found when the layer is heated from the bottom . A

stability analysis based on the method of small perturbations is performed using normal mode

assumption. The critical values of the governing parameters are found with the help of the Mathieu

functions. The emerging instabilities of synchronous and subharmonic types and the transition

between them are examined.

Keywords: Convection; Porous medium; Instability.


ICMM: 413 | Graphene reinforces Asphalt- Doubles durability of Road

B.Jyothirmai1*, M.Haritha Kiranmai2, K.Vagdevi3

1,3. Associate Professor,Gokaraju Rangaraju Institute of Engineering &Technology,

Hyderabad -500043, India.

2.AssistantProfessor,Gokaraju Rangaraju Institute of Engineering &Technology,

Hyderabad 500043, India

*Corresponding Author. Mobile: (+91) 8885051534; Email:[email protected]

Abstract

Abstract. Graphene and its composites are now reinforced with asphalt a pavement material to

increase durability of roads. The present review paper focuses on improved performance of asphalt

material when mixed with graphene, reduced graphene oxide and graphene nanoplatelets. Graphene

is the world’s versatile wonder two-dimensional material with countless multifunctional applications

in electrical, physical, biomedical, chemical and in mechanical fields. High economical expenditure

in roads maintenance in all climatic conditions, high traffic loads, resistance to wear and tear are the

challenges for construction engineers. The objective of the paper is to bring awareness and

understanding of increased performance of asphalt when reinforced with graphene. Various

parameters like aging resistance, marshall stability and high temperature stability were reviewed in

the present study.

Keywords: Graphene, Asphalt, Marshall stability, Aging resistance

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ICMM: 421 | Effect of Li2O on electron paramagnetic resonance and

opticalabsorption studies of Cu2+ ions in arsenate boro-tellurite glasses

Navaneetha Pujari1,2*, Kalyani B1,2, Potharaju Krishna 1, J. Chinna Babu3, C P. Vardhani1 1Department of Physics, Osmania University, Telangana, 500007 India

2Department of Physics, Osmania University College for Women, Telangana, 500095 India

3Department of Physics, Vivekananda Government Degree College, Telangana, 500044 India


Abstract

Electron paramagnetic resonance and optical absorption studies of xLi2O-(30-x)TeO2-

10As2O3-60B2O3 glasses were made by introducing Cu2+

as spin probe. The EPR spectra of Cu2+

in

all the glass samples recorded in the X-band frequency have similar spectral features. The variation

in glass composition influences the spin Hamiltonian parameters calculated from the spectra. The

spin Hamiltonian parameters indicate that the Cu2+

ions are coordinated with six ligand atoms in a

distorted octahedron elongated along one of the axes and the ground state of the Cu2+

is dx2−y2 orbital.

The optical absorption spectra exhibited a broadband corresponding to d-d transition bands of Cu2+

ion. The values of bonding parameters indicate a covalent nature of the in-plane σ bonding and pure

ionic nature of the in-plane and out-of-plane π bonding. The theoretical optical basicity parameter

values were evaluated, and it was observed that the value of Γσ increases, whereas Γπ decreases with

the increase in optical basicity.

Keywords: Glass; Copper ion; Spin-Hamiltonian; Optical absorption; EPR studies


ICMM: 425 | XRD Investigation on Heat Treatment of High Chromium White

Cast Irons

Mbulelo Nqwase, Xiaowei Pan* Metallurgy Department, University of Johannesburg, Johannesburg, 2194, South Africa

*Mobile (+27) 083 456 3514, Email: [email protected]

Abstract

The properties of hypoeutectic iron of HCWCI containing 25 wt. %Cr-2.5 wt. %C were

investigated after destabilisation heat treatments, cooling (slow and fast cooling) to ambient

temperatures, their influence on the structure and hardness was investigated using X-ray diffraction,

element distribution analysis and hardness tests with 28 references. The experimental results show

that appropriate heat treatments contribute to a significant improvement on the mechanical properties

of selected alloy of HCWCI. The results are discussed in terms of the change in volume fraction of

retained austenite phase at the different destabilisation heat treatment temperatures.

Keywords: white cast iron; high chromium white cast irons; (Cr,Fe)7C3 carbides; secondary (Cr,Fe)23C6

carbides.

Reference

1. F. Nyokong and X. Pan, “A Review on Usage of High Chrome White Cast Irons in South

Africa,” Tamil Nadu, India, 2019.

2. T. X. L. D. Y. H. B. a. D. K. Chung R. J., “Microstructure Refinement of Hypereutectic

High Chromium Cast Irons Using Hard Carbide-Forming Elements for Improved Wear

Resistance,” Science Direct, vol. 301, pp. 695-706, 2013.

3. C. Mahlami and X. Pan, “Main challenges and developments of high manganses steel

castings based on service life,” 71st World Foundry Congress, Bilbao, Spain, 2014.

4. C. Mahlami and X. Pan, “An overview of high manganese steel casting,” 71st World

Foundry Congress Bilbao, Spain, 2014.

5. G. Nelson, “Influence of Microstructure on the Corrosion and Wear Mechanisms of High

Chromium White Irons in Highly Caustic Solutions,” Dissertation / School of Mechanical

Engineering, Adelaide, South Australia , 2010.

6. C.S Mahlami; X Pan, Mechanical properties and microstructure evaluation of manganese steel alloyed with vanadium, FCSPTC international conference, Andhra Pradesh, India, 2017, pp227-236.



ICMM: 428 | An Experimental Study on the Ballistic Behavior of a High

Strength Low Alloy Steel against High Hardness Steel Projectiles

Pradipta Kumar Jena1*, K Siva Kumar 1

1Defence Metallurgical Research Laboratory, Hyderabad-500058, India


[email protected]

Abstract

Armour materials are important in defence applications for providing protection against different

threats. Quenched and tempered high strength steels are the primary choice for armour in battle tanks

and armoured vehicles. Understanding the penetration mechanism of projectiles in to the target plate

during ballistic impact plays a crucial role in the design and development of any armour. This paper

presents the ballistic performance of high strength low alloy armour steel against high hardness steel

projectiles of 7.62 mm and 12.7 mm caliber at normal angle of impact.The deformation mechanism

of the target material against both type of projectiles have been analyzed. Main interests are focused

on the microscopic observations and micro-hardness measurements adjacent to the crater holes

formed by the impact of both types of projectiles. It is observed that the extent of material

deformation increases with higher caliber of the projectile. Microstructural analysis of the crater

region exhibits material deformation along with shear band induced cracking. The ballistic behavior

of the steel is compared with the ballistic behavior of rolled homogeneous armour steel.

Keywords: High strength low alloy steel; Ballistic evaluation; Adiabatic Shear bands.

Acknowledgements

The authors wish to acknowledge DRDO, Government of India for financial support and The

Director, DMRL for his encouragements to carry out this work.




ICMM: 502 | Application and Evaluation of Properties of Ethylene

AcrylicAcid Co-Polymer on Cotton Fabrics using Exhaust and Pad-Dry-Cure

Finishing Methods

Dr. Gurumurthy.B. R1*

1 Assosicate Professor- Textile Technology, #235/2, 2

nd D cross, 6

th Main, 3

rd Block, 3

rd

Stage, Basaveshwaranagar, Bangalore – 560079, Karnataka, India


Abstract

Ethylene acrylic acid co-polymer is a water-based polymer coating solution is used on cotton

bleached fabric [Fig 1]. The polymer coating solution is applied by roller method as well as by

exhaust method. The developed fabric is then cured and dried in an oven with a temperature ranging

from 60-90oC.Fabric stiffness properties is an important property that influence the drape of the

fabric. In this research work, the scanning electron micrographs of coated fabrics are captured to

ascertain the changes that occur after coating with ethylene acrylic acid co-polymer solution.

Thermal properties of these coated fabrics are analyzed using their DSC thermographs. The

composition graphs and finger print output of ethylene acrylic acid polymer coating is also analyzed

using FTIR results. The results of mechanical fabric stiffness properties of coated fabrics show

increased stiffness and good thermal properties in fabric after application of coating solution.

Fig 1: Materials used for surface treatment of cotton fabrics using ethylene acrylic acid co-polymer solution

KEYWORDS: Functional Textiles, Ethylene acrylic acid co-polymer, Stiffness property, Thermal

properties of fabrics, DSC thermographs

Ple



ICMM: 508 | Structural and optical properties of BaTiO3 Nano particles

E. Janardhan1, M. Maheshwar Reddy1, G. Raj Kumar1 and M. Jaipal Reddy*2

1Sreenidhi Institute of Science and Technology, Yamnampet, Ghatkesar, Hyderabad-501301

Telangana, India 2Palamuru University Bandameedipally, Mahbubnagar-509001, Telangana, India.


Abstract

The rapid growth of the electronic component industry has led to a demand for Miniature multilayer

ceramic capacitor (MLCC), where BaTiO3 is used due to its superior frequency characteristics,

higher reliability, high breakdown voltage, excellent volumetric efficiency of the capacitance and

reduced cost. MLCCs with a dielectric thickness of 2 µm have already been commercialized but the

next generation components demand a thickness of 1 µm. Such requirement demands dielectric

powders with uniform composition and size distribution, and weak agglomeration to allow low

temperature sintering with minimum grain growth. Various methods of preparation of BaTiO3 are

available in the literature.

The Solid state reaction of BaTiO3 formation from a mechanically Activated BaO-TiO2

system has been investigated. A simple soft chemical method of synthesizing barium titanate nano

powders is described here, which is simple and cost effective, where titanium dioxide was taken as a

source of titanium, and BaO was obtained by Solution combustion synthesis of Ba(NO3)2 and

CH4N2O (as a fuel). An equi molar mixture of BaO and TiO2 powders was activated in a planetary

ball mill in a continual regime for 0, 30, and 90 min, and treated at a speed of 300rpm. The effect of

the milling on the phase formation was investigated by XRD method, EDAX, Particle Size Analyzer,

SEM, UV Visible Spectroscopy and Raman Spectroscopy.

Keywords: Ba(NO3)2 and CH4N2O (as a fuel), XRD, EDAX, SEM, UV Visible Spectroscopy and

Raman Spectroscopy, ball milling method.

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author.



ICMM: 512 | Deflection and Buckling Analysis of Laminated Hybrid

Composite Plates

D. Dhanunjaya Raju1*, Shashank2 1Assistant Professor, Department of Mechanical Engineering, Sri Vasavi Engineering

College (A), Pedatadepalli, Tadepalligudem, 534101, India 2M.Tech Student, Department of Mechanical Engineering, Godavari Institute of

Engineering and Technology(A), Rajahmundry, 533296, India

*Corresponding author. Mobile: (+91) 739694591

Email:[email protected]

Abstract

Composite Materials are most commonly used in aerospace applications due to its light

weight and high strength. Manufacturing and testing of this composite material are expensive. The

analytical methods are best alternative for this problem. In this analysis simply supported composite

plate analytical procedure was implemented to evaluate the deflections and stresses. Composites are

good at tensile properties and weak in compressive properties. So, there is a need in evaluating the

buckling strength of the composite plate. The buckling strength of the composite plate was evaluated

by varying the lamination orientation and lamination sequence. In this analysis Graphite/epoxy,

Glass/ epoxy and Kevlar Epoxy lamina properties are considered. Lamination scheme and fiber

orientation play a vital role on deflection and stresses. Buckling load is maximum when the graphite/

epoxy layers are at the middle. A parametric study was carried to know the bending and buckling

behaviours of the Hybrid composite plates

Keywords: Simply supported Plate; Laminated Composites; hybrid Composites; Static Analysis;

Bucking analysis


ICMM: 513 | Static and Dynamic Analysis of Quasi Isotropic CompositePlates

Excited by Piezoelectric Actuators with Variable ThicknessRatios

D. Dhanunjaya Raju1*, V.V. Subba Rao2 1Full Time Ph.D. Research Scholar, Department of Mechanical Engineering, UCEK,

Jawaharlal NehruTechnological University Kakinada, Kakinada, 533003, India 2Registrar & Professor, Department of Mechanical Engineering, UCEK, Jawaharlal

Nehru Technological University Kakinada, Kakinada, 533003, India


Abstract

Piezoelectric materials are mostly used as sensors and actuators, due to the quick response property,

excellent coupling effects and these are highly embeddable. Smart structures can control the

deflections and vibrations as per design criteria without increasing the density of the composite plate.

In this study, Quasi - Isotropic laminated hybrid composite plates are excited by the embedded

piezoelectric actuators on both sides of the composite plate. An analytical formulation was developed

to evaluate the deflections and Vibration amplitudes under static, dynamic loading conditionsand the

results are validated with the published results.The deflections and vibration amplitudes are

evaluated by varying the size,location and thickness of the piezoelectric Actuator and observed that

the deflections are varying linearly with the size of the piezoelectric actuator and applied voltage.

Variations of the thickness ratio of the plate and piezoelectric actuators play a vital role.A parametric

study was carried to know the static and dynamic responses of quasi-isotropic laminated hybrid

composite plates

Keywords: Simply Supported plates; piezoelectric actuators; deflection analysis; vibration analysis,

Quasi Isotropic plates; Variable Thicknesses Ratios.

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ICMM: 516 | A Review on Formability Tests for Sheet Metal Forming

Operations

A.C. Sekhara Reddy1*, S. Rajesham2, P. Ravinder Reddy3

1Research Scholar, Osmania University, Hyderabad,500013, India

2Dept. of Mechanical Engineering, RGUKT-Basar, 504107,Telangana, India

3Dept. of Mechanical Engineering, CBIT, Hyderabad, 500075, Telangana, India


Abstract

The knowledge of mechanical behaviour of sheet metal such as formability in stamping operations is

very much essential for quality manufacture of articles having wide applications in automobile,

beverage, aerospace, kitchenware etc. Different tests are available and proper selection of formability

tests matching with the component to be produced is very much essential. By thorough

understanding of all the available tests helps the craftsman to reduce production time and cost

involved in it by reducing the rejections. This paper provides an insight about different formability

tests applicable to sheet metal forming using aluminium and other materials ductile materials.

Keywords:Deep Drawing; LDH test; Erichsen test; Limiting drawing ratio; Olsen test

Acknowledgements The author would like to thank Dr. Suresh Akella, Principal and the management of Sreyas Institute

of Engineering and Technology for supporting in creating the research facilities for metal forming

tests in the Department laboratories.

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author.


ICMM: 523 | Polypyrrole/NiO hybrid nanocomposites: Structural,

morphological, optical and electrical studies for optoelectronic device

applications

Hajeebaba K Inamdar1,2, Sasikala. M3, M.V.N. Ambika Prasad1*

1Department of PG Studies and Research in Physics, Gulbarga University Gulbarga-585105, India.

2Department of Physics, J.B Institute of Engineering and Technology,R.R Dist, Hyderabad-

500075. 2Department of EEE, Godutai Womens f Engineering College, Sharana nagar, Kalaburagi, India 585103

* Corresponding author. Tel.: +91 9448405817.

E-mail:[email protected] ,[email protected] and [email protected]

Abstract

Polypyrrole (PPy)/nickel oxide (NiO) hybrid nanocomposites (NCs) were synthesized by

means of in-situ polymerization course. The Ppy/NiO mixture NCs were studied for structural,

morphological, optical and electrical investigation. The basic and optoelectronic properties of

Ppy/NiO hybrid NCs are very unique in relation to those of pure PPy and NiO nanoparticles (NPs),

which were ascribed to the strong cooperation between the PPy and NiO NPs. The XRD profile

demonstrates that wide peak of PPy getting to be weaker on enhancing the NiO NPs concentration in

the Ppy/NiO hybrid NCs.Similarly, the diffraction peaks of NiO NPs in Ppy/NiO (10-50 wt %) NCs

were found to shift towardslower 2θ values.The diffuse reflectance spectral studies revealed that

there is an increase in energy band gap with increase of NiO NPs concentration in Ppy matrix. FTIR

spectra of Ppy/NiO hybrid NCs, uncovered that the key absorption at 1204 cm-1

and 1559 cm-1

are

influenced by the existence of NiO NPs in pure Ppy and get shifted to 1216 cm-1

and 1570 cm-1

respectively and demonstrates, in addition of NiO NPs in the Ppy/NiO hybrid NCs. The

morphological studies that with increase in NiO NPs concentrations, there is an increase of NiO

deposition on Ppy matrix. The photoluminescence (PL) studies revealed that the prepared NCs

exhibit blue color emission. The average correlated color temperature (CCT) value was found to be

around ~ 9240 K which indicates the prepared NCs can be used for as coating material in cool light

emitting diodes (LEDs). Further, the room temperature (RT) AC electrical conductivity is observed

to be enhanced from 1 x10-4

to 5 x 10-4

(S/cm)-1

as the NiO NPs concentration increased from 10 to

50 wt% in the Ppy/NiO hybrid NCs. The results clearly indicate that the present NCs were

effectively used in the fabrication of electrochemical storage and LED device applications.

Keywords: Polypyrrole; nanocomposites; diffuse reflectance; color diagrams; TEM



ICMM: 524 | Green fabrication of Co3O4/Polypyrrole nanocomposites:

Structural, Morphological and DC conductivity studies

Hajeebaba K Inamdar1,2, Sasikala. M3, M.V.N. Ambika Prasad1*

1Department of PG Studies and Research in Physics, Gulbarga University Gulbarga-585105, India. 2

Department of Physics, J.B Institute of Engineering and Technology,R.R Dist, Hyderabad-

500075. 2 Department of EEE, Godutai Engineering College for Women,, Sharana nagar, Kalaburagi, India 585104

* Corresponding author. Tel.: +91 9448405817.

E-mail:[email protected] , [email protected] [email protected]

Abstract

Polypyrrole (PPy)/Cobalt oxide (Co3O4) hybrid nanocomposites (NCs) were synthesized by

means of in-situ polymerization using Cobalt nitrate as metal precursor, Polypyrrole as polymerizing

agent and Aloe-Vera (A.V.) gel as a fuel. The prepared nano composites were characterized by

different characterization techniques such as Powder XRD, SEM and TEM. The electrical properties

of PPy/Co3O4 hybrid NCs are very unique in comparison to the pure phases, PPy and Co3O4

nanoparticles (NPs), which were ascribed to the interaction between the PPy and Co3O4 nano

particles. DC conductivity is observed to be enhanced as the Co3O4 NPs concentration increased

from 10 to 50 wt% in the hybrid NCs at the different temperature. From the obtained measurements

and data, the synthesized hybrid nano composites may be used in electronic device applications such

as LED devices, solar cells and optical devices.

Keywords: Polypyrrole; nanocomposites; DC conductivity; SEM; TEM



ICMM: 526 | Green Synthesis of Co3O4/Polyaniline nanocomposites:

Structural, Morphological and conductivity studies

J. Venkatreddy1,4, Narsappa6, Pallati Naresh3, B Lavanya5, M.V.N. Ambika Prasad7,

kamatam Hariprasad2, N.Sundraganeshan4 , Hajeebaba K Inamdar1,*

1. Department of H&S, J.B Institute of Engineering and Technology, R.R Dist, Hyderabad-500075.

2. Department of H&S, Institute of aeronautical Engineering, R.R Dist, Hyderabad-500043.

3. Departments of Physics, University College of Science, Saifabad, Osmania University, Hyderabad-500004

4. Departments of Physics, Annamalai University, Chidambaram (TN) -608002

5. Department of H&S, Anurag Group of Institutions, Medchal Dist, Hyderabad-500 088.

6. Department of ECM, J.B Institute of Engineering and Technology, R.R Dist, Hyderabad-500075.

7. Department of P.G Studies and Research in Physics, Gulbarga University, Gulbarga-585105, India.

* Corresponding author. Tel.: +91 9740441073. E-mail address:[email protected]

Abstract

Polyaniline (PANI)/Cobalt oxide (Co3O4) hybrid nanocomposites (NCs) were synthesized by

means of in-situ polymerization using Cobalt nitrate as metal precursor, Polyaniline as polymerizing

agent and Aloe-Vera (A.V.) gel as a fuel. The prepared nano composites were characterized by

different characterization techniques such as Powder XRD, SEM and TEM. The electrical properties

of PANI /Co3O4 hybrid NCs are very unique in comparison to the pure phases, PANI and Co3O4

nanoparticles (NPs), which were ascribed to the interaction between the PANI and Co3O4 nano

particles. DC conductivity is observed to be enhanced as the Co3O4 NPs concentration increased

from 10 to 50 wt% in the hybrid NCs at the different temperature. From the obtained measurements

and data, the synthesized hybrid nano composites may be used in electronic device applications such

as LED devices, solar cells and optical devices.

Keywords: Polyaniline; nanocomposites; DC conductivity; SEM; TEM


ICMM: 527 | Comparative studies of self-compacting geopolymer concrete

andconventional concrete subjected to corrosion and chloride ingression Krishneswar Ramineni1*, Manikanteswar Ramineni2, Mahesh Reddy Y3, Dr. BNarendra

Kumar4 1Graduate Student, Texas A&M university, College station,77840,USA

2EIT,College station,77840, USA

3Graduate engineer, Hyderabad, 500072, India

4Professor,VNRVJIET, Hyderabad, 500090, India


Abstract

Geopolymer concrete is a special concrete developed to reduce the carbon-dioxide emission

and to provide a solution for industrial waste. The Geopolymer Concrete consist of industrial by-

products (which contains more Silica and Alumina) which are activated with the help of Alkaline

solution (combination of sodium hydroxide & sodium silicate or potassium hydroxide & potassium

silicate). The high viscosity nature of Geopolymer Concrete had the ability to fail due to lack of

compaction. In improvising the issue, Self-Compacting Geopolymer Concrete (SCGPC) has been

introduced. The SCGPC doesn't require any additional compaction, it can flow and gets compacted

by its own weight. This paper presents an experimental investigation aimed at measuring chemical

durability of self-compacting geopolymer concrete (SCGPC) which is developed and cured at

ambient conditions. For that purpose, the SCGPC specimens are subjected to corrosion and chloride

ingression by conducting accelerated corrosion test (ACT) and rapid chloride penetration test

(RCPT). In the present study, the SCGPC is developed by using Fly ash, GGBFS activated with

alkaline solution as a cement substitute and the tests results are compared with conventional

concrete. From experimental results, it is found that SCGPC is has better resistance against corrosion

and chloride ingression than conventional concrete proving that it can be a better replacement for

present concrete materials in the construction industry.

Keywords:alkaline activated; corrosion test; self-compacting.

Acknowledgements

I would like thank VNRVJIET civil engineering department for the infrastructure they provided for

the project and would like to express my gratitude to Sri M.Siva Prasad for helping us in testing and

my project teammates Vooha Chowdary C and Abhilash K for their help in project.



ICMM: 532| Thermal degradation study for manufacturability of

Polyetheretherketone/Hydroxyapatite bone implant composite

Sivakoti Shyam Kumar1*, Rahul Chhibber2, S. Saptagiri3 1Faculty of Mechanical Engineering, Geethanjali College of Engineering and

Technology, Hyderabad, 501301, India 2Faculty of Mechanical Engineering, Indian Institute of Technology, Jodhpur,Karwar,

342037, India 3Faculty of Mechanical Engineering, Geethanjali College of Engineering and

Technology, Hyderabad, 501301, India


Abstract

Polyetheretherketone (PEEK) is a semi-crystalline, high temperature resistant, FDA approved

polymer, attracted many engineering and medical research practitioners due to its excellent

mechanical and biological properties. PEEK has comparable mechanical properties to natural bone

and its polymeric constituent Collagen [1]. PEEK has been identified as one of the high

temperature(Tm= 373oC) polymers with excellent thermal, chemical and radiological inertness. High

temperature resistance, good Young’s modulus and biological inertness of PEEK attract it to be a

prominent bone implant material. Metallic bone implants have been surpassed slowly by PEEK

composites. However, PEEK is found to be inferior in rigidity to natural bone due to its limited

Young’s modulus. Hydroxyapatite (Ca10(PO4)6(OH)2), a bone inductive [2] and ceramic

reinforcement is extracted from egg shells [2,3] by thermal processing to strengthen PEEK matrix of

the proposed bone composite. Upon several delimiting studies, ceramic constituent is limited to 40%

by weight. The combination of constituents being newer, an exhaustive study on thermal stability of

the composite has been carried out at ARCI, IICT and KELVN Hyderabad. Thermal gravimetric

analysis (TGA), Derivative thermo gravimetric analysis (DTG) and Differential Scanning

Calorimetry (DSC) were the sources of analysis. TGA, DTG and DSC have been used to evaluate

percentage of weight loss, peak degradation temperature and melting temperature respectively.

Degradation of the composite was found to increase with the percentage of PEEK in the composite.

The study has been conducted beyond the melting temperature of the PEEK and up to 600oC.

Degradation of the composite has been showing an inverse relation with rate of heating. Maximum

percentage of mass degradation 28.7% of the total weight was recorded in structurally superior

PEEK/HA 80/20 composite at a rate of heating 10C/ min as against 33.9% in pure PEEK.

Keywords: Hydroxyapatite; PEEK; Bone implants;

Acknowledgements

I would like to express my deep gratitude toDr. Roy Johnson, Scientist-G and Associate Director,

ARCI –Hyderabad and Dr Y Srinivasa Rao, Scientist F, Centre for ceramic processing, ARCI-

Hyderabad for their timely help in my active research on this topic.

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ICMM: 534 | Studies on mass attenuation coefficient, effective atomic

number andelectron density of some low Z materials in the energy range

0.122 to 1.330 MeV

Vishwadip V. Khosepatil, Sagar S. Ghuge, Ruchita P. Solanke, Sanjay R. Dipke, Pravina P. Pawar

Department of Physics, Dr.Babasaheb Ambedkar Marathwada University, Aurangabad:

431 004. India.

*Vishwadip V. Khosepatil. Mobile: (+91) 9011876232; E-mail:

[email protected]

Abstract

The total mass attenuation coefficients of some low Z materials, such as Polymethyl

pentane(C6H12), Poly (phenylene oxide)(C8H8O), Poly(propyl methacrylate)(C7H12O2), Poly(ethylene

isophthalate)(C10H8O4), Poly(butylene terephthalate)(C12H12O4), Poly(ether sulphone)(C12H8O3)

were measured at 122, 356, 511, 662, 1170, 1275 and 1330 keV photon energies using a well-

collimated narrow beam good geometry set-up. The gamma -rays were detected using NaI (Tl)

scintillation detection system with a resolution of 10.2% at 662keV.The attenuation coefficient data

were then used to obtain the effective atomic numbers (Zeff) and effective electron densities (Neff) of

low Z materials. It was observed that the effective atomic number (Zeff) and effective electron

densities (Neff) tend to be almost constant as a function of gamma-ray energy. The results show that,

the experimental values of mass attenuation coefficients, effective atomic numbers and effective

electron densities are in good agreement with the theoretical values with less than 1% error.

Keywords: Mass attenuation coefficients; Atomic cross-section; Electronic cross-section; effective

atomic number; Effective electron density, scintillation detection system.

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ICMM: 536 | Influence of Elevated Temperature on Flextural Strength of

Polysialate Composite

S. Sapthagiri1*, Sivakoti Shyam Kumar2 1Faculty of Mechanical Engineering, Geethanjali College of Engineering and Technology,

Hyderabad, 501301, India 2Faculty of Mechanical Engineering, Geethanjali College of Engineering and Technology,

Hyderabad, 501301, India


Abstract

Polysialate composites are a new class of high performance materials due to their excellent

inherent high temperature resistance, low density and ease of manufacturing. These properties also

suggest that polysialate composites have a high temperature resistance, environmental friendliness,

light weight suitable for structures of both aerospace and motorsport applications. The foremost

requirements of these applications are high temperature resistance, low density, good structural

properties and ability to form complex geometries at low lead times. The polysialate matrix based on

polymineral resins, has ease of manufacturing using conventional polymer composite lay-up, and

allowing complex geometries to be fabricated. The most widely used polysialate matrix materials

reinforced with silicon carbide fibres material havebeen studied in this work for their flexural

strength over a representative temperature range. The three point bending test simulation analyses

were performed according to ASTM standard on these polysialate composites. The simulation

analysis results revealed that flexural strength of polysialate composites were stable over a

representative temperature range of 200OC to 600

OC.

Keywords: Polysialate composites; flexural strength; three point bending test.

Acknowledgements

We heartily thank the management of Geethanjali College of Engineering and Technology,

Hyderabad for their cooperation and support related to this research work as well as technical staff

members who are directly and indirectly extended help to carry out experimental work.


ICMM: 537 | Thermal and Elastic Properties of Mixed Alkali Tungsten

Tellurite Glasses

Avula Edukondalu1,2*, Salavadi Stalin1, Ch. Srinivasu3, Syed Rahman1, K. Siva

Kumar1 1Department of Physics, University College of Science, Osmania University, Hyderabad, India

2Department of Physics, University College for Women, Koti, Hyderabad, India

3Department of P&C, MGIT, Gandipet, Hyderabad, India.

*Corresponding author. Mobile: (+91) 9912052007; E-mail:[email protected] (Edukondalu)

Abstract

Glass with composition xLi2O-(30-x)K2O-10WO3-60TeO2 with 5 ≤ x ≤25 have been

prepared by conventional melt quenching technique. The amorphous phase of the prepared glass

samples was conformed from their X-ray diffraction and SEM studies. In the present work, the

mixed alkali effect (MAE) has been investigated in the above glass system through density and

modulated DSC studies. The density and glass transition temperature of the present gasses varies

non-linearly, the exhibiting the mixed alkali effect. The parameters glass transition temperature (Tg),

changing in the transition temperature (ΔTg) and specific heat capacity difference (ΔCp) in the glass

transition temperature range was measured. The elastic moduli and Debye temperature were

calculated in terms of Makishima–Mackenzie model.

Keywords: Mixed alkali effect, tungsten tellurite glasses, density, glass transition temperature,

Makishima–Mackenzie model.



ICMM: 543 | Electrical Properties of the Ni/ polyvinyl alcohol/n-Si

heterojunction with polymer interlayer

V. Manjunath1*, G. Manjunatha2, and P. Ananda2 1Department of Physics, Sri PadmavatiMahilaVisvavidyalayam (Women’s University), Tirupati, A.P, India-

517502 2Department of Physics, Madanapalle Institute of Technology and Science, A.P, India-517325

Corresponding Author: [email protected]

Abstract

The Electrical properties and transport mechanism of the Ni/polyvinyl alcohol (PVA)/n-Si

metal-insulator-semiconductor (MIS) type heterojunction was investigated by the I-V measurements

at room temperature. The evaluated result of MIS heterojunction has a higher rectification ratio with

low leakage current compared with Ni/n-Si metal-semiconductor (MS) junction. The calculated

barrier height of MIS type heterojunction [0.80 eV (I-V)/0.88 eV (Cheung’s)/0.81 eV (Norde’s)]

increases compared with the MS junction [0.70 eV (I-V)/0.74 eV (Cheung’s)/0.72 eV (Norde’s)].

The ideality factor values were evaluated using thermionic emission theory and were found to be

1.09 for the MS junction and 1.35 for the MIS type heterojunction. The series resistance (RS),

ideality factor values extracted for the MS junction and MIS type heterojunction using Cheung's

functions were calculated to be 171 Ω, 1.24 and 3345 Ω, 1.43. The series resistance values were also

extracted from H (I) versus I plot and were found to be 459 Ω for MS junction and 15669 Ω for the

MIS heterojunction. Furthermore, the surface potential versus forward voltage curves of the MIS

heterojunction yielded a Schottky barrier height of 0.77 eV which is higher than 0.68 eV attained for

the MS junction. In conclusion, it was elucidated that the intentionally deposited PVA(Polymer)

insulating layer at the interface of Ni/n-Si it is influenced the electrical properties of the fabricated

Ni/PVA/n-Si MIS type heterojunction.

Keywords: PVA insulating layer; heterojunction Barrier height; Ideality factor; Series resistance;

Surface potential.


ICMM: 546 | Investigation on the microstructure and mechanical properties

of W-Cu composites prepared by sintering and infiltration

U. Ravi Kiran1, G. Prabhu2, T.K. Nandy3 1 Scientist-E, DMRL, Hyderabad, 500058, India

2Scientist-E, DMRL, Hyderabad, 500058, India

2Scientist-H, DMRL, Hyderabad, 500058, India


Abstract

W–Cu composites are multi-functional materials which are widely used in arcing tips, resistance

welding electrodes, electrode materials for electro discharge machining, heat sink materials for

microelectronics packaging, power generation systems and defence applications such as Jet vanes

and nozzles in missiles. These groups of composites combine the high hardness, hot strength and

wear resistance of tungsten with the outstanding electrical and thermal conductivity of copper.

Generally, these composites are produced by copper infiltration of tungsten performs. The process

involves sintering tungsten at temperatures ranging from 1600-1700 °C in order to get porous block

followed by infiltration with copper. In the present study, a new process was adopted with an aim to

obtain pore free W-Cu composites. Pure tungsten powders with an average particle size of 2-5 µm

was used to synthesize tungsten-copper composites. The compaction pressure and sintering

temperature were standardized to obtain desired density of tungsten, ensuring interconnectivity of

pores. Sintered porous tungsten was infiltrated with oxygen free copper at 1300 °C in hydrogen

atmosphere for 1 h. Results showed that near full density composites were obtained after the

infiltration. Mechanical properties such as tensile, hardness, compression and flexural strength were

evaluated. These results are analysed based on density, microstructure and machinability.

Keywords: Tungsten, infiltration, sintering, mechanical properties.

Acknowledgements Authors would like to acknowledge DRDO for funding out the experiments.

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ICMM: 548 | Sliding wear characteristics of epoxy-glass composites

reinforcedwith micro B4C

Z. Shanti Kiran*, V. Suresh Babu, V. Sri Ram, M. Kameswara Reddy

*National Institute of Technology, Warangal, 506004, India


Abstract

Epoxy/glass composites reinforced with micro boron carbide (B4C) made by hand lay-up method.

The effect of micro B4C powder on dry sliding wear behaviour of epoxy/glass composites was

studied. Taguchi method was used to design the experiments and analyse the results. Incorporation of

B4C filler resulted in improvement of wear resistance of composites by 25.9%. The percentage

influence of selected composite parameters are 28%, 70.97%, 0.82% respectively, for filler content,

fiber volume percentage, and fiber orientation. The deformation mechanisms under dry sliding wear

were investigated using SEM photographs. The study of effects of selected machine parameters i.e.

load, speed, and sliding distance on weight loss of composite consisting of 2.5 wt% of B4C, 31.5

vol% of glass fiber, and 45˚ fibers orientation revealed that there is 53.19%, 27.81%, 15.60%

influence on wear loss.

Keywords: Epoxy-glass composites; boron carbide; sliding wear, Taguchi method, ANOVA

Acknowledgements We acknowledge and give credit to MHRD for this research work carried out in NIT Warangal.


ICMM: 549 | STUDY OF IONIC CONDUCTION MECHANISM IN PEO+PVdF

BASED POLYMER BLEND ELECTROLYTES COMPLEXED WITH NaClO4

Kiran Kumar Ganta1*, Venkata Ramana Jeedi1, K. Vijaya Kumar2 and E.

Laxmi Narsaiah1

1Department of Physics, B V Raju Institute of Technology, Narsapur, Medak-502313,

India 2Department of Physics, JNTUH College of Engineering Sultanpur, Sultanpur (V), Pulkal

(M), Sangareddy-502273, India


Abstract

Solid polymer electrolyte films based on polymer blend of Poly (Ethylene Oxide) (PEO) and Poly

(VinylideneFluoride) (PVdF) complexed with sodium perchlorate (NaClO4) salt have been prepared

using solution cast technique. The complexation of NaClO4 salt with polymer blend of PEO and

PVdF has been confirmed by X-Ray diffraction (XRD) and Fourier Transform Infrared Spectroscopy

(FTIR). The melting temperatures were measured by Differential Scanning Calorimetry (DSC). The

surface morphology was studied by Scanning Electron Microscopy (SEM). We observed that the

addition of a small amount of PVDF in the PEO host polymer enhances the ion – polymer interaction

leading to more ion dissociation. As a result, the effective number of mobile charge carriers within

the polymer matrix increases. The DC ionic conductivity studies have shown the maximum

conductivity 9.77X10-4

S/cm for the polymer blend 0.8PEO + 0.2PVDF complexed with 5 wt. %

NaClO4.

Keywords: DSC, FTIR, PEO, PVdF, Polymer blend, SEM, XRD.

Acknowledgements

The authors wish to express their sincere thanks to JNTUH for the financial support through the

project JNTUH/TEQIP-III/CRS/2019/Physics/04.

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ICMM: 602 | Investigation of Various Phases of Fe-Co-Si layerSynthesized in

Si by Fe and Co Dual Ion Implantation

Satyabrata Singh 1, Wickramaarachchige J. Lakshantha1, Bibhudutta Rout 1* 1 Department of Physics, University of North Texas, Denton, TX, 76203, USA

*Corresponding author. Mobile: (+1) 940-765-9150; E-mail: [email protected]

Abstract

Ion beam synthesis technique is used as one of the important tools for synthesis and processing of

nanostructures used in semiconductor device industries. The major challenge is not only to make the

devices smaller in size but also to optimize the synthesis process. Subsequent modification and/or

doping of these nanostructures (e.g. semiconductor nanowires) using low energy (kilo-electron-volt,

KeV) ion beams can significantly enhance their functional (optical, electronic and magnetic)

properties. These properties can strongly differ from the respective bulk counterparts due to the high

surface-to-volume ratio of the nanostructures. Ternary intermetallic compounds involving Fe and Co

are the most interesting due to their unique crystallographic structures and chemical phases. These

compounds exhibit remarkable magnetic, electronic and thermal properties. Various alloy thin films

involving Fe, Co, and Si have been formed using the chemical vapor deposition method. However,

there is not much research done on the synthesis of self-assembled Fe-Co-Si alloy Nano system using

ion implantation. In this study, we will be reporting the simulated and experimental results of 50 keV

energy Fe and Co ion irradiated Silicon wafers at various fluence. The simulation result shows that

for 50 keV ion-implanted in Si, both the Fe and Co ion concentration is saturated at a fluence of

2×1017

atoms/cm2 and higher. The Synthesized samples were annealed at different temperatures to

obtain various Fe-Si phases. The results show that for lower annealing temperature, Iron rich phases

are formed but for higher annealing temperature Iron based silicides are formed. We will report the

results from the subsequent implant of Fe and Co both at 50 keV [1]. We will also report the X-Ray

diffraction (XRD), Scanning Electron Microscope (SEM), and X-ray Photoelectron Spectroscopy

(XPS) measurements of the implanted substrate both as-implanted and after thermal annealing in

order to investigate the formation of various crystal structures in Silicon. We will report the results of

the similar dual ions implant in Si nanowire. Implanting ions into nanowires can modify their

properties and annealing the implanted nanowire at different temperatures can facilitate the formation

of various alloys in the nanowire. Finally, in this study, we will report the output results of various

ion-solid interaction simulation codes for Fe or Co ion-implanted into Si nanowires, which can be

utilized for the synthesis of ternary metal-silicon alloy nanostructures.

Keywords: Ion Implantation; Nano System; XRD; Thermal Annealing; XPS.

Acknowledgements: We would like to thank UNT High-Performance computing center

(https://hpc.unt.edu/) for providing computing time for the simulation.

https://hpc.unt.edu/


ICMM: 604 | Experimental Study of Parameters of P-20 Steel on CNC milling

machine

M Vishnu Vardhan1*, Chinmay P Mohanty2, B Dhanraj1 1Dept of Mechanical Engineering, Vardhaman College of Engineering, Shamshabad,

Hyderabad-501218, India 2School of Mechanical Engineering, VIT University, Vellore, Tamil Nadu-632014


Abstract

Milling is the most common form of machining process used in the production of

moulds/dies, due to the high tolerances and surface finishes by cutting away the unwanted material.

The selection of Pre-hardened steel (P-20) is widely used in production of moulds/dies because of

less wear resistance and are used for large components. Due to extensive use of highly automated

machine tools in the industry, manufacturing requires reliable models and methods for the prediction

of output performance of machining processes.

The major objective of the present study is experimental analysis of machining parameters in

end milling for surface roughness by considering the input parameters such as cutting speed, feed

rate, axial-depth of cut, radial depth of cut and nose radius using taguchi’s orthogonal array.

Keywords: Taguchi’s orthogonal array; P20 Steel; surface roughness; cutting speed; feed rate.

Acknowledgements

The authors hereby thank Mr. Durgesh Nadig, Senior Scientific Officer, Indian Institute of Science

Bangalore, India for his suggessions. Authors also acknowledge the support of Dr. Parthoghosal,

Scientist F, DMRL Hyderabad, India for analysis.

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ICMM: 606 | Trace Elements of Azadiracta indica from mining area byEDXRF

technique

S. Jyothsna1*, G. Manjula1 and A.S. Nageswara Rao1 1Research Scholar, Department of Physics, Kakatiya University, Warangal, 506001, India


Abstract

The effect of mining activity on environment has one of the major concerns for public health.

The Present study deals with the elemental analysis of selected medicinal plant of Azadiracta indica

from mining area, Ramagundam, Karimnagar district. Elemental analysis was done by using Energy

Dispersive X-ray Fluorescence spectrometer at Trace Elemental Laboratory, UGC, DAE-CSR,

Kolkata centre. EDXRF is one of the most powerful, non-destructive, multi-elemental and with high

sensitive analytical technique. The thirteen elements such as P, S, Cl, K, Ca, Mn, Fe, Cu, Zn, Se, Br,

Rb and Sr were identified and their elemental concentrations were determined. These results

compared with control sample and NIST1515 apple leaf, it shows various elements found to present

in deferent quantities in same plant from different areas. High elemental concentrations were found

in Azadiracta indica from coal mining area, this may be due to of coal mining area has been

associated with enhancement of heavy toxic elements absorbed by soil. The analysis of this study

also gives the presence of elements in the environment pollution from mining area plant sample.

Keywords: Ex-3600 spectrometer; Trace elements; Azadiracta indica; Medicinal plants; Various

diseases.

Acknowledgements

The authors thanks to Dr. M. Sudarshan and Staff of the UGC- DAE Consortium for Scientific

Research centre, Kolkata, India, for providing the facilities at their Trace Elemental Laboratory for

carry out the EDXRF experimental work.

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ICMM: 607 | Ag/GaN hybrid nanostructures for opto-electronicapplications

Kishor Upadhyaya1*, Narasimha Ayachit1, Shivaprasad S. M.2

1Centre for Materials Science, K.L.E. Technological University, Hubballi City, 580031,

India 2Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced

Scientific Research, 560064, India


Abstract

A hybrid system of Ag nanoparticles and GaN nanowall network (GaN NWN) exhibits its

characteristic optical properties and electronic band structure. Photoluminescence studies of GaN

reveal the presence of a high density of band tail states at the conduction band, which is significantly

(x14 times)largerthan in GaN epilayer. The adsorption of low coverages of Ag leads to

nanoclusterformation,facilitatingcharge transfer from GaN to Ag and thereby further increasing

surface charge carriers. Upon annealing to 4000C, a red shift of ~ 0.18eV in the band edge emission

peak is observed along with two additional peaks on its either side. Raman studies show an increase

(x 2.46 times) in the interfacial strain at the Ag/GaN interface after the deposition of the Ag

nanoparticles. Influence of charge transfer between Ag and GaN along with the plasmon-exciton

coupling on Surface Plasmon Resonance leading to the abovementioned results has been discussed.

Keywords: GaN nanowall network; Ag nanoparticles; Photoluminescence; Raman spectroscopy

Acknowledgements We thank TEQIP and VGST (GRD-242 and GRD-441) for the financial support.

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ICMM: 609 | Optical properties of Calcium Sodium Phosphate Glasses doped

with Strontium

Chethan1, Sudhakar Reddy. M2, Abhiram. J3, Asha Rajiv4*

1,2,4School of Sciences-II, JAIN(Deemed to be University), Bengaluru, 560002, India

1,3Dept. of PG Studies and Research in Physics, The National College, Bengaluru,

560070, India

*Asha Rajiv. Mobile: (+91) 9880624363; [email protected]

Abstract

Strontium doped Calcium – Phosphate - Sodium oxide glasses were prepared by a conventional melt

quenching technique with different composition ratios of CaO and Na2O. XRD Spectra of these

glasses clearly reveals their amorphous nature. Density, molar volume, optical absorption and

refractive index measurements were determined in order to study the role of CaO in optical

properties of these glasses. The absorption spectrum of these glass samples exhibited broad band at

about ~230nm. Optical band gaps were determined by drawing Tauc plot and the various properties

like Urbach energies, molar refractivity, oxide ion polarizability, molar polarizabilty and optical

basicity were also calculated. The variations observed in all these properties can be attributed to the

creation of non-bridging oxygen’s (NBOs) in the glass network with increase in the concentration of

CaO which is an alkali earth oxide that creates non-bridging oxygens (NBOs).

Keywords: Optical properties; Non-Bridging Oxygens; Polarizability; Band Gaps.

Acknowledgements

Authors like to acknowledge the National College, Jayanagar, Bengaluru and Center for Nano and

Materials Science for their constant support for this research.

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ICMM: 611 | Effect of ZnO nanoparticles on structure and

magneticproperties of Li2O-B2O3: TiO2 glasses

L. Srinivasa Rao1*, Ch. Sai Phani Kumar2, K. Aruna Prabha2, C.D. Naidu1 1Centre for Nanoscience and Technology,

2Department of Mechanical Engineering,

VNR Vignana Jyothi Institute of Engineering and Technology, Bachupally, Nizampet

(S.O), Hyderabad, Telangana, Pin- 500 090, India.


Abstract

Li2O-B2O3 glasses were synthesized doping with TiO2 and co-doping with TiO2 as well as

ZnO nanoparticles by melt-quenching method. The samples were labelled as LB1, LBT2 and LBTZ3.

The XRD patterns of the prepared glass samples have shown two amorphous halos at small values of

2θ (≈ 22o and 45

o) are attributed to the short-range periodicity of the glass network due to non-

bridging oxygens (NBOs). The FTIR spectra of the glasses have exhibited prominent bands due to

the trigonal BO3 units, tetrahedral BO4 structural units and bending vibrations of B–O–B linkages.

Also, absorption bands were clearly seen due to stretching vibrations of O-H bonds of moisture in the

glass samples. The rigidity of the samples follows order: LB1> LBT2> LBTZ3. The ESR spectrum of

the glass sample LBTZ3 has exhibited a spectral line centered at about g ≈1.94. The addition of ZnO

nanoparticles into the glass matrix leads to convert the non-magnetic glass sample into a magnetic

glass material; because some of Ti4+

ions may be converted as Ti3+

ions in the melt-quenching

process. Thus, we expect that these materials can find the potential applications such as solid state

electrolytes and magnetic sensors etc.

Keywords: ZnO nanoparticles, Oxide glasses,X-ray diffraction studies, FTIR spectra, EPR spectra.

Acknowledgements Authors would like thank management of VNR VJIET, Hyderabad for sanctioning this project under

CNST establishment grant (File no. 17/VJ/1274).



ICMM: 613 | Elastic properties of sodium diboro-vanadate glasses

Harikamalasree1,2, G. Chandrashekaraiah3, R Viswanatha4, C Narayana

Reddy5 1R&D Center, Bharatiar University, Coimbatore, Tamil Nadu, India

2Department of Physics, M LR Institute of Technology Hyderabad-043, India,

3Government First Grade College, Kunigal, Tumkur University, Tumkur - 572130, India

4Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, India

5Department of Physics, PES Degree College, Bangalore – 560050, India


Abstract

Ultrasound velocities and elastic moduli of sodium diborovanadate glasses have been studies

over wide range of composition. Longitudinal and transverse velocities vary as a function of Na2O

content, which can be attributed to the structural density due to the increase in the number of bonds

per unit volume. The elastic moduli: longitudinal, shear, young’s and bulk modulus also show

compositional dependence. The increase in elastic moduli with Na2O concentration can be attributed

to the increase in rigidity due to the enhancement in the network connectivity (B-O-B, V-O-V, B-O-

V and V-O-B) and the dimensionality of the network. The variations are explained on the basis of

structural motifs formed due to network modification.

Keywords: Elastic properties, bulk modulus, diboro-vanadate.

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ICMM: 614 | Non-linear optical properties of Bi2O3-TeO2-B2O3-GeO2 glasses Salavadi Stalin1*, Avula Edukondalu2, M.A. Samee3, Sair Md. Taqiullah4, SyedRahman1 1Department of Physics, Osmania University, Hyderabad, India.

2Department of Physics, University college for Women, Koti, Hyderabad, India.

3Department of Physics, University college of Technology, Osmania University, Hyderabad, India.

4Department of Physics, College of Science, Jazan University, Saudi Arabia.


Abstract

New bismuth tellurite boro-germanate glasses according to composition xBi2O3-(80-x)TeO2-

10B2O3-10GeO2 where (x=40, 45, 50, 55, 60 and 65 mol%) have been prepared by melt quench

technique at 1150 C. The room temperature optical absorption spectra have been recorded. The

indirect band gap energy Eg was determined and found to decrease with Bi2O3 content. The increase

in Urbach energy with glass composition indicates the decrease in structural stability. The ionic and

covalent bonding parameters were determined. The present glasses are found to be 99 % ionic in

nature. The two-photon absorption coefficient was found to increase from 11.89 to 14 cm/GW. The

non-linear optical properties such as non-linear refractive index, linear optical susceptibility and third

order non-linear optical susceptibility were evaluated using optical data. The authors determined

theoretically the optical band gap (Eg) and refractive index (n) of the present glasses using optical

electronegativity data. The relationship between Eg and n followed the relation Eg n4 = 99. The

present glasses were found suitable for drawing optical fibers.

Keywords: Indirect band gap energy, Ionic bonding parameter, Non-linear optical susceptibility,

refractive index.



ICMM: 619 | Growth of 2-D MoS2 thin film by facile electrochemical deposition

Chittatosh Pal1, Subrata Majumder1*

1National Institute of Technology, Patna 800005, Bihar, India

*Subrata Majumder. Mobile: (+91) 9471949907; E-mail: [email protected]

Abstract

Among all transition metal dichalcogenides (TMDs), MoS2 shows very unique conducting

and optoelectronic properties, which makes it the most suitable material for fabricating real-time

sensors and atomically thin transistors. By chemical modifications, the MoS2 can be made more

useful in the field of various gas sensors, biosensors, optoelectronic devices. In this study we present

a novel facile method to grow 2-D MoS2 thin films by electrochemical deposition technique. We

have successfully grown MoS2thin films on ITO substrates through functionalization of MoS2 nano-

flakes in the presence of monochloroacetic acid (MCA). The functionalization of trigonal prismatic

MoS2 flakes with carboxyl group was achieved through sonication of MoS2 solution in DI water in

the presence of MCA and KOH. Due to weak van der Walls force between the sulphur-sulphur layers

of MoS2 flakes, ultrasonic vibrations can easily intercalate the MoS2 flakes, creating sulphur

vacancies at the two outer side surfaces and further saturated by Cl atoms of the MCA, forming

composites of MoS2-COOH. The as grown composites were then driven through linear sweep

voltammetry on an ITO glass plate to form the MoS2 thin film by controlling the sweeping cycles.

The growth of the thin film was confirmed by the cyclic voltammetric current responses, which show

the corresponding change in oxidation peak currents after the deposition of COOH-MoS2 thin film on

the ITO substrates. It was further observed that the charge transfer decreases with the increase in

thickness of the thin films as expected from the thick MoS2 semiconductor. These 2D MoS2 can be of

immense use in designing new types of real-time semiconducting biosensors, gas and

electrochemical based sensors, and atomically thin 2D transistors.

Keywords: MoS2; 2D; Nanocomposites; Cyclic voltammetry

Acknowledgments:

We would like to thank the Department of Science and Technology (DST), India for full financial

support of this research work with grant no.- ECR/2016/000818.



ICMM: 621 | Temperature dependence of density and thermal expansion of

oxide of Dysprosium in the temperature range 300 to 1000 K

M. RangaRao1 , N. Gopi Krishna2, S Chandra lingam3 1 Department of Physics, Kavitha memorial Degree and P.G College

2 Department of Physics Kakatiya University Warangal

3 Department of Physics, JNTUH, Hyderabad

Email:mrraophysics @gmail.com, cell:9963185659

Abstract

In this communication the variation of density and thermal expansion of oxide of dysprosium

with temperature is studied and reported.The gamma ray attenuation technique is employed to carry

out the study with a gamma ray densitometer fitted with high temperature furnace designed in our

laboratory. The temperature dependent quantities such as linear gamma ray attenuation (µl), density

(ρ) and the coefficient of linear thermal expansion (α) of Dy2O3 have been fit to a second degree

polynomial equation.

Keywords:Rare earth oxide, Thermal expansion, Gamma ray attenuation.

Acknowledgements

The authors gratefully thank Prof. C.Radhakrishnamurthy and Prof. K.GopalkishanRao of Central

Instrumentation Centre (CIC), Kakatiya University, Warangal for providing experimental facilities.

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ICMM: 622 | Cyclic oxidation behaviour of Cr3C2-NiCr coatings on three

different superalloys

* Subhash Kamal1, Srinivas Reddy1, S.R. Pedapati2, A.M. Abdul-Rani2 1Department of Mechanical Engineering, Geethanjali College of Engineering and

Technology, Cheeryala (V), Keesara (M), Medchal Dist. Hyderabad – 501301

Telangana, 2Mechanical Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri

Iskandar, 32610 Perak, Malaysia *Corresponding Author: [email protected]; Ph. no: +91 9948176918

Abstract

The D-gun sprayed Cr3C2-NiCr coatings on three different superalloys when subjected to cyclic

oxidation in air at 900 o

C for 100 cycles were found to be successful in maintaining its adherencey

with the substrate superalloys. The oxide scales were also found to be intact and there is no

indication of any spalling in all the cases. A saving in overall cumulative weight gain for Cr3C2–

NiCr coated superni 75, superni 718 and superfer 800H with respect to the bare alloys tend to be of

the order of 37.3%, 26.3% and 19.6% respectively. The Cr3C2–NiCr coating after exposure to air

oxidation showed the presence of mainly oxides of Cr in the upper region of the scale. In the

subscale region, the phases revealed were oxides of Cr and Ni, and their spinels, below the subscale

region, Ni-rich splats remained un-oxidised and provided protection to the superalloys against high

temperature oxidation.

Keywords: Oxidation; superalloys, Detonation gun, Cr3C2–NiCr coating



ICMM: 625 | Unexplored Intermetallic Nanopartilcle Catalyst towards Low-

Temperature Energy Extraction from Ethanol

Gubbala V. Ramesh1 1Assistant Professor, Department of Chemistry, Chaitanya Bharathi Institute of Technology (A),

Gandipet, Hyderabad-500075, India

*Corresponding author.Mobile: (+91) 8076909068;E-mail:[email protected]

Abstract

The vast populations of countries with burgeoning economies increasingly require environmentally-

friendly day-to-day methods of energy generation. Most of the traditional methods rely on

petroleum-combustion systems which produce significant quantities of exhaust, causing serious

health conditions and air pollution. The increasing interest in renewable energies has highlighted the

centrality of catalytic metal nanoparticles (NPs) in sustainable energy-conversion technologies

including photocatalytic water splitting and polymer-electrolyte membrane fuel cells (PEMFCs).

Ethanol fuels, which can be produced via biochemical routes including fermentation, are of growing

importance to establish the desirable petroleum-free economy. However, ethanol fuels are still

precluded from broad use except as an additive to petroleum for traditional combustion systems

primarily because of the lack of efficient catalysts which promote complete oxidation of ethanol at

low temperatures to fully extract chemical energy without heat loss. To address this, we report that

Platinum based intermetallic nanoparticles (NPs) with early 3d metals (Nb, Zr and Ta)1-3

, which are

materialized for the first time via a wet-chemistry route, exhibit substantially high performance

toward the complete electro-oxidation of ethanol at room temperature. The electro-oxidation of

ethanol fuels catalyzed by the TaPt3 NPs is accompanied by no toxic exhaust and is more energy-

efficient than combustion systems, allowing populations to improve their quality of life and reduce

the impact of their emissions on the global environment.

Keywords: Intermetallic Nanoparticles, Pt3Nb, Pt3Zr, Pt3Ta, Ethanol Electrooxidation.



ICMM: 626 | Paper based Photo-detector using Nano-crystalline LeadSulfide

Thin Film Pooja M. Khanzode1, Devidas I. Halge1, Vijaykiran N. Narwade1, Kiran D.

More1, Sumayya Begum1, Sabah Taha1, Suhas M. Jejurikar2, Jagdish W.

Dadge3, Abhimanyu S. Rana4 and Kashinath A. Bogle1,*

1Thin Films and Devices Laboratory, School of Physical Sciences, Swami Ramanand

Teerth Marathwada University, Nanded – 431606 INDIA 2National Center for Nanoscience and Nanotechnology, University of Mumbai, Mumbai-

400098 INDIA 3Department of Physics, College of Engineering, Pune-411005 INDIA

4Center for Advanced Materials and Devices, School of Engineering & Technology, BML Munjal University,

Gurgaon 122413 INDIA


Abstract

In this paper, we report an extremely low cost and highly efficient method for fabrication of

visible light photo-detector using nano-crystalline lead sulfide (PbS) thin film. The film was

fabricated on 300 GSM paper via spray pyrolysis technique at 100 0C. Structural and morphological

analysis of the film confirms the nano-crystalline nature of PbS with size ~ 50 nm and uniform

coating of PbS on paper. Photo-detector devices are prepared by drawing contacts using 4B pencil on

the film by keeping a gap of 1 mm between electrodes. Photo-detection property of a nano-crystalline

PbS thin film under visible light illumination show linear I-V suggesting low resistive contact

between graphite electrode and PbS film. The photo-sensitivity measurements reveal excellent

sensitivity of ~ 103 at 20 V. For this graphite/nano-PbS/paper photo-detector, the best rise and decay

time is observed to be 7 and 16 ms, respectively. This simple and low cost fabrication method results

in highly stable and sensitive photo-detectors device, which have fast response and decay time.

Keywords: Nano-crystalline; PbS; spray coating; photo-detector, fast response and decay time



ICMM: 629 | Review of Dissimilar FSW Joints

K.Viswanath Allamraju*, Thota Sreehari , Shaik Anees Institute of Aeronautical Engineering, Hyderabad, 500043, India


Abstract

Friction stir welding (FSW) was invented for the welding of dissimilar metals are difficult to weld by

other conventional welding method as fusion welding. FSW is a solid state joining welding technique

in which material undergoes intense plastic deformation at elevated temperature. Development of

FSW is considered to be most significant for the industry of automobile, aircraft and aerospace etc.

The joining of dissimilar metals is difficult by using traditional methods of welding because of inter

metallic compounds like Magnesium and Aluminium alloys. In order to enhance the joint strength,

The Friction stir welding is used which is a solid-state welding process. It is used to weld dissimilar

metals (or) unweldable metals.In this paper, review of dissimilar metals is presented by considering

the importance of the properties of friction stir welded joint of dissimilar metals.

Keywords: Dissimilar Metals, FSW, Aluminium alloy, Magnesium alloy.



ICMM: 632 | Comparative Analysis of Sodium Hexa-titanate (Na2Ti6O13) &

Sodium-Potassium Hexa-titanate (Na1.5K0.5Ti6O13)

N Alam1$, T Khatoon2, V S Chandel3*$, A Azam3, Rashmi4 1$

Department of Applied Science, BNCET, Lucknow-226201, India 2Department of Physics, Integral University, Lucknow-226026, India

3*$Department of APSH, Rajkiya Engineering College, Ambedkar Nagar-224122, India

4Material Science Programme, IIT Kanpur, Kanpur, India

5Department of Applied Physics, ZHCET, AMU, Aligarh-202002, India

$Affiliated to Dr. A.P.J. Abdul Kalam Technical University, Lucknow


Abstract

The present paper discusses the synthesis and characterization of Sodium Hexa-titanate (NHT) and

Sodium-Potassium Hexa-titanate (NKHT) by solid state reaction method. The phase of the

synthesized material was confirmed by XRD and the particle size has been calculated using Debye-

Scherrer relation. Morphology of the surface and dimensions of the crystals have been analysed

using FE-SEM analysis at different magnification. EDS analysis has also been done for elemental

analysis of Sodium Hexa-titanate and Sodium Potassium Hexa-titanate. IR spectra have been

recorded for getting various vibration modes of the samples.

Keywords: Sodium Hexa-titanate, Sodium-Potassium Hexa-titanate, XRD, FESEM, EDS, IR.

Acknowledgements

One of the authors is thankful to TEQIP-III of REC Ambedkar Nagar for providing the financial

assistance for the project. Authors are also thankful to Dr. Sri Siva Kumar, Associate Professor,

Department of Chemical Engineering and Material Science Programme, IITK, for providing the

experimental facility.

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ICMM: 634 | Development and validation of HPLC method for the

Quantitative determination of (E) -3-(3-(dimethylamino) propyl)-3- (3-(4-

hydroxy-3 methoxyphenyl) acryloyl) dihydrofuran-2(3H)-one tartarate as a

potential spermicide

Rishi Ranjan Pandey1, Devendra P. Mishra2*

1Department of chemistry, Pt Ram Lakhan Shukla Government Post Graduate College

Alapur, Ambedkar Nagar 2Department of APSH, Rajkiya Engineering College Ambedkar Nagar, UP.


[email protected]

Abstract

A simple and precise HPLC method for the Quantitative determination of (E)-3-(3-(dimethylamino)

propyl)-3-(3-(4-hydroxy-3 methoxyphenyl) acryloyl) dihydrofuran-2(3H)-one tartarate (a potential

spermicide) was developed and validated according to ICH guidelines. HPLC separation was

achieved on C-18 column (250mm, 4.6mm, 5m, merk) using a mobile phase consisting of

acetonitrile-0.1% acetic acid in water (85:15, v/v) at a flow rate of 1 mL/min and the eluents were

monitored by photo diode array detector at 240 nm. Limit of detection (LOD) and lower limit of

quantification (LLOQ) were found to be 0.69 μg/mL and 1.95 μg/mL. The method was validated for

linearity, limit of detection (LOD), limit of quantification (LOQ), recovery, precision and accuracy.

Keywords: Spermicides, HPLC, ICH guideline, N-9, LOQ, LOQ

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ICMM: 701 | Design and Development of Object Detection and Separation

Mechanism using Raspberry Pi

Vinaykumar Patancheru, G. Shravan Kumar, S. Venkata Surya Prasad MLR Institute Of Technology, Dundigal, Hyderabad, 500043, India

Vinaykumar Patancheru. Mobile: (+91) 8686804950; E-mail: [email protected]

Abstract

The Activity deals with an automated article allocation and implementing actual administration (pick

and place) for called items application apprentice system. It synchronizes the movement of automatic

arm to aces the altar affective on a agent belt. It aims in classifying the color (black, red, green, blue)

and shaped altar (circular, aboveboard shaped preferable) which are advancing on the agent by

acrimonious and agreement the altar in its corresponding pre-programmed location. Thereby

eliminating the terrestrial plan done by human, accomplishing accurateness and acceleration in the

work. The proposed arrangement makes use of avant-garde Raspberry Pi processor and aswell USB

camera to faculty the called altar affective on the conveyer belt.

The altar are sensed application an USB camera. When the article appears abreast to its around again

the arrangement captures an angel and fed as ascribe arresting the Raspberry Pi processor for added

implementation. The Raspberry Pi processor checks the captured angel from the predefined abstracts

abject like appearance and blush of the object. When the article detected matches with the called

appearance like blush and admeasurement again it activates the automatic arm motors application

interfacing circuits. The basal firmware for the Raspberry Pi is accounting in PHP/Python language.

The arrangement uses DC motor for the movement of conveyer belt and servomotor for automatic

arm gripper to aces the altar of corresponding blush and appearance from the anchored area at

accurate direction.

The Raspberry Pi is a low cost, credit-card sized computer that can be acclimated in electronics

projects. It is a able little accessory that enables humans of all ages to analyze computing, and to

apprentice how to affairs in languages like Scratch and Python. It’s able of accomplishing aggregate

you’d apprehend a desktop computer to do, from browsing the internet and arena high-definition

video, to authoritative spreadsheets, word-processing, and arena games.

Keywords: USB- Universal Serial Bus, DC- Direct Current, PHP- Personal Home Page

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ICMM: 704 | Data Logger Using Pic Micro-Controller

T. Pranetha, V. Arun , S. Venkata Surya Prasad

MLR Institute of Technology, Hyderabad, 500043, India

Mobile: (+91) 94916138531

; E-mail: [email protected]

Abstract

My project is about data logger using PIC micro-controller. When transporting the goods

from one place to another place or storing the goods in a certain place, the components should work

perfectly according to our application. Sometimes due to room temperatures also we can observe a

change in the component readings. So in that cases, data logger systems will be helpful. By using

those data log systems we can calculate temperature and humidity parameters. Then these readings

will be stored in a memory location so that these readings will be helpful for the future purpose. In

this type of temperature and humidity based data loggers, along with real time clock it will carry out

the measurements also.This project shows you how to get the temperature and humidity values for

particular components which are kept in a certain room or area or during the shifting process along

with the real time clock. Here we are measuring various weather parameters like temperature

humidity, time and date and all these process will be done by using PIC microcontroller. For this, we

require sensors for getting temperature and humidity values and a real time clock is used to get real

time. We can retain previous values also by using previous records. Finally, we can display these

parameters on the LCD display and save the records so that we can access the previous records. For

this storage we can use controller memory or else externally also we can connect a memory called

SD-card.

Keywords: IDE- MicroC pro for PIC, Simulation- Proteus software, PIC18F6527 microcontroller,

SHTxx sensor, Real Time Clock, 20*4 LCD- Display.



ICMM: 705 | A Consecutive Parameter Extraction Technique for IGBT

compact model

N.V. Bharadwaj1*, Dr. P. Chandrasekhar2,Dr. M. Sivakumar

1Geethanjali College of Enegineering and Technology, Hyderabad, 501301,India

2MGIT, Hyerabad, 500075, India

3Gudlavalleru Engineering College, Gudlavalleru, 521356, India


Abstract

A consecutive parameter extraction technique describes the fitting target related parameters for

Insulated-gate bipolar transistor (IGBT) model is presented. Using simulated data for a trench-type

IGBT as reference the performance of compact model IGBT is compared to an IGBT macro model.

Due to physics based modelling parameter extraction with the compact model is fast. With very less

extraction effort, the compact model fits the dc current and capacitance characteristics accurately.

Keywords: Compact model, macro model, insulated-gate bipolar transistor, parameter extraction.

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ICMM: 706 | To Design And Develop The Realtime Watermarking Schemes

Which Could Be Used In Iptv Applications A. Madhuri, N. Vasudeva Reddy, S. Venkata Suryaprasad

MLR Institute of Technology, Hyderabad, 500043, India

Mobile: (+91) 9441786935 or 9640212862;


Abstract

A strong technique of totally reversible advantage hiding in encrypted photos is proposed.

The quit image is first partitioned into no overlapping blocks and particular encryption is utilized to

receive the encrypted photo. Then, snapshot trade within the encrypted area can be calculated

headquartered on the holomorphic property of the cryptosystem. The information hider, who does

now not admire the usual image content material, would reversibly embed secret capabilities into

image alternate based on two-dimensional trade histogram alternate. Understanding extraction is

utterly separable from photograph decryption; that’s, expertise extraction will even be finished each

inside the encrypted area or within the decrypted field, in order that it is most commonly utilized to

distinct program eventualities. Moreover, talents extraction and picture healing are free of any error

with the rapid characteristics taking situation in cell web and cloud storage, privateers and security of

personal expertise have received significant concentration this present day. There are not any

guarantees that saved knowledge is by any large no longer accessed via unauthorized entities, such

because the cloud provider itself or malicious attackers. Beneath these distinctive events, touchy

images, comparable to scientific and individual portraits, ought to be encrypted earlier than

outsourcing for privateers-maintaining capabilities. In exceptional phrases, the clients wish to give

the untrusted cloud server most mighty an encrypted version of the info instead of the normal content

fabric (i.e., plaintext). Nevertheless, in some utility circumstances, the could servers or database

managers must embed some extra messages, related to authentication or notation competencies, right

away into encrypted information for tamper detection or ownership declaration purposes.


ICMM: 707 | DESIGN AND DEVELOPMENT OF PORTABLESPIRO METER

Kadari Anusha, V. Arun, S V S Prasad.

MLR Institute of Technology, Dundigal, Hyderebad,500043, India

*Kadari Anusha. Mobile: (+91) 8522856001; E-mail:[email protected]

Abstract

Every day we breathe about 20,000 times. This animation didn’t appear afterwards advice

from the respiratory tract, which includes the nose, throat, articulation box, trachea, and lungs. The

anniversary breath, which yield in air through your adenoids and mouth, and your lungs ample up

and abandoned out. As air is inhaled, the close membranes of the adenoids and aperture balmy and

bedew the air. Although we can’t see it, the air we breathe is fabricated up of several gases. Oxygen

is the a lot of important for befitting us animate because physique beef charge it for activity and

growth. Afterwards oxygen, the body’s beef would die. This activity uses AT89S52 Microcontroller

as affection of the project. We are appliance about-face arrangement to baddest the age of animal

being. It starts from accouchement to elders. Firstly we charge to baddest the age by appliance

switches. Again we charge to drag the air, by appliance the IR sensors we can apperceive the being is

advantageous or unhealthy. If the being is ailing again the buzzer will be activated. The LCD is

acclimated to affectation the bloom action of the person. Spirometer as capital accessory to perfom

spirometry assay is bare to accomplish analytic assay of Abiding Adverse Pulmonary Ache (COPD),

a limitation airflow disease. Spirometer will aftermath Affected Vital Accommodation (FVC), best

aggregate of air that can be exhaled during a affected action and aftermath Affected Asleep

Aggregate in one additional (FEV1), aggregate asleep in the aboriginal additional of acute cessation

afterwards a acute afflatus as the capital agency to assay COPD. Spirometry assay about performed

at a bloom dispensary or medical offices but now a days home spirometry with carriageable

accessories is boring accepting acceptance. But accepted carriageable home based spirometers accept

no coaching, feedback, or superior ascendancy mechanisms from physicians to ensure adequate

measurements. This abstraction creates android messaging, javafx desktop and website based advice

arrangement chip to carriageable spirometer fabricated from MPX5100DP sensor to account the

burden during FVC, and Arduino nano to accumulate clue and maintaince spirometry test.

Spirometers are acclimated to admeasurement lung accommodation and acknowledgment of lungs

and chest during concrete therapy.Accepted spirometers accessible in the bazaar are big-ticket and

usually amount over $1,000. Due to this top cost, abounding physicians practicing in developing

countries like India, cannot acquiesce spirometry equipment. As a result, millions of humans with

abiding adverse pulmonary disease, or COPD, are clumsy to be finer monitored or advised for their

disease. Thus, the development of a low amount reliable spirometer would acquiesce these

physicians to appraise their patient’s pulmonary health. All these factors led to the development of a

fabrication which addresses amount issues as able-bodied as abstruse accuracy.

Keywords:Micro controller, Serial port RS232, LCD Display.

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ICMM: 708 | IOT and GPS Based Women Safety System Using ARM7 Controller

V. SHARANYA1

, S. VENKATA SURYA PRASAD2


Mobile: (+91) 9676033108 or 9160866898; E-mail:[email protected]

Abstract

In mild of the present state of affairs of the metro cities and other large cities, girls protection

has emerged as one of the maximum crucial requirements in our country. In this international of

advanced era and clever electronics it's miles required to have a easy and value-powerful safety

machine that facilitates the sufferers for the duration of unforeseen dangers. This challenge covers

descriptive details about the design and implementation of prototype for an electronic machine

whichhastheabilitytoserveasaprotectionwearinsidethecomingyears.Thedeviceincludesa transfer,

ARM7, Wi-Fi module (ESP2866), GPS module (Neo6M), buzzer, Vibration sensor . The

predominant working of this undertaking is that every time a woman senses risk, all she has to do, is

to maintain at the button of the tool. Once the tool is activated, it tracks the region of the girls the use

of GPS (Global Positioning System) and sends place using Wi-Fi (wi-fi fidelity), to a server inside

the police control room. Here using electric powered shock for whilst she is in threat for safety. The

main gain of this system is that this tool small and clean to carry. The use of state-of- the-art

additives guarantees accuracy and makes it reliable.



ICMM: 709 | Emergency System based Smart Grid

S. Poorna Chandra Rao1,2, Dr.M.Sushama3 1Research scholar, Department of Electrical and Electronics Engineering, JNTU

Hyderabad, 500089, India 2Assistant Professor, Department of Electrical and Electronics Engineering, Geethanjali

College of Engineering and Technology, Cheeryal, 501301, India

3Professor, Department of Electrical and Electronics Engineering, JNTU Hyderabad,

500089, India

**Corresponding author. Mobile: (+91) 9533943555; E-mail:[email protected]

Abstract

In this paper a new approach to materialize a smart grid which uplifts the electricity via hybrid

renewable energy sources. As there is in demand of energy increase and de-regulation of power, Conventional

structure grid with few sources of generalized and centralized sources of system transmission i.e. it will supply

passive distribution of load in a system that will be charged with network based on energy renewal distribution

system connected to all levels of voltage.Solar, hydel and magnetic sources are applied to the booster for

harvesting the resources through the boosting circuits. The energy harvesting from solar cells by using the

primary batteries where electrochemical reaction is not reversed is very difficult. The electrochemical cells

with reversible chemical reation secondary batteries like Lithium-ion, Nickle Cadmium, Nickle metal hydride

and lead acid are used. The voltage level of this battery is incessantly monitored through voltage track and

microcontroller. Depending on the requisite voltage, if it is less than pre specified value then automatically

cut-offthe supply of that battery where the load is connected through an inverter and connects to another

battery through relay driver circuit which makes uninterrupted power supply to the load.

Keywords: Smart grid, micro grid, battery energy storage system, BESS, renewable energy sources, hybrid

power, solar energy, lead acid and lithium ion batteries.

Acknowledgements

I would like to express my special thanks of gratitude to Dr.M.Sushama, Professor, Department of Electrical

and Electronics Engineering, JNTU Hyderabad for her support and cooperation in doing this paper.

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ICMM: 711 | Advancaed Traffic Signal Control Algorithms

Nagula Kalyani, N.Vasudheva Reddy, SVS Prasad MLR Institute of Technology, Dundigal, Hyderebad, 500043, India

*Corresponding author. Mobile: (+91)8466930323;E-mail: [email protected]

Abstract

The goal of this project is to develop advanced signal control strategies for mobility, safety, and

environment based on connected vehicle data, i.e., real-time information on vehicles’ location, speed

and characteristics as well as communication to the signal control infrastructure. This document is

the final report for the project. It describes the findings from the literature review on existing

adaptive signal control systems, their features and operational experiences from their

implementation. Several performance measures are proposed for evaluating signal control

algorithms, and procedures for estimating the performance measures from connected vehicle data

were developed using statistical techniques and kinematic wave theory. We developed and tested

through simulation a number of control strategies to improve mobility: queue spillback avoidance,

control for congested networks, and dynamic lane allocation. The results indicate that the proposed

strategies improve the traffic performance. We also developed strategies for improving intersection

safety with emphasis on avoidance of red light running (RLR) related collisions. A prototype in-

vehicle driver speed advisory system for minimum fuel consumption and emissions was also

developed. Field tests show that the prototype system achieved significant fuel savings.In addition,

when an ambulance approaching the junction, it will communicate the traffic controller in the

junction to turn on the green light. This module uses Zigbee modules on CC2500.

Keywords: RLR- Red Light Running, ZigBee, CC2500



ICMM: 712 | EMOTION RECOGNITION FROM FACIAL IMAGES

Chintamadaka Ashwini, Anjaneyulu, SVS Prasad


*Corresponding author. Mobile: (+91)9515767505;E-mail: [email protected]

Abstract

Emotions play a very important role in our day to day life. Emotions are the natural physiological

response of the human bodywhich can be recognized by the facial expression. In the proposed system

research has been done in the field of Human Computer Interaction (HCI). The entire project is

divided into three majorsteps i.e. face detection, facial featureextraction and classification. In the

firstphase face detection has been done using Haar Cascaded frontal face algorithm. The system

detects and crops the lip region forfurther classifications, then the features areextracted into

vectorized form. Extracted features are compared with traineddatabase using Logistic Regression.

The main hardware used in this project is Raspberry pi with linux based OS toneglect the drawbacks

of personal computer and for better picture quality 8MP USB Camera is used.

Keywords: HCI- Human Computer Interaction, 8MP USB Camera.


ICMM: 715 | Impact of Deregulated power system market in

congestionmanagement of a transmission line

Thakur Pooja Rani1,2, Dr. P.V. Balasubrahmanyam3, Dr. Manjula

Mane4

1Research scholar, Department of Electrical Engineering, Osmainia University,

Hyderabad, Telangana, India., 2Assistant Professor, Department of Electrical and Electronics Engineering,

Geethanjali college of Engineering & Technology, (e-mail: [email protected] ). 3Professor in Department of Electrical and Electronics Engineering, CMRCET,

Hyderabad, Telangana, India (e-mail:[email protected]). 4Professor in Department of Electrical Engineering, Osmainia University, Hyderabad, Telangana, India (e-

mail:[email protected] ).


Abstract

Electricity is essential for daily life of the people and also for strengthening the economy.

Over the past few years, the electric power industry, in many countries, has undergone significant

changes in the total installed generation capacity using both conventional and non-conventional

energy sources. Despite of this remarkable progress, economy is still facing an enormous need to

meet the growing demand of electricity thereby increasing the competition offering opportunities to

number of generating companies, to deliver the electric power with same local service, same local

quality, and same local load delivery. This rapid increase in the power generation from various

emerging integrated energy sources are becoming a challenge to the existing transmission network.

Considering calculation accuracy and time this paper proposes two different computational

approaches viz.,(i)Neural networks Radial Basic Function(RBF) ,(ii)Monte Carlo simulation to

continuously compute Available Transfer capability (ATC) of a IEEE 14 bus transmission test

system to withstand the contingencies more efficiently in case of load change and line outages to

give accurate results so as to upgrade it in a deregulated transmission network. The results of the two

proposed techniques are compared to obtain accuracy for optimization in a deregulated environment.

Keywords: Available Transfer Capacity (ATC), Deregulation, congestion, Independent power

producers (IPPs), Neural Networks, Independent system operator (ISO), unbundling

Acknowledgements Sincere thanks to the authors for their kind co-operation and support in completion of paper.



ICMM: 718 | Casson Fluid Performance on Convective Flow in presence of

MagneticField, Chemical Reaction and Porous Medium

G. Aruna, M. V. Phani Kumari, R. Srinivasa Raju*

Department of Mathematics, GITAM University, Hyderabad campus, Rudraram, 502329,

Sanga Reddy (Dt), Telangana State, India


Abstract

The aim of this research work is to found the numerical solutions of magneto-hydro-dynamic

electrically conducting, viscous fluid flow towards a vertically inclined plate in presence of heat and

mass transfer, chemical reaction effects. The basic governing equations such as momentum, energy,

and concentrationare solved using an efficient finite element method which is more accurate than

other numerical methods. For this study, there are several engineering flow parameters effects on

velocity, temperature andconcentration fields are discussed through graphs. In conclusion, there is a

comparison of present numerical method with available results in literature and agree very well.

Keywords: Casson fluid; MHD; Chemical reaction; Finite element method.

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ICMM: 719 | Carbon footprint estimation for sustainable development

Dr. J.S. Sudarsan1, Jyesta.W2, Jaisal.D2, Dr. V. Sri hari3, Pola Vamshi4* 1Asst. Professor, School of Construction Management,

2,4PG Students Advanced Construction Management, National Institute of Construction

Management (NICMAR), PUNE – 411045, 3Professor, NICMAR, Hyderabad 500101, India

*Corresponding Author. Mobile: (+91)9642602396; E-mail: [email protected]

Abstract

The different types of human exercises particularly those recognized with development, signifies

outflow of ozone depleting substances, greenhouse emissions that outcome into an Earth-wide

temperature boost and environmental change. This affects nature and leads to imbalance in the

environment and ecosystem. Henceforth it has turned out to be important to reduce dangerous

atmospheric changes by some sustainable mitigation processes. In all the greenhouse gases, CO2 is

the main compound that adds to a worldwide temperature alteration. Thus it is fundamental

responsibility for every person to control the carbon outflow by understanding the concept of

sustainable development.

Carbon footprint estimation for an institutional and residential building was done separately for each

component of structure or as a whole organization. The reason for this investigation includes

distinguishing proof and examination of different emission inventories and the measure of carbon

transmitted by them regarding an institutional structure and the residential building materials also

assessed. Furthermore this study examines the current methodologies and approaches to estimate

carbon footprint in an institutional building and residential building in Karnataka.To ascertain the

status of carbon emission in the residential building materials a study was carried out in a proposed

residential structure. It was concluded that the existing institutional building is carbon positive and

also the amount of carbon emission by building materials used in the residential building also

contribute to carbon footprint results to carbon positive. So as to lessen the emission and to convert

the institutional structure and the residential building materials from carbon positive to carbon

negative, general mitigation measures are recommended and by implementing the same how much

carbon emissions also reduced was discussed .This research study also helps in creating awareness

about the impact of amount carbon emissions happening in an institutional building due to different

activities among the students, faculties and other public/Stake holders.

Keywords: Greenhouse effect, Carbon foot print estimation, Institutional building, Carbon positive,

Carbon Negative.

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ICMM: 720 | Numerical Study of unsteady Jeffrey Fluid Flow Past AVertically

Inclined Plate in presence of MHD, Thermal Radiation

M. V. Phani Kumari, G. Aruna, R. Srinivasa Raju*

Department of Mathematics, GITAM University, Hyderabad campus, Rudraram, 502329,

Sanga Reddy (Dt), Telangana State, India


Abstract

In this present investigation, unsteady boundary layer flow of MHD free convection heat andmass

transfer flow of a viscous, incompressible and electrically conducting fluid over an impulsively

started infinite verticalplate in presence of thermal radiation and Jeffrey fluid. For this study, the

magnetic Reynolds number is considered to be so small that the induced magneticfield can be

neglected. The fundamental equations are solved for numerical solutions using Element Free

Galerkin Method. The numerical values of fluid velocity, fluidtemperature and fluid concentration

are displayed graphically whereas the numerical values of skin-friction, the Nusseltnumber and the

Sherwood number are presented in tabular form for various values of pertinent flow parameters.

Keywords: MHD; Jeffrey fluid; Thermal radiation; Element Free Galerkin method.

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ICMM: 722 | Wiresless Communication Tehnologies For Smart Grid (WAMS)

Development

P. ARAVIND KUMAR, V. ARUN , S. VENKATA SURYA PRASAD


Mobile: (+91) 8106727041, 9182466124; E-mail: [email protected]

Abstract

Highly flexible, secured and bi-directional communicationinfrastructure for power system data

exchange is the stepping stone for the success of smart grid vision. Traditionally, wired

communication is the first choice for monitoring, protection and control systems. With advent in

communication technologies, the wireless technologies have also emerged as potential contender for

data communication in various industrial applications. Wireless technologies have distinct

advantages over wired in terms of higher mobility, lower installation cost and faster deployment

among others. The deployment of wireless technologies for monitoring and control systems of Smart

Grid namely WAMS has been largely unexploited area. This paper devises a systematic approach

that identifies the communication requirements of WAMS, defines the capability of various wireless

technologies such as Wireless LAN (WLAN), Wi-Max, Wi-Fi, GSM, GPRS etc. based on

performance criteria and selects the potential wireless communication technologies for WAMS based

on closest match. The WAMS communication requirement specifications have been arrived based on

Indian Smart Grid case studies. The paper also discusses the challenges and hence opportunities

associated withimplementation of wireless technologies for Smart Grid.



ICMM: 723 | Heuristic Techniques for Planning and Operation of Smart

Microgrid: A Review

Preeti1, K. S. R. Murthy2, Harish Pulluri3*

1Skill Assistant Professor, Shri Vishwakarma Skill University, Palwal, Haryana, 121102,

India 2Assistant Professor, Gayatri Vidya Parishad College of Engineering, Visakhapatnam,

Andhra Pradesh, 530047 3Associate Professor, Department of EEE, Geethanjali College of Engineering and

Technology, Hyderabad, Telangana, 501301, India


Abstract

In the recent past, the inclusion of renewable energy sources has been increased to a very significant

ratio in the power generation sector. The power system engineers working on the planning and

operation of generation and distribution of electric power proposed that instead of transmitting the

power to long distances, there must be some mechanism through which the transmission losses can

be reduced and also, power supply during unfavourable climatic conditions such as storms, rain etc.

must remain unaffected. This results in the setup of smart microgrids which poses the advantage of

independency of power supply from grid and can be used as isolated substation for small as well as

large customer demand. For the planning and operation of such microgrids, the optimization

techniques play a vital role in determining the different parameters to attain the optimal working

condition of the microgrid. To highlight these key optimization algorithms, this paper presents the

state of art of the heuristic techniques used for planning and operational issues of the microgrids.

Keywords: Heuristic; microgrid; smart; renewable; planning and operation

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ICMM: 724 | Solution of Optimal Power Flow Problem Using CarTracking

Optimization Algorithm

K. Mahender1, M. Vyshnavi2, B. Sai Priya3, Harish Pulluri4*

1Associate Professor, Department of EEE, Geethanjali College of Engineering and

Technology, Hyderabad, 501301, India. 2,3

UG Scholar, Department of EEE, Geethanjali College of Engineering and Technology,

Hyderabad, 501301, India, 4Associate Professor, Department of EEE, Geethanjali College of Engineering and

Technology, Hyderabad, 501301, India.


Abstract

In the current research car tracking optimization (CTO) technique is introduced to solve the optimal

power flow problem in an electrical network.With the introduction of new adaptive global velocity

updating method and local speed updating method, the CTO technique is capable to find the optimal

solution. IEEE 30-bus system with different objective functions are considering in the present work

to validate the effectiveness of the proposed algorithm. The attained results are compared with the

results in the existing literature. These results proved that the demonstrate that the CTO algorithm

provide better results in comparison to the other algorithm methods.

Keywords: Optimal Power Flow, Fuel Cost, Evolutionary Algorithm, Car Tracking Optimization

Technique

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ICMM: 726 | Design of a New Multilevel Inverter for FACTS Application

Padmaja Voleti 1,2, Dr. Y Siva Reddy3

1Research scholar, Department of Electrical and Electronics Engineering, JNTU

Ananthapur,515002, India 2Assistant Professor, Department of Electrical and Electronics Engineering, Geethanjali

College of Engineering and Technology, Cheeryal, 501301, India 3Professor, Department of Electrical and Electronics Engineering, G.Pulla Reddy

Engineering College, Kurnool, 518007, India

*Corresponding author. Mobile: (+91)8186855725; E-mail: [email protected]

Abstract

In recent times, there is a large increase in demand in power. As it is not economically viable

to attempt to develop transmission systems by simply installing new transmission lines, Flexible AC

transmission systems (FACTS) controllers are being mainly used for solving various power system

steady state control problems. The major component of these FACTS devices is a converter and

various types of controllers have been already proposed. In this proposed system, multilevel inverters

are used for harmonic reduction. This paper proposes a unique design of inverter with reduced

number of switches and hence to reduce the switching losses. The scheme proposed here is used on

an Interline Power Flow Controller (IPFC). The inverter can produce the pulses with different width

and magnitude and the output almost resembles a sine wave. The result of the proposed multilevel

inverter is compared with conventional type of IPFC. The simulation of both proposed system and

conventional system are given in this paper. The sample of voltage and current will be taken from the

transmission line and is given to the processor to determine the angle of firing for the switching

device.

Keywords: Flexible AC Transmission System (FACTS); Interline Power Flow Controller;

Multilevel inverter; Cascaded H Bridge

Acknowledgements

I would like to express my special thanks of gratitude to Dr. Y. Siva Reddy, Professor, Department

of Electrical and Electronics Engineering, G. Pulla Reddy Engineering College, Kurnool, for his

support and cooperation in doing this paper.

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ICMM: 729 | Design of a New Multilevel Inverter for Solar Energy

Conversion Systems

Padmaja Voleti 1,2, Dr. Y Siva Reddy3


Ananthapur, 515002, India 2Assistant Professor, Department of Electrical and Electronics Engineering, Geethanjali

College of Engineering and Technology, Cheeryal, 501301, India 3Professor, Department of Electrical and Electronics Engineering, G.Pulla Reddy

Engineering College, Kurnool, 518007, India

*Corresponding author. Mobile: (+91)8186855725; E-mail: [email protected]

Abstract

Multilevel inverters are capable of overcoming the limitations of two level inverters and can

synthesize a near sinusoidal voltage at its terminals from multiple dc sources. Several multilevel

inverter structures incorporate the more switching devices which increases the complex design due to

increased number of operating levels. In this paper a new inverter topology with reduced switch

count has been proposed. This can be used for interfacing solar energy conversion to conventional

grid. The proposed topology offers fewer switches, gate drive circuits, reduced size, low cost, low

harmonic profile, low switch stress and high efficiency over the formal topologies. The detailed

simulation analysis is carried out by using MATLAB/SIMULINK software and results are verified

with a conventional topology.

Keywords: Multilevel inverter; Renewable energy sources, Solar-Photovoltaic, Total Harmonic

Distortions.

Acknowledgements

I would like to express my special thanks of gratitude to Dr. Y. Siva Reddy, Professor, Department

of Electrical and Electronics Engineering, G. Pulla Reddy Engineering College, Kurnool, for his

support and cooperation in doing this paper.

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ICMM: 732 | Formal Verification of Fault Location, Isolation and Service

Restoration in Distribution Automation

S. Poorna Chandra Rao1,2, Dr. M. Sushama3 , Ch. Kavitha4


Hyderabad,500089, India 2Assistant Professor, Department of Electrical and Electronics Engineering, Geethanjali

College of Engineering and Technology, Cheeryal, 501301, India

3Professor, Department of Electrical and Electronics Engineering, JNTU Hyderabad,

500089, India 4Student, Department of Electrical and Electronics Engineering, Geethanjali College of Engineering and

Technology, Cheeryal, 501301, India

**Corresponding author. Mobile: (+91) 9533943555; E-mail:[email protected]

Abstract

In recent years, due to the consumers need to electricity with the least outages and the highest

reliability, power continuity of the electrical systems have been highly regarded by companies in the

electrical distribution field. Complexity in the process of distribution automation and manually

restoration mechanism in modern distribution networks cause longer duration of outages and make

the need to a reliable model for automatic fault location, isolation and service restoration (FLISR)

process necessary. In this study, a mathematical model of the FLISR process in a distribution

network is presented based on formal methods. The proposed model correctness has been

investigated by evaluating its important properties consisting liveness, reachability and deadlock

free.

Keywords: Distribution automation; fault analysis; automation; reliability.

Acknowledgements

I would like to express my special thanks of gratitude to Dr.M.Sushama, Professor, Department of

Electrical and Electronics Engineering, JNTU Hyderabad for her support and cooperation in doing

this paper.

I would like to express my profound sense of gratitude indebtedness to Ch. Kavitha, student,

Department of Electrical and Electronics Engineering for her valuable cooperation at each and every

phase of the work.

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ICMM: 734 | The Study of Surface Integrity on Friction Stir Welded Brass Plates

P.V. Chandra Sekhara Rao1*, B. Ramesh Chandra2, Aluri Manoj3

1,2,3Department of Mechanical engineering, RGUKT-Basar, Telangana- 504107

*Corresponding author. Mobile: (+91) 94442 40356;


Abstract

As brass materials are having high strength and high resistance towards corrosion, along with

high thermal and electrical conductivity, these were the reasons for their wide usage in the industry

as engineering materials. Although they have good appearance, they can also be shaped easily.

Anyhow, fusion welding of brass is a difficult task, as during the process of fusion welding zinc

evaporation has been a major concern which these alloys which affects its chemical and physical

properties. Many researchers have been working for the new methods as problems due to fusion

welding are not getting solved in case of brass. In this scenario Friction stir welding is one of the

novel methods to solve these problems. Then, experimental investigations were needed in this

domain. Although decent research works have been reported on FSW of Aluminium, copper and

their alloys, but constrained work has been done in case of brass. This research aims to determine the

optimum parameters for FSW of brass and corrosion test, tensile test, environmental tests, surface

morphology and surface metallurgy results has been examined on the obtained weld joints.

Keywords: FSW, Brass, Tensile strength, Surface integrity, Surface morphology, Corrosion test.



ICMM: 735 | LiTaO3 Directional Coupler Switching Operation with Enhanced

Extinction Ratio and Low Insertion Loss

Dr. D. Neelima Patnaik* and Dr. M.Chandra Shekhar Reddy DepartmentofPhysics, CMR College of Engineering & Technology, Hyderabad, India.

Abstract

A novel design of optical directional coupler switch with S-bend waveguides on LiTaO3

platform has been designed with R-Soft CAD tool and the same is simulated by Beam

propagation method(BPM) for light propagation analysis. The simulation results of optical

directional coupler switches are reported. We observed that the directional coupler (DC) switch

has lower insertion losses and higher extinction ratios with variation in waveguide parameters such

as, wavelength, waveguide gap, and length of the device. Simulation results designate that the

switching efficiency for TE and TM modes with extinction ratio about 3dB when the

waveguide gap is 3.5μm for both the polarization modes and insertion loss is 13dB with same

waveguide gap in TE mode and 16dB in TM mode at 1550 nm wavelength.


ICMM: 741 | Monte Carlo study of a martensitic model: Coarsening

exponents

N. Shankaraiah1*, Sanjay Puri2, and Subodh R. Shenoy1 1TIFR Centre for Interdisciplinary Sciences, Hyderabad 500107, India;

2School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067, India.

*Corresponding author. Mobile:(+91)9515909088; E-

mail:[email protected]

Abstract

We present Monte Carlo simulations under systematic temperature-quenches of a discrete-

strain pseudospin model Hamiltonian1 for a square-rectangle martensitic transition

2 in 2-spatial

dimensions. The model Hamiltonian contains: (i) a Landau term which has triple-well at the first-

order transition to represent one high-temperature parent austenite phase and two low-

temperature product martensite variants; (ii) a Ginzburg term for domain-wall energy costs; and

(iii) a no-defect condition induced power-law anisotropic interaction potential. We switch off the

anisotropic interaction potential and quench the austenite diluted with 2% of randomly sprinkled

martensite below the first-order transition. For shallow, moderate and deep quenches, we find

coarsening of martensite domains that follows a power-law L(t) ~ tα in time. The coarsening

length exponents are found to be in good agreement with the underdamped dynamics of a model

Landau free energy with continuous-strain order parameter3.

Keywords: Martensites; Solid-solid transitions; Monte Carlo.




ICMM: 742 | Investigation on Natural Convective Flow of EthyleneGlycol -

Fe3O4 Nanofluid in A Porous Cavity with Thermal Radiation

Ramesh Alluguvelli1*, Chandra Shekar Balla2, Lavanya Bandari3, Kishan

Naikoti4

1Department of Mathematics, Geethanjali College of Engineering & Technology,

Hyderabad, 500031, India 2Department of Mathematics, Koneru Lakshmaiah Education Foundation, Hyderabad,

500075, India 3Department of Physics, Anurag Groups of Institutions, Hyderabad, Telangana, 500039,

India. 4Department of Mathematics, Osmania University, Hyderabad, Telangana, India.


Abstract

This paper addresses free convection heat transfer in a square cavity filled with ethylene glycol

nanofluid containing (Fe3O4) in porous square cavity in the presence of thermal radiation. The top

and bottom horizontal walls of cavity are considered adiabatic, while the vertical walls are kept at

constant temperatures. The governing partial differential equations are solved by Galperin’s Finite

element method of weighted residual scheme. Numerical results are computed for certain pertinent

parameters: Rayleigh number (10-1000), radiation parameter (0.1-1) and nanofluid volume

fraction(0.1-0.5). The overall investigation of variation of streamlines, isotherms and Nusselt

numbers is presented graphically. To examine the accuracy, the present results are compared with the

available results and found to be in good agreement.

Keywords: Ethylene Glycol; Nanofluid; Fe3O4; Porous square cavity; Thermal Radiation,

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ICMM: 744 | An Arduino Based Multifrequency Voltage Controlled Oscillator

(Mf-VCO) for Electrical Impedance Spectroscopy (EIS)

Tushar Kanti Bera1*, Suraj Prasad Barnwal1, Toushik Maiti1 1National Institute of Technology Durgapur (NITD)

Mahatma Gandhi Av, A-Zone, Durgapur, West Bengal 713209, India


Abstract

A voltage-controlled oscillator (VCO) [1] is one of the key parts of electrical impedance

spectroscopy (EIS) [2] system which measures the electrical impedance of a material at different

frequency points within a particular bandwidth to study its frequency response. EIS instrumentation

[3] needs a function generator to generate an alternating voltage signal which is, generally, converted

into a constant amplitude current signal to inject it to the sample under test (SUT) and the sample

impedance is estimated by measuring the surface potential developed. On the other hand, the voltage

signal is also, sometimes, directly injected to the SUT to measure its electrical impedance from the

current signal developed due to the voltage applied. An automatic EIS instrumentation essentially

needs an automatic sinusoidal voltage generation at different frequencies which is generally obtained

by a VCO controlled by a microcontroller or any other electronic controlling unit such as PC based

Data Acquisition systems [4]. In this paper an Arduino UNO [5] based Multifrequency-VCO (Mf-

VCO) is developed for EIS studies. The VCO is developed with function generator circuits which

generates the sinusoidal voltage signal at different frequencies by changing the value of few passive

components connected to the IC as the frequency controlling components. The frequency controlling

components are connected to the VCO through an analog multiplexer circuits (AMC) operated by the

digital signals to generate the signals with required frequency values. The digital signals are

generated in Arduino board through its digital I/O pins and fed to the AMC to control the frequency

generation in VCO. The digital signal generation and AMC operation are assessed by LED based

digital signal evaluator (LED-DSE) to assure the connectivity of the passive components and

frequency control. Results show that the Mf-VCO is suitable for EIS studies of biological samples

within a wide bandwidth

Keywords: Voltage Controlled Oscillator (VCO), Multifrequency-VCO (Mf-VCO), Electrical

Impedance Spectroscopy (EIS), EIS instrumentation, LED based digital signal evaluator (LED-

DSE).

Acknowledgements Please acknowledge the funding authorities and other research supports.


ICMM: 745 | A Low-Cost Electroencephalography (EEG) Instrumentation for

Epileptic Seizure Detection

Tushar Kanti Bera1* and Sunil Choudhary1,2 1National Institute of Technology Durgapur (NITDgp), Durgapur, WB 713209, India

2Dr. B. C. Roy Engineering College, Durgapur, West Bengal 713206, India


Abstract

Epilepsy is a brain disorder or an abnormal activity of the central nervous system in which the human

brain malfunctions for a certain period of time, causing unusual behavior, sensations, and sometimes

loss of awareness or seizures. An epileptic seizure, which is caused by the inconsistent electrical

activity of the brain, is found as a period of unusual symptoms excessive or synchronous neuronal

activity in the brain. Noninvasive detection of epileptic seizures is an important role with many

advantages in medical science to assist doctors to diagnose and treat the patient. EEG based epileptic

seizure detection is a fast technology that generally combines electronic instrumentation and the

signal processing algorithm. In this paper, an EEG acquisition system (EAS) has been developed

with a multi-stage amplifier and filter blocks. The instrumentation is studied, tested and evaluated

with low voltage, low-frequency periodic signals generated with a function generator developed with

Wien Bridge oscillator circuit. The instrumentation has also been studied with the EEG-like signals

simulated by a virtual instrumentation (VI) developed with NI MyDAQ controlled by a LabVIEW

based graphical user interface (GUI). The instrumentation noise response is studied by measuring the

SNR of the circuit blocks using the test signals with and without noises. The SNR is obtained at each

stage of the circuit blocks and the overall SNR of the EAS instrumentation is measured and

compared. Results, obtained from the experimentation conducted with the real periodic signal as well

as the EEG waveforms simulated by VI, show that the developed EAS is suitable for acquiring and

amplifying the EEG signals and suitable for detection of epileptic seizure.

Keywords: Electroencephalography (EEG), EEG Instrumentation, Epilepsy, Epileptic Seizure

Epileptic Seizure Detection, EEG-like signals, NI MyDAQ.




ICMM: 746 | Electrical Impedance Spectroscopy (EIS) of Biological Cells: A

Matlab-based Simulation Study

Tushar Kanti Bera1*and Sampa Bera2 1National Institute of Technology Durgapur (NITDgp), Durgapur, WB 713209, India

2Member, Institute of Electrical and Electronics Engineers (IEEE), USA.

*Corresponding author. Mobile: (+919448853308); E-mail:[email protected]

Abstract

Biological tissues are developed of a three-dimensional array of the cells surrounded by the

extracellular matrix. Biological cells consist of a nucleolus floating within a sap like intracellular

material called cytoplasm containing cell organelles. The intracellular matrix is enclosed by an

envelope called a cell membrane composed of a protein-lipid-protein bi-layer structure. In the plant

cells, there is an another envelope called cell wall over the cell membrane. The cell wall is developed

with a comparatively rigid material to make a solid structure for plant tissues. Under an alternating

electric excitation, all the biological tissues, both the animal tissues and plant tissues, exert a complex

bioelectrical impedance which is a function of tissue materials as well as the applied signal

frequency. Due to the difference in the anatomical structural and material compositions, the

impedance models differ in tissue type. Moreover, it is obvious that the equivalent cell models of

plant cell and animal cell are different. Due to the variation in their single-cell model, the frequency

response of the electrical bioimpedance of the animal cell and plant cells. Consequently, the

impedance responses of animal and plant tissues are found remarkably distinguishable. The present

paper investigates the electrical impedance response of the biological cells with electrical impedance

spectroscopy (EIS). The animal and plant cell models are developed in Matlab and the EIS studies

are conducted for their single-cell structures. Complex bioimpedance and their phase angles are

calculated within a wide frequency range and the Nyquist plots are analyzed by estimating the real

and imaginary part of the bioimpedance. Comparative studies are also conducted for the multicell

model of both the animal and plant tissues.

Keywords: Biological tissues,biological cells, cell membranes, bioelectrical impedance, animal cell

model, plant cell model, electrical impedance spectroscopy (EIS).




ICMM: 748 | Finite Element Analysis of Heat Generation/Absorption of

Viscousdissipation Effects on MHD Casson Fluid Flow Over Exponentially

Acceleratedtemperature with Ramped Surface Concentration

Sweta Matta1, Bala Siddulu Malga2, Lakshmi Appidi1, P.Pramod Kumar3

1Department of Mathematics, CMR Technical Campus, Kandlakoya, Telangana ,India 501401

2Department of Mathematics, GITAM University, Hyderabad, Telangana, India 502329.

3Department of Mathematics,B V Raju Institute of Technology,Narsapur, Telangana, India 502313.

Corresponding authors:[email protected]; [email protected]

Abstract

This paper studies the effects of viscous dissipation, chemical reaction and heat

generation/absorption on unsteady MHD Casson fluid flow over an exponentially accelerated

vertical plate embedded in porous medium with ramped wall temperature and ramped surface

concentration. By introducing the similarity variables, the dimensional governing equations are

converted to non-dimensional form and solve numerically by using Galerkin Finite element method

and expressions for velocity, temperature and concentration profiles are obtained.

The change of velocity, temperature and concentration profiles effected by the following parameters

such as Prandtl number(Pr), Casson parameter (√), permeability parameter (k), Schmidt number

(Sc), Grashof number (Gr, Gm), chemical reaction parameter R,

heat generation / absorption

(H),Eckert number (Ec) and results are presented graphically and discussed quantitively.

Keywords: Finite element method, chemical reaction, Eckert number, Casson parameter, heat

generation/ absorption.




ICMM: 749 | Design and Implementation of Power Conditioning for

DistributionNetworks V2G to Electric Vehicle and DC charging system

Dr. K. Sree Latha1, Dr. M. Lakshmi Swarupa2 1Professor, St.Peter’s Engineering College, Hyderabad

2Professor, CVR Engineering College, Hyderabad

1Ph:9705334772, Mail: [email protected]

2Ph:9849732190, Mail: [email protected]

Abstract

Smart interactions among the smart grid, aggregators and EVs can bring various benefits to all

parties involved, e.g., improved reliability and safety for the smart gird, increased profits for the

aggregators, as well as enhanced self benefit for EVcustomers. The impact of plug-in electric

vehicles (PEVs) integrated into a powerdistribution system based on voltage-dependent control. The

gasoline gate situation has many peopleturning to electric vehicles as a more environmentally

friendly option, especially in smart communityareas. The proposed PEVs model was developed as a

static load model in powerdistribution systems under balanced load conditions.The topology of the

proposed charger consists of the bidirectional ac/dc and buck–boost dc/dc converters, where it can

operate in four quadrants in the active-reactive power plane with the capability of harmonic

compensation. Based on the PQ theory, the active and reactive power that includes average and

oscillatory components obtained, based on the demand of nonlinear/linear loads and EV battery. In

this paper presents the design of a single-phase electric vehicle (EV) on-board bidirectional charger

with the capability of power conditioning based on its control in charging/discharging active power

based on the demand of EV battery/network or load. The proposed approach was validated and

implemented in softwarepackages like MATLAB/OPALRT or etc to integrate the fidelity of the

physical simulation and the flexibility of the numerical simulations.

Keywords: Plug-in Electric vehicles; smart charging; PQ theory, EV battery; Physical simulation.

Acknowledgements:

The authors would like to express highest gratitude to the Faculty of Electrical and

Electronics Engineering, CVR College of Engineering for providing the effective facilities and

efficient learning environment in conducting the research. The research is supported by the

research grant of JNTU-TEQIP3 Collaborative Research Proposal “Multi-agent system for Energy

Management of Renewable and Alternative Energy in Domestic Cooking” of Rs 2, 15,000 Lakhs.



ICMM: 750 |Influence of Slip and Heat and Mass Transfer Effects on

PeristalticMotion of Power-Law Fluid in a Proned Tube

K. Maruthi Prasad1, N. Subadra2* 1Department of Mathematics, School of Technology, GITAM University, Hyderabad

Campus, Hyderabad, Telangana, India-502329 2*

Department of Mathematics, Geethanjali College of Engineering and Technology,

Cheeryal (V), Keesara (M), Medchal Dist., Telangana, India-501301



Abstract

Present study deals with the study of peristaltic motion of a power-law fluid with nanoparticles in a

tube with permeable walls. Heat and mass transfer effects and slip effect are studied in this

investigation. Axial velocity, pressure gradient and frictional force are expressed analytically and

investigated various parameter effects on these flow variables. The present model revealed that, heat

transfer coefficient and mass transfer coefficients increases in the region [-1,0] and decreases in the

region [0,1] with the increase of thermophoresis parameter and shows an opposite behaviour with the

increase of Brownian motion parameter. Pressure drop increases with the increase of slip parameter.

Frictional force decreases with the increase of slip parameter and converges to 1.

Keywords: Power-law fluid, Slip parameter, Brownian motion parameter, Thermophoresis

parameter.

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ICMM: 753 | Soret Effect on Radiation-Convection Flow in Porous Medium

with Chemical Reaction

Dr. Sk. Nuslin Bibi*, G. Padma

Geethanjali College of Engineering and Technology, Cheeryal (V), Keesara (M),

Medchal (Dist), T.S. 502103, India


Abstract

The numerical solution of unsteady two-dimensional, laminar, boundary layer flow of

viscous, incompressible, electrically conducting fluid in a channel filled with porous medium along

a semi-infinite vertical plate in the presence of transverse magnetic field and uniform mass diffusion.

The Galerkin finite element method is used to solve the equations governing flow. The flow

phenomenon has been characterized with the help of flow parameters such as velocity, temperature

and concentration profiles for different parameters such as Schmidt number, Prandtl number,

magnetic field, chemical reaction parameter, permeability parameter, chemical reaction, Soret

number and Grashof number. The velocity, temperature and concentration are verified graphically.

The coefficient of skin-friction, Nusselt number and Sherwood number are calculated.

Keywords: MHD; Soret; Thermal Radiation, Finite element method.

.


ICMM: 754 | Heat and Mass Transfer on Unsteady MHD Flow Through Aporous Medium in A Rotating Channel

G. Padma*, Dr. Sk. Nuslin Bibi

1Geethanjali college of Engineering and Technology, Cheeryal(V), Keesara (M),

Medchal (Dist), T.S. 502103, India

*Corresponding author. Mobile: (+91) 8019937970; E-


Abstract

Heat and mass transfer on the unsteady two dimensional MHD flow through porous medium

under the influence of uniform transverse magnetic field in a rotating parallel plate channel. A

mathematical model is developed for unsteady state situations using slip conditions. Analytical

expressions for the velocity, temperature and concentration profiles, wall shear stress and rates of

heat and mass transfer have been obtained and computationally discussed with respect to the non-

dimensional parameters.

Keywords: MHD; rotating channels; porous medium; heat and mass transfer.

.



ICMM: 758 | Mathematical Approach to Study Heat and Mass Transfer

Effects in Transport Phenomena of a non-Newtonian Fluid

N. Subadra1*, M. A. Srinivas2, Sunil Dutt Purohit3 1*Department of Mathematics, Geethanjali College of Engineering and Technology,

Cheeryal (V), Keesara (M), Medchal Dist., Telangana, India-501301

2Department of Mathematics, Jawaharlal Nehru Technological University, Kukatpally,

Hyderabad, Telangana, India-500085

3Department of Mathematics, Rajasthan Technical University, Rajasthan



Abstract

The paper deals with a theoretical investigation of the peristaltic transport of a couple-stress

fluid with heat and mass transfer effects. The velocity, pressure drop, time averaged flux, frictional

force, mechanical efficiency, temperature profile, nano particle phenomena, heat transfer coefficient

and mass transfer coefficient of the fluid are investigated, when the Reynold’s number is small and

wave length is large by using appropriate analytical methods. Effects of different physical parameters

like couple-stress fluid parameters, Brownian motion parameter, thermophoresis parameter, local

temperature Grashof number as well as local nanoparticle Grashof number on pressure drop

characteristics, frictional force, mechanical efficiency, heat transfer coefficient, mass transfer

coefficient, steam line patterns and velocity profiles of the fluid are studied. The expressions for

velocity, temperature profile, nanoparticle phenomenon, heat transfer coefficient and mass transfer

coefficients are sketched through graphs in two as well as in three dimensional views. The

streamlines are drawn to discuss trapping phenomenon for some physical quantities.

Keywords: Peristalsis, Couple-stress fluid, Temperature Profile, Nanoparticle phenomena

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ICMM: 2103 | Facile Hydrothermal Synthesis and Enhanced electrochemical

Performance of ZnCo2S4 Nanoparticles

M. Dakshanaa, S. Meyvela*, M. Silambarasanb, M. Malarvizhia

aChikkaiah Naicker College, Erode, Tamilnadu, India -638 004

b Vivekanandha college of Arts and sciences for women, Tiruchengode, Tamilnadu, India, - 637 205

E.Mail address: [email protected]

Abstract

Ternary transistion metal sulfides are promising electrode materials due to its low

electronegativity and high conductivity, higher electrochemical activity in compare to transition

metal oxides and single metal sulfides. In this research work, ZnCo2S4 nanoparticles have been

successfully prepared through a simple, cost-effective hydrothermal synthesis method for high

performance supercapacitors. The resulting samples were carefully characterized by X- Ray

Diffraction (XRD), Scanning Electron Microscope (SEM) with Energy Dispersive X- Ray Analysis

(EDX), Transmission Electron Microscope (TEM), and X-Ray Photoelectron Spectroscopy (XPS)

respectively.The electrochemical measurements were systematically applied to investigate the

performance of the ZnCo2S4 nanomaterials electrodes. The supercapacitor performance of ZnCo2S4

nanoparticles presented an obvious enhancement in specific capacity and cycling stability.

Electrochemical impedance spectroscopy result illustrated that the prepared sample possesses a much

lower charge transfer resistance. The experiment proved that the ZnCo2S4 nanoparticles are

promising electrode materials for next generation of energy storage devices.

(SC (NH2)2),

TERNARY METAL

SULFIDES

CALCINATION

Zn(NO3)2

+6H2OCO(NO3)2

+6H2O

HRTEM image of prepared ZnCo2S4 nanoparticles

Fig 1. Synthesis of ZnCo2S4 Nanoparticles .


ICMM: 2108 | Assembly and Performance Study of tubular gelled valve-

reglated lead acid batteries with hybrid combination of AGM-GEL-PE

S. Sasi Rekha1,2, K. Venkateswara Rao1*, V. Naresh2, S.K. Martha2 1Jawaharlal Nehru Technological University, Hyderabad, 500085, India.

2Indian Institute of Technology, Kandi, 502202, India.


Abstract

In this paper, the work reports on successful attempt to study the assembly & performance

characteristics of Gelled Tubular VRLA batteries and Hybrid tubular gelled VRLA batteries.

Comparative studies &performance characteristics were explained for both the type of batteries. Both

the prototypes were tested to study & compare the C/10 rate of discharge performance. The study on

cycle life seems to be very advantageous based on this work. Hybrid tubular gelled VRLA prototype

cells having hybrid combination of absorbent glass matt (AGM) & Sintered Poly ethylene (PE)

ribbed separator, which has the characteristics of both the separators. The hybrid tubular gelled

VRLA prototypes has the gelled system consisting of 6 wt% fumed silica immobilized in 30 wt%

sulphuric acid solution, which increases the heat capacity of the battery, thus gives good thermal

stability to battery and have significant advantages over flooded VRLA& Gelled tubular VRLA

prototypes. Teardown analysis of hybrid combination prototypes by Scanning electron microscopy

(SEM) &transmission electron microscopy (TEM) indicated the morphological studies, composition

explained about stability during prolonged cycling at different temperature ranges. X-ray diffraction

(XRD) studies after post mortem, indicated structural analysis before & after cycling. By conducting

life cycle test, we achieved more number of cycles for this hybrid combination than that of Gelled

Tubular VRLA batteries. The effect of this hybrid combination construction was clearly

demonstrated & explained herein based on test results.

Keywords: Hybrid Tubular Gelled VRLA Battery, Silicon Dioxide, Gelled Electrolyte, Sintered Ploy

Ethylene Separator, Absorbent Glass Mat separator, Tubular gel battery Cyclic life.

Acknowledgements Please acknowledge the funding authorities and other research supports.

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ICMM: 2113 | Synthesis, Structural and Electrochemical Properties of Ce and

Ni Substituted LiMn2O4 Cathode Material for Li-ion Batteries

S.J. Margarette1, *N. Murali2, V. Veeraiah1, M. Indira Devi1

1Department of Physics, Andhra University, Visakhapatnam, 530003, India

2Department of Engineering Physics, Andhra University College of Engineering (A),

Andhra University, Visakhapatnam, 530003, India


Abstract

The two elements Ce and Ni are doped in the cathode material (LiMn2-x-yCexNiyO4 where x =

y = 0 and 0.02) for studying the various properties related to its structure and electrochemical

conductivity. The method adopted is sol-gel auto-combustion with citric acid taken as the chelating

agent. The formation of the structure is done by XRD which is cubic spinel. The particle sizes are

found to be 156 to 168 nm which is found from FESEM. The results from cyclic voltammetry

detailed about the transfer of electrons and hence change in the potential difference. The EIS

measurements also confirmed the same. The rate of fading and capability are known from charge-

discharge studies. At the minimum value of doping concentration 0.02, the sample showed much

improvement in the capacity and capability. The sample with doping concentration, 0.02 exhibited

good cyclability after 20 cycles.

Keywords: Sol-gel method; cubic spinel structure; XRD; Charge-discharge.

Acknowledgements The author, S. J. Margarette is thankful to UGC for providing aid through Maulana Azad National

Fellowship, New Delhi, India.

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ICMM: 2116 | Ag Nanoparticles Decorated Porous TiO2-ZrO2 Composite as Aspatially Homogenous Surface Enhanced Raman Scattering Substrate

Hareesh. S.1, Sanu Mathew Simon2, Prakashan V.P.2, Twinkle Anna Jose1, Saritha A.C.2, Cyriac Joseph2, Biju P.R.2, Unnikrishnan. N.V.2* 1Department of Physics, Sacred Heart college, Thevara, Kochi-682013,India

2School of Pure and Applied Physics, Mahatma Gandhi University,Kottayam-686560,

India

*Unnikrishnan.N.V.. Mobile: (+91) 9745047850; E-mail: [email protected]

Abstract

Surface Enhanced Raman Scattering (SERS) is a sensitive spectroscopic technique that enhances the

Raman signals by orders of magnitude, which can be extended for the detection of natural dyes,

analysis of bio-molecules, single molecule spectroscopy and in different sensing applications. For

dye-based samples, under normal conditions fluorescence peaks dominates over Raman signals

whereas, SERS allows the existing samples those are initially may not be ideal for Raman analysis.

In the present work we developed porous Titania-Zirconia thin films with Pluronic F-127 and poly

methyl methacrylate (PMMA) with aid of a low cost and simplest sol-gel technique. Incorporating

silver nano particles at different molar concentrations layer by layer acts as a sufficient SERS

substrate. Due to the presence of silver nano particles the surface plasmon resonance enhancesthe

weak Raman signals. Rhodamine 6G (R6G) in 10-3

to 10-18

M is chosen as the probe molecule for the

evaluation of Raman enhancement over the substrate optimized with molar concentrations of 0.75M

Ag nano particle over Titania-Zirconia thin film. Rhodamine6G concentration up to 10-18

M detected

using Raman analysis shows the high sensitive nature of the SERS substrate thin films.

Keywords: Surface Enhanced Raman Spectra, Rhodamine 6G , sol-gel.

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ICMM: 2121 | Investigation on Nano CaTiO3 Filler Infused Plasticized PVdF-

co-HFPand PEMA Blended PVdF-co-HFP / Lithium (bisperfluoroethan-

esulphonyl) imide Composite Electrolyte for Lithium-ion Batteries

N. Sangeetha1, P. Vickraman* 1Solid State Ionics Lab, Department of Physics, The Gandhigram Rural Institute -

Deemed to be University, Gandhigram-624 302, Dindigul District, Tamil Nadu, India

*Corresponding authorMobile: (+91)9443447511; E-mail:[email protected]

Abstract

The PolyvinyldineFlouride-co-Hexafluoropropylene(PVdF-co-HFP) and Polyethylmetha

acrylate (PEMA) blended PVdF-co-HFP nanocomposite electrolytes ionic conductivity, molecular

complexations and thermal stability have been studied in terms of the concentration dependence of

plasticizer-filler weight ratio. The A.C. impedance studies in the frequency range 50Hz-5MHz have

demonstrated that the minimal content 2.5wt% of filler dispersoid showed 1.17x10-6

Scm-1

whereas

the higher content 10wt% reduced its magnitude to three fold 4.20x10-6

Scm-1

accounts for the ionic

transport through the flexible polymer chains. The FTIR spectroscopy studies confirm PEMA

complexation with PVdF-co-HFP and other constituents. The thermal studies by the DSC reveal that

PVdF crystallites melting has surfaced between 1350C to 145

0C indicate the vdF crystallites partial

melting which is followed subsequently followed in three terminal endotherms respectively at 1800C

and 2800C and 380

0C in filler-free nanocomposite electrolyte brings forth the crystallites melting are

dependent on the polymorphism (α, β, γ and δ phases) of the PVdF i.e. increase in filler content

which drastically affect the crystallites domains exist in different phases indicate that CaTiO3 has

enormously controlling the melting endotherm of PVdF crystallites have been seen. One of the

peculiar anomaly in DSC thermogram on the effect of PEMA with PVdF noted that the strong

exothermic event registered for its lower content with PVdF and its equal content with PVdF have

reversed as their enodothermic events at higher content of PEMA with lower PVdF and without

PVdf remarks that the PEMA plays a role for facilitating the plasticizer not to allow the vdF

crystallites for melting have been observed in this study. Thus the crystallites melting and increase

in amorphous phase forms the basis for the ionic movement through the polymer chains has been

noted in the investigations.

Keywords: Polymer blend nanocomposite; ionic conductivity; thermal studies; FTIR studies.

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ICMM: 2123 | Influence of Thermal Treatment on the Physical Properties

ofBismuth Ferrite Nanoceramics for Promising Multifarious Device

Applications

Waseem Ahmad Wani1, Kannan Ramaswamy1, Souvik Kundu2, B. Harihara

Venkataraman1* 1Department of Physics, Birla Institute of Technology and Science (BITS) -Pilani,

Hyderabad Campus, Hyderabad - 500078, India

2Department of Electrical and Electronics Engineering, Birla Institute of Technology and

Science (BITS) -Pilani, Hyderabad Campus, Hyderabad - 500078, India


Abstract

The emergence of multiferroic materials has recently paved a way for theirengrossing

applications invarious devices such as spintronics, memory, sensors and photovoltaics [1]. Bismuth

ferrite(BFO) materialappears to be a potential candidate especially for memory and photovoltaic

devices owing to its intriguing features like low optical bandgap (2.08 - 2.7eV), large remnant

polarization(90 µC/cm2) and co-existence of different ferroic orders [2,3]. However, the practical

application of this material is still hindered due tothe inherent limitations which include large leakage

current density and pure phase formation of BFO compound. Keeping this view in mind, we have

successfully synthesized the pure phase of BFO nanoceramics by adopting low temperature sol - gel

synthesis route and studied the effect of annealing temperature and time on thestructural,

morphological, optical and dielectric properties of these ceramics. The as-prepared samples were

calcined at 400oC and subsequently annealed at various temperatures (500

oC, 550

oC, 600

oC) for

different durations (2h, 4h, 6h). Interestingly, the sample annealed at 550oC for 2h almost yielded

pure phase of BFO ceramics and the average crystallite size of these ceramicscalculated based on

Williamson-Hall method was found to be increasing with both increase in annealing temperature and

duration. The infrared spectra (FTIR) recorded for all these samples exhibited strong absorption

bands in the range of 400-600 cm-1

which corroborated the perovskite structure of BFO

nanoceramics. The microstructural analyses have revealed the existence of granular shaped grains

with negligible porosity in all the samples studied. However, the samples annealed at higher

temperatures for longer duration showed the agglomeration of the grains in the scanning electron

micrographs. The optical bandgap was determined for all the samples prepared under various

annealing conditions by using Kubelka-Munk method. It is interesting to note that the value

ofbandgap of these ceramics could be tuned as a function of annealing temperature andduration. For

instance, the value of the optical band gap obtained for the pure sample annealed at 550oC for 2h was

found to be 2.08 eV. The dielectric properties of pure BFO nanoceramicswere carried out by using

LCR meter in the frequency range of 20Hz - 1MHz at 300K and the dielectric constant was found to

decrease with increase in frequency.Therefore, the tailoring of physical properties of BFO

nanoceramics in the present work by aforementioned thermal treatment parameterscould be

beneficial for designing memory as well as photovoltaic devices.

Keywords: Multiferroics; Bismuth ferrite; Bandgap; Dielectric properties

Acknowledgement We acknowledge DST - SERB for funding this project and also BITS - Pilani, Hyderabad campus for

providing infrastructural facilities to carry out this work.



ICMM: 2125 | Silver Nanoparticles on Modified Flexible Substrates for

Electronics Applications Gurumurthy S. C.1*, Anju Jolly1, Koduri Ramam2, Shridhar Mundinamani3, B. SNagaraja4

1Department of Physics, Manipal Institute of Technology, Manipal Academy of Higher

Education, Manipal -576104, India 2Departamento de Ingeniería de Materiales (DIMAT), Facultad de Ingeniería (FI),

Universidad de Concepción (UdeC), Concepción, CHILE. 3Department of Physics, Siddaganga Institute of Technology, B H Road, Tumakuru-

572103,India 4Department of Physics, NMAM Institute of Technology, Nitte, Udupi- 574110,

Karnataka, India


Abstract

The development of high performance flexible electronics applications requires dielectric materials

possessing a high dielectric constant and enhanced mechanical stabilitywith time [1,2]. Generally

most of the polymers are flexible and stretchable. It is appropriate to disperse or embedded metal

nanostructures in the polymer substrates for flexible electronics applications. In the present work

silver nanoparticles have been embedded by evaporating silver on modified polymer substratesin a

vacuum of 10-6

torr, which are kept above the glass transition temperature of the polymers. We have

used polyvinyl alcohol (PVA), polystyrene (PS) as polymer substratesand these were modified by

doping and also by electron beam irradiation. Optical absorption studies shows a significant shift in

absorption maxima towards higher wavelength on modified substrates compared to non-modified

substrates indicating a change in morphology, which is further confirmed by electron microscopy.

Keywords: Nanoparticles; modified substrates; Optical studies

Acknowledgements

Authors would like to thank Dr. Mohan Rao K, Manipal Institute of Technology for extending the

lab facilities to carry out the research work.

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ICMM: 2127 | A Theoretical Study of Non Linear Optical Responses and

Photo-absorption in Carbon Doped Boron Cluster

Shakti S Ray1*, Rakesh K Sahoo, Sridhar Sahu1 1High Performance Computing Lab, Indian Institute of Technology (Indian School of Mines),

Dhanbad, Jharkhand, 826004, India


Abstract

Herein, we investigated the nonlinear optical (NLO) response and optical absorption spectra

of the carbon doped boron cluster (CB10) along with its isomer within the principles of density

functional theory (DFT) and time-dependent density functional theory (TDDFT) respectively.

Optical absorption spectra of carbon doped boron cluster were computed using exchange-correlation

functional such as; CAM-B3LYP and wb97xD employing 6-311++(2d,2p) basis set.The calculated

absorption spectra of the studied compounds mostly fall in the ultraviolet (UV) regionin the range

236 nm-382 nm (B10), 227 nm-317.26 nm (B10C-I), and 237nm - 397 nm (B10C-II) for both the

methods respectively. The most prominent peaks of the studied clusters were observed at around 313

nm, 233 nm and 397 nm respectively. In addition, we noticed a very minimal peak in the near visible

region in the range between 609 nm–640 nm for all the studied clusters. However, we observed a red

shift of around 80 nm and 45 nm for B10C-I and B10C-II respectively. Static polarizability and

hyperpolarizabilities were also computed. It has been observed that the carbon doping enhance the

NLO responses by narrowing its HOMO-LUMO gaps whereas reverse observation was found in case

of its isomers computed. The results might open new perspectives for further development of

designing novel promising electro-optical boron-based nanomaterial.

Keywords: Optical absorption; boron cluster; UV region.

Acknowledgements Authors thankfully acknowledge IIT(ISM), Dhanbad for providing research facilities.

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ICMM: 2129 | Ionic Liquid Modified Photoelectrode for Enhanced Flexible

Dye Sensitizedsolar Cell Performance with Semi-Transparent

Electrodeposited Molybdenumdisulphide Counter Electrode

M. Gurulakshmi, A. Meenakshamma, M. Raghavender *

1Department of Physics, Yogi Vemana University, Kadapa-516005, A.P., India


Abstract

Semi-transparent, molybdenum disulphide flexible counterelectrodes (CE) realized through

electrodeposition method1. Low temperature TiO2 solution deposited on conducting PEN substrate,

sensitized with N719 dye followed by surface modification with 1-Vinyl,3-methyl imidazolium

iodide (VMImI, ionic liquid). A ionic liquid electrolyte injected into sandwiched type flexible dye

sensitized solar cell (F-DSSC)2. The surface modified photoelectroded test cell (0.16 cm

2 active area)

witnessed enhanced current density value of 12.56 mA/cm2 and power conversion efficiency (PCE)

4.84 % is higher than unmodified PE based F-DSSC (11.46 mA/cm2 and 4.35 %). For comparison,

platinum based flexible DSSCs with modified PES are fabricated revealed 6.08 % of PCE.The semi-

large area flexible DSSC module with MoS2CE gave 3.66 % of PCE, the results are presented.

Keywords:Flexible DSSC, MoS2 counter electrode, Imidazolium iodide, Surface modification,

Transparent DSSC module.

Acknowledgements

M. Gurulakshmi is thankful to DST-INSPIRE for awarding JRF, financial support through IF

160564. M. Raghavender thanks SERB, DST (Grant No. EMR/2016/007049) for financial support.


ICMM: 2130 | Improving the Electrochemical Performance of Zn Doped

LiNi0.8Co0.1Mn0.1O2 Cathode Material for Li-Ion Batteries

V. Kondala Rao1*, N. Murali2, V. Veeraiah1, K. Samatha1

1Dept.of Physics, Andhra University, Visakhapatnam, Andhra Pradesh, 530003, Indi

2Dept. of Engineering Physics, AU College of Engineering (A), Andhra University,

Visakhapatnam, Andhra Pradesh, 530003, India

*Corresponding author. Mobile: (+91) 83744 51096; E-mail:[email protected]

Abstract

The LiNi0.8-xZnxCo0.1Mn0.1O2 (x = 0.0 and 0.05) cathode materials are synthesized by the

sol-gel auto-combustion method. The structure, morphology and bonding nature of the synthesized

materials are characterized by XRD, FE-SEM with EDS and FT-IR studies. It is observed that the

lattice constant values for the Zn substituted layered materials are increasing than the base material

LiNi0.8Co0.1Mn0.1O2. As a result, more Li+ could be inserted/extracted. The charge/discharge curves

of the synthesized materials with the current rates of 0.1C between 2.6 V and 4.8 V is shown at room

temperature. The charge/discharge capacities for the first and second cycles are 176.1/162.7 and

163.7/150.3 mAh/g−1

respectively with capacities of 92.4 % and 91.81 % respectively.

Keywords: Ni-rich; LiNi0.8Co0.1Mn0.1O2; Cathode material; Charge/Discharge.



ICMM: 2140 | Room Temperature Magnetoelectric Properties of Fe75Ga25-

(Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 Laminates N. Pavan Kumara,b, Himalay Basumatarya, Atal Bihari Swainc, V. Subramanianc, A.

Srinivas*a

a Advanced Magnetics Group, Defence Metallurgical Research Laboratory, Kanchan

Bagh, Hyderabad – 500058-India bPresent Address

Matrusri Engineering College, Saidabad, Hyderabad-500059 cDepartment of Physics, Indian Institution of Technology Madras, Chennai 600036, India


Abstract

Over the past two decades, multiferroic materials in its composite forms have been an

important topic of research with a variety of applications such as low-power sensors, energy

harvesting devices, memory devices, magnetic refrigeration etc., have been investigated.In this work,

a tri-layer laminates of Fe75Ga25-(Ba0.85Ca0.15)(Zr0.1Ti0.9)O3-Fe75Ga25 has been fabricated and their

magnetoelectric properties were studied for energy harvesting applications. For this purpose, a lead

free piezoelectric (Ba0.85Ca0.15)(Zr0.1Ti0.9) ceramic powder has been prepared through solid state

reaction method and sintered at 1500oC for 5hr. Its structure has been confirmed with XRD analysis.

The Ferroelectric hysteresis loops were measured with a Prof 5.8 μC-cm-2

has been recorded.

Samples were poled at 1 kV for 10 minutes and piezoelectric charge coefficient (d33) values were

found to be in the range of 200 to 260 pC/N. On the other hand,Fe75Ga25 alloy was prepared by

powder metallurgy route by maintaining the proper Fe and Ga ratio’s and confirmed its A2 phase

structure. Magnetostriction of ~140 µ-strains has been achieved in this alloy. Finally, a tri-layer

laminate structure consisting of Fe75Ga25-(Ba0.85Ca0.15)(Zr0.1Ti0.9)-Fe75Ga25 has been made with the

thickness of 1mm each and with a diameter of 12 mm. Magnetoelectric measurement were

performed and showed a ME coefficient of 13 mV/Oe-cm. The results are discussed and compared

with the literature.

Keywords: Lead-free Piezoelectric, BCZT ceramic, Fe-Ga alloy, Magnetoelectric coefficient.

Acknowledgements

The authors thank Group Head and staff of Advanced Magnetics Group, DMRL forthe support.

Authors also thank Director, DMRL for giving the necessary permission to publish this work.


ICMM: 2144 | Molecular and Dielectric Relaxation Studies on 2-

Chloroaniline with 2-Methoxyethanol binary Solutions Using Time Domain

Reflectometry

Bhupesh G. Nemmaniwar Department of Physics Digambarrao Bindu Arts, Commerce and Science College,

Bhokar, Dist. Nanded – 431605(MS) India.

Mobile No. 9423306864, E-mail –[email protected]

Abstract

The dielectric relaxation measurements in the frequency range of 10 MHz to 30 GHz and at

temperature range of 0 °C to 25 °C using a picosecond time domain reflectometry technique have

been carried out over entire concentrations of binary mixtures 2-Chloroaniline with 2-

methoxyethanol. The complex dielectric permittivity spectra of 2- CA with 2-ME binary mixture

were fitted using Havriliak–Negami equation. The static dielectric constant and relaxation time for

all concentrations were obtained using least square fit method. The principal relaxation time is small

if compared to that of corresponding aniline/alcohol binary mixtures this may be due to the hydrogen

bonding ether oxygen in the 2-CA/2-ME system. The results are interpreted in terms of

heterogeneous interactions among the unlike molecules due to hydrogen bonding.

Keywords: Dielectric Permittivity, Dielectric loss, Relaxation time, Static dielectric constant, 2-

Chloroaniline with 2-Methoxyethanol.

Acknowledgements

Authors are thankful to School of Physical Science Swami Ramanand Teerth Marathwada

University, Nanded for availing the laboratory facility. We also thank Prof. Kumbharkhane A.C. for

the discussion and help full suggestion.


ICMM: 2156 | Semimetallic Nature of MTe (M = Ca, Sr, Ba) Under High

Pressure Lavanya Kunduru1*, Suresh Sripada2, S. C. Rakesh Roshan3, N. Yedukondalu3, M. Sainath3

1 Department of Physics, JNTU, Hyderabad, 500085, Telangana, India

2Department of Physics, JNTUHCEJ, Nachupally,505501 Karimnagar, Telangana, India

3 Department of Physics,RGUKT, Basar, 504101,Telangana, India


Abstract

We report pressure induced structural, topologicalphase transitions and Fermi surface in MTe

(M = Ca, Sr, Ba) compounds under high pressure using first principles calculations based ondensity

functional theory. CaTe[1], SrTe[2] and BaTe compounds undergo first order structural

phasetransition from NaCl-type (B1) to CsCl-type (B2) phase at 24.2, 14.7, 4.9 GPa respectively and

are consistent with the experimental observations [3].Electronic structure of MTe compounds were

calculated using Tran Blaha-modified Becke Johnson(TB-mBJ) potential and its new

parameterizations. The calculated band gaps are improved using TB-mBJ and itsnew

parameterization when compared to standard LDA/GGA functionals [4]. MTe compounds are found

to be indirect band gap semiconductors at ambient conditions and becomes semimetal upon further

compression. The high pressure B2 phase of (Ca/Sr)Te and BaTe are found to be node-line and

Dirac semimetals, respectively.

Keywords: High pressure, Topological phase transitions and Semimetal.

Acknowledgements The authors would like to thank RGUKT Basar for the computational facilities.


List of Poster Presentations


ICMM:101 | Complex permittivity and Permeability Properties Analysis of NiCuZn Ferrite-Polymer Nanocomposites for EMI Suppressor Applications

P. Raju*, Ch. Kalyani, J. Shankar, J. Anjaiah, G. NeerajaRani Department of Physics, Geethanjali College of engineering and technology, cheeryala, Hyderabad,

Telangana, India-501301.

*Corresponding author email: [email protected]

Abstract

The complex permittivity and permeability studies ofNiCuZnferrite-paraformaldehyde (NCZ-

PFD) nanocomposites for electromagnetic interference (EMI) suppressor applications arepresented.

The NCZFerrite and nanocomposites were prepared via microwave hydrothermal and ball-milling,

respectively. The nanocomposites were characterized by X-ray diffraction (XRD) and scanning

electronmicroscopy (SEM) the results indicate that the NCZ-PFD nanocomposites were successfully

prepared without impurities.The complex permittivity and permeability were measured over

frequency range of 8.2-12.4 GHz and 12.4–18 GHz. The results show that for nanocomposites, the

values of the real (ε′) and imaginary permittivity (ε″) and imaginary permeability (µ″) increase, while

the value of real permeability (µ′) decreases as the polymer content increases. Dielectric relaxations

were studied using cole-cole plots of complex permittivity. Magnetic relaxation dispersions were

analyzed using cole-cole plots of complex permeability. The possibility to modulate the

electromagnetic properties of the composite materials is of a great interest to fabricate microwave

absorbing and electromagnetic shielding materials with high performances.

Keywords: Nanocomposites; Ferrites; complex permittivity; complex permeability; cole-cole plots



ICMM:111 | Optical Properties of Samarium doped Zinc Lithium Borate Glasses

Kavita Hanumar1, B G Hegde18 and N H Ayachit2

1Department of Physics, Rani Channamma University, Belagavi – 591 15, Karnataka,

India 2Centre for Material Science, KLE Technological University, Hubballi – 580 031

Karnataka, India


Abstract

Recently, glasses containing rare earth ions have evoked interest due to their potential applications in

solid state laser, display devices, sensors, reflecting windows, wave guides, 3D data storage devices

etc [1-3]. In particular, the Sm3+

ions in host glass material exhibit broad emission bands due to

4G5/2

6HJ (J = 5/2, 7/2, 9/2, 11/2) transitions in any host matrix. In order to obtain optimum

emission characteristics for device applications, the characteristic features of host as well as

concentration dependent studies of Sm3+

are essential [4,5]. In this regard a new series of samarium

doped zinc lithium borate glass were synthesized and its optical properties were investigated.

Samarium doped zinc-lithium borate glass having composition of Sm2O3/ZnO/B2O3/Li2O3 were

prepared by melt quenching method. The samples show non crystalline nature confirmed by XRD.

The density and corresponding molar volume are measured. The optical absorbance studies were

carried out on these glasses to measure their energy band gap. The absorption spectra of theses

glasses were recorded in UV-Vis region. No sharp peaks were found in optical spectrum which

verifies the amorphous nature of glass. The optical emission study is in progress.

Keywords: Borate glasses; samarium doping, optical property.

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ICMM:112 | Exploration of Lead-free Magneto-electric

0.85(Na0.49K0.9Bi0.5TiO3) – 0.15(CoFe2O4) Particulate Composite for Sensor

Application

Munendrapal1, Adiraj Srinivas2* Saket Asthana1* 1Advanced Functional Materials Laboratory, Department of Physics, Indian Institute of

Technology Hyderabad, Kandi, Telangana-502285, India. 2Advanced magnetics group, Defence metallurgical research laboratory Kanchanbagh,

Hyderabad, India.

*Corresponding author. Ph: (+91) 4023016067; E-mail:[email protected]


Abstract

The materials which having more than one ferroic ordering (i.e., ferroelectricity,

ferromagnetism,ferroelasticity) simultaneously are known as multiferroics, and a have great

importance in developing magnetoelectric devices. These materials exhibit magnetoelectric effect

(ME) which,allows the coupling between ferroelectric and ferromagnetic order parameters. However,

so far, no single phase multiferroics are appropriate for applications because of their weak

magnetoelectric coupling at room temperature. Multiferroic composite is the best substitute of single-

phase multiferroic to enhance the magnetoelectric coupling. Lead-based multiferroic composites

have very high magnetoelectric coupling, but their uses are limited owing to the toxic nature of lead.

In this work,Na0.49K0.9Bi0.5TiO3(NKBT) and CoFe2O4 (CFO)have been chosen forthe lead-

freeparticulate composite because of their enhanced piezoelectricand magnetostrictive properties,

respectively1,2

.The magneto-electric composite (1-x) Na0.49K0.9Bi0.5TiO3 –xCoFe2O4 where (x=15

wt%) were synthesized by solid state reaction method1. The formation of hybrid composites and

appearance of closely packed grains were confirmed by X-ray diffraction and SEM measurements,

respectively. The backscattered micrograph confirms the evidence of phase separation of CFO and

NKBT. Thedielectric constantof the 85NKBT-15CFO is found to be ~5000 at 300⁰C and 100 kHz

which is higher than pure NKBT. The dielectric measurement of the poled samples was also

performed along with the unpoled samples. At room temperature poled sample shows the resonance

and anti-resonance peaks at a particular frequency range (~450 kHz to 455kHz). The magnetoelectric

coupling study has been done by measuring the magnetocapacitance up to 1-teslain an external

magnetic field.Moreover, interesting observations are found through comprehensive magnetic as well

as electrical studies. It can be concluded from this study that the 85NKBT-15CFO particulate

composite shows multifunctional property with usable dielectric, ferroelectric, magnetic and

magnetoelectric coupling which can be used for possible applications like, magneto-electric field

sensors and multistate memory and others.

Keywords: Multiferroic particulate composite; Magnetoelectric coupling; Magneto-capacitance;

magneto-electric field sensors.

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ICMM:115 | Magnetic and Dielectric Studies of Ba0.5Sr0.5Fe12O19 Prepared by

Solid State Reaction Method

V. Argish1, M.G. Shalini1, Subasa. C. Sahoo1,* 1Department of Physics, Central University of Kerala, Kasaragod, 671316, India

*Corresponding Author, Mobile: (+91) 9495101200; E-mail:[email protected]

Abstract

Ba0.5Sr0.5Fe12O19 was synthesized using solid state reaction method. The sample was

characterized by XRD, Raman, FTIR and SEM. Structural studies showed the presence of singe

phase in the sample. Lattice parameters were found to be 5.886 Å and 23.134 Å. Microstructural

studies showed platelet type structures in the sample. Magnetic properties were studied at different

temperatures ranging from 300K to 60K by applying field upto 30kOe. The spontaneous

magnetization (Ms) increased whereas coercivity decreased with the decrease in measuring

temperature. The highest Msvalue of 84 emu/g was observed at 60K and the highest coercivity of

3.12 kOe was observed at 300K. Dielectric studies were done at different temperature. Dielectric

constant and resistivity decreased with the increase in frequency whereas ac conductivity increased

with frequency.

Fig.1. (a) XRD pattern and (b) M-H Loop of Ba0.5Sr0.5Fe12O19 annealed at 1200°C.

Keywords: Hexaferrite, Magnetization, Coercivity, Dielectric Studies

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ICMM:116 | Thermo Magneto Electric Effects in Ferromagnetic Mild Steel,

Cobalt and Nickel as Core Materials in Vertical set up: Comparative Study

Mandava Sridhar1*, G. Patrick2 and J. Kishore Babu3 1,2,3

Department of Physics, Gokaraju Rangaraju Institute of Engineering and Technology,

Bachupally, Hyderabad, 500090, India.

*Mandava Sridhar: (+91) 9866939966; E-mail: [email protected]

Abstract

The voltage induced in the coil (solenoid or inductor) depends on number of turns of coil, rate of change

of flux and permeability of core material. It was observed that the induced voltage in a coil can be

further increased, if the temperature of ferromagnetic core material is increased. The variation of

inductance and effective resistance of the coil in the presence of heated ferromagnetic cores and

Coefficient of induced voltage,Coefficient of permeability for different ferromagnetic core materials are

also measured. All these parameters were measured for ferromagnetic Mild Steel, Cobalt and Nickel as

core materials in horizontal setup and vertical set up. In this paper variation of induced voltage,

inductance, effective resistance of the coil and Coefficient of induced voltage, Coefficient of

permeability in the presence of heated ferromagnetic Mild Steel, Cobalt and Nickel as core materials are

measured and reported in the vertical setup as comparative study.

Keywords:Induced voltage; Inductance; Effective resistance; Thermal treatment; Solenoid

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ICMM:118 | Vegetable Assisted the Green Synthesis of Gold Nanostructures

and its Nonlinear Optical Properties

Ramya Emusani1*, L. Jyothi2, D. Narayana Rao2

1MLR Institute of Technology, Hyderabad-500043, India

2School of Physics, University of Hyderabad, Hyderabad-500046, India


Abstract

Ecofriendly, cost-effective bio-synthesis of gold nanostructures (Au NSs) by using Daucus carota

subsp. Sativus and Cucumis sativus extracts were synthesized efficiently. The plasmonic peaks of

Daucus carota subsp. Sativus and Cucumis sativus extract synthesized Au NSs exhibited at λmax = 554

nm and λmax = 560 nm, owing to excite of surface plasmon vibrations of Au NSs and are responsible for

a dark pinkish color. Formation of NSs is due to ionization of phenolic groups of vegetable extract.

These extracts act as reducing and capping agents in the formation of nanostructures. These metal NSs

are stable for a few months. TEM images of Au NSs revealed that they are in spherical and triangle

shapes with face-centered cubic (FCC) structure. The spherical shape of Au NSs of average diameters is

51 nm and 53 nm respectively. The effect of NSs on the luminescence of Eu(TTFA)3 and Sm(TTFA)3

complexes was investigated with 350 nm excitation. Luminescence quenching is observed for Eu3+

,

Sm3+

with different concentrations of Au NSs in an exponential fashion. In both cases, the electric-

dipole and magnetic dipole transitions are quenched with an increase of Au NSs. The quenching is

occurring owing to re-absorption of NSs. Nonlinear optical studies of metal NSs are estimated with a Z-

scan technique using 800 nm, 110 fs pulses at 1 kHz repetition rate [1]. Au NSs exhibited reverse

saturable absorption (RSA) due to excited state absorption (ESA) and third-order nonlinear absorption

coefficients, optical limiting threshold values for both Au NSs are of the order of10-10

cm2/W and 10

mJ/cm2

respectively. Au NSs can be used as luminescent probes and optical limiters.

Keywords: Green synthesis; Metal Nanostructures; Nonlinear optical properties

Acknowledgments

This research was supported by Basic Science Research programme through the University Grant

Commission (UGC - BSR), India.

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ICMM:121 | Effect of Doping on Defect Modes of 2D Photonic Band Gap Crystals

Saranya Narayanan, B.V.R Tata* University of Hyderabad, Hyderabad, 500046, India


Abstract

Photonic band gap crystals (PBCs) are studied for their band structure with considerable interest

because they offer the possibility to control the propagation of light to an unprecedented level. Because

of this reason, PBCs have gained importance for designing novel molecular and bio-sensors. Here we

report numerical simulation results obtained by performing calculations for a 2D periodic dielectric

structure of cylinders (i.e. photonic crystals made up of dielectric rods) whose centres occupy the

positions of a square lattice with a lattice constant of 600nm. We have performed Electromagnetic

calculations using Finite Element Method by employing COMSOL Multiphysics software.The band

structure of the infinite crystal is calculated using Plane Wave Method using MIT Photonic Band gap

Package software. The calculated reflectance spectra showed three bands (582nm to 644nm, 730nm to

836nm, and 1022nm to 1146) for refractive index contrast of 2.98. In order to study the property of a

resonator, a point defect is introduced by replacing the dielectric cylinder with an air-cylinder. A sharp

dip within the band gap of the reflectance spectra is observed and is attributed to the localized mode

associated with the defect. Q-factor associated with the localized mode is calculated.The effect of

refractive index and size of the defect on the localized mode frequency and Q-factor have been

investigated and results are reported here.

Keywords: Photonic crystal; Defect mode; Q-factor; photonic band structure

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ICMM:130 | Non-linear Optical Studies of Cadmium Magnesium Oxalate

Crystals Grown by Gel Method

Mangala M Sanjeevannanavar1, Jagannatha N1*, and Rohith P.S.1

1PG Department of Physics, FMKMC College, A Constituent College of Mangalore University, Madikeri-

571201, Kodagu, Karnatak, India


Abstract

The growth of Cadmium Magnesium Oxalate (CMO) crystals were achieved successfully by

gel technique. The effect of various parameters such as specific gravity of Sodium Meta

silicate(SMS), concentration of oxalic acid solution, concentration of reactants cadmium chloride and

magnesium chloride, gel set time of the crystals have been studied. The study of FTIR spectrum

reveals the presence of various bands of functional groups. The study of UV-Vis spectrum shows that

optical transparency of the grown crystals. The absorption co-efficient and energy band gap were

discussed and reported.

Keywords: Gel method; FTIR; UV-Vi

Acknowledgements

Authors are thankful to Mangalore University for Sanction of fellowship, PURSE and USIC for

providing laboratory facility.


ICMM:131 | Influence of Alkaline Earths on EPR spectra of Lithium Borate

Glasses Doped with Fe (III) ions.

Ashok Bhogi1 and P. Kistaiah2

1VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, Telangana,

India. 2Department of Physics, Osmania University, Hyderabad, Telangana, India.


Abstract

Lithium borate glasses containing Fe (III) transition metal ion having composition 15RO-

25Li2O-59B2O3-1Fe2O3 (where R= CaO, SrO and BaO) are synthesized via melt quench route. These

glasses were characterized using X-ray diffraction (XRD). Electron paramagnetic resonance spectra

of prepared glasses have been studied. The recorded spectra mainly consists of an intense resonance

signals at g ~ 4.282 and also at g ~ 2.0032 along with a shoulder in the region of g ~ 8.033 which is a

characteristic of iron ions in the (3+) valence state in all the studied glasses. The number of spins

participating in resonance (N) and its paramagnetic susceptibilities (χ) have also been evaluated. The

spin concentration and the paramagnetic susceptibility at g = 2.0032 and at g = 4.282 increase by the

substitution of alkaline earths from CaO to BaO respectively. The peak-to-peak line width ΔB for the

resonance lines at g ≈ 4.282 and at g ≈ 2.0032 and the line intensity of the resonance centered at g ≈

4.282 and at g ≈ 2.0032 have been evaluated. This EPR spectra has been analyzed in the light of

different oxidation states of iron ions in order to understand the influence of alkaline earths as

modifier oxide on the structure of glass matrix.

Keywords: Lithium borate glasses, X-ray diffraction, EPR spectra.

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ICMM:136 | Luminescence Characteristics of Dy3+ Doped

Borofluorophosphate Glasses for White Emission Applications

Jismon Sebastian1, Subash Gopi2, Sreeja E2, Adon Jose2, Krishnapriya T2,

P.R. Biju2* 1 Sacred Heart college, Thevara, Ernakulam, 682013, India

2School of Pure and Applied Physics, M G University, Kottayam, 686560 India

*P.R. Biju. Mobile: (+91) 9446316179; E-mail:[email protected]

Abstract

The present work reports structural and luminescence studies on Dy3+

doped

borofluorophosphate (BFPDY) glasses prepared with the chemical composition of (40-x)B2O3 +

30P2O5 + 10ZnF + 10K2O + 10BaO + xDy2O3, where x = 0.1, 0.2, 0.5 and 1 mol% by melt

quenching technique. The structural and optical properties of the prepared glasses were analysed by

means of XRD, FTIR, UV-Vis absorption spectroscopy and photoluminescence emission and

excitation spectra. XRD results confirm the amorphous nature of glass and FTIR studies reveals the

presence of various stretching and bending vibrations of different structural units within the sample.

The optical absorption spectrum has been recorded at room temperature and different absorption

transitions were obtained and it is found that the transition via 6H15/2→

6P7/2 is more prominent. From

the absorption spectrum, optical band gap energy, nephelauxetic ratio (β) and the bonding parameter

(δ) were determined. Excitation spectrum was recorded in the region 300-500 nm by monitoring

emission at 572 nm and characteristic excitation bands were observed. The band at 348 nm arising

through the transition 6H15/2→

6P7/2 shows maximum intensity. The photoluminescence spectra of the

filled glasses have been recorded at an excitation wavelength of 348 nm and the spectra contain two

intense emission bands in the blue (483 nm) and yellow (572 nm) regions and a weak band in the red

region (663 nm). Concentration dependent variations in emission intensities were analysed. It is

observed from the emission spectra that the luminescence intensity increases with the increase in

Dy3+

ion content up to 0.5 mol% beyond that it decreases due to luminescence quenching. The Y/B

intensity ratio by varying the concentration of Dy2O3 is also studied. The emission intensity were

characterized through Commission International d’Eclairage (CIE) 1931 chromaticity diagram to

explore its suitability for white light emission applications.

Keywords: Nephelauxetic ratio; Luminescence quenching; Y/B intensity ratio; CIE color

chromaticity coordinates

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ICMM:144 | Structural, Thermal and Optical Properties of 50Bi2O3-15MO-

20B2O3-15Li2O (where M= Zn, Cd, Ba and Pb) Glasses

aJ. Bhemarajam, bG. Upender,aM. Prasad* aDepartment of Physics, Osmania University, Hyderabad-500 007

bDepartment of Physics, Nizam College, Osmania University, Hyderabad-500 001

*Corresponding Author: [email protected]

Abstract

The glasses with the composition 50Bi2O3-15MO-20B2O3-15Li2O (where M= Zn, Cd, Ba and

Pb) were prepared by conventional melt quenching method. The glasses were characterized using X-

ray diffraction (XRD), Fourier Transform Infrared (FTIR), Differential Scanning Calorimetry (DSC)

and optical absorption. XRD patterns of the glasses confirmed the amorphous nature of the glasses.

FTIR showed that the glass networks consist of bismuthate and borate groups. The glass transition

temperature (Tg), onset crystallization temperature (To) and thermal stability (∆T) of all the glasses

were determined from DSC. The optical absorption studies revealed that the cut-off wavelength (λc)

decreases while optical band gap energy (Eopt) and Urbach energy (∆E) values increases with MO

content. Refractive index (n) evaluated from Eopt was found to decrease with varying of MO content.

The physical parameters such as density (ρ) molar volume (Vm), oxygen packing density (OPD),

optical basicity (Λ), molar refraction (Rm) and metallization criterion (M) were evaluated and

discussed.

Keywords: Glasses, FTIR, DSC and Optical absorption


ICMM:146 | Synthesis, Structural and Magnetic Properties of

Multifunctional Spinel Ferrite Nanoparticles for Data Storage Applications

Shubhada Thorat*, Pooja Khedekar, Deepali Andhare, Supriya Patade, K.

M. Jadhav

1Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad


Abstract

In the present communication, we report the synthesis of pure cobalt ferrite nanoparticles using sol-

gel auto combustion method in which glycine was used as a fuel. The prepared nanoparticles were

characterized structurally by means of X-ray diffraction technique. The analysis of the XRD pattern

reveals the formation of single phase cubic structured compounds. The structural parameters like

lattice constant, X-ray density, Unit cell volume etc all are in good agreement with the literature

values. The crystallite size obtained through Debye-Scherrer’s formula found to be in nanometer

dimension exhibiting the nanocrystalline nature of the prepared samples. The magnetic properties

were investigated using pulsed field hysteresis loop tracer at 300K. The saturation magnetization

(MS) show significant enhancement as compared to bulk counterpart. The values of other magnetic

parameters like coercivity, remenance magnetization, magneton number etc obtained through M-H

hysteresis plot show the prepared multifunctional cobalt ferrite can be used for data storage

applications..

Keywords: Cobalt ferrite nanoparticles, sol-gel auto combustion, XRD, M-H plot.

Acknowledgements One of the authors Shubhada Thorat is thankful to Solapur University, Solapur for X-ray diffraction

facility.



ICMM:154 | Structural and Optical Properties of ZnS/Graphene

Nanocomposite Films Formed by Homemade Spray Pyrolysis Unit

V.H.Choudapur1*, S.B.Kapatkar1, N.H.Ayachit2

1Department of Physics, B.V.B.C.E.T., Hubballi-580031, Karnataka, India

2K.L.E.Technological University Hubballi, 580031, Karnataka, India


Abstract

A ZnS/Graphene nanocomposite was prepared by direct mixing of graphene nanopowder to

ZnS colloidal solution prepared by hydrothermal method. At different concentrations of graphene,

the ZnS/graphene nanocomposites are synthesised keeping the substrate temperature constant at

3500C. The obtained mixture was sonicated and used for preparing thin films using our homemade

spray pyrolysis system. Uniform, adherent and transparent thin films are obtained. The films are

characterised by UV-Visible spectroscopy, Photoluminescence, X-Ray diffraction (XRD), Energy

dispersive spectroscopy (EDS) and scanning electron microscopy (SEM). The absorption spectrum

of composite shows the blue shift in the absorption peak as compared to intrinsic ZnS thin film. The

bandgap increased with increase in graphene concentration from 4.1eV to 4.9eV. The XRD and EDS

analysis confirm the compositeformation and purity of the samples. The SEM images show the

uniformity of thin films with granules agglomerated structures.

Keywords: ZnS/Graphene nanocomposite, homemade spray pyrolysis system, Chromatography

sprayer, SEM, XRD

Acknowledgements: This work is supported by Research and Development cell, B.V.B. College of

Engineering and Technology, Hubballi, under Capacity building projects. Authors thank K.L.E

Technological University and B.V.B.C.E.T., Hubballi for providing financial support.

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ICMM:161 | Photoluminescence in KMgAlF6

Vartika S. Singh 1*, P. D. Belsare 2, S. V. Moharil 1 1Department of Physics, RTM Nagpur University, Nagpur 440033,India

2Physics Department, Shri RamdeobabCollege of Engineering and Management, Gittikhadan,

Nagpur 440013,India

*Corresponding author. Mobile: (+91) 6353304171, 9712011606;


Abstract

KMgAlF6 belongs to group of such hexafluoro-aluminates like LiCaAlF6 [1, 2] and LiBaAlF6

[3], where they replace AlO3-3

by AlF6-3

.KMgAlF6 crystallizes in cubic system with space group Fd

m[4]. Very less studies regarding its luminescence properties and crystal structure are available in

the literature. Fluorides are generally prepared by solid state reaction. Fluorides are sensitive to

hydrolysis. Purification of fluorides is necessary to eliminate traces of water and to hinder the

formation of oxyfluorides. These treatments makes the solid state techniques cumbersome and

difficult.In recent years, some wet chemical syntheses for preparation of OH¯ free fluorides have

been discussed [5]. Hence, We have decided to try the wet chemical route for the synthesis

ofKMgAlF6compound. X-ray diffraction pattern of our sample was compared to that of standard

ICDD data in order to confirm the formation of the desired compound. XRD results confirmed the

formation of KMgAlF6 in our sample. After XRD measurements, our sample was doped with rare

earths such as Ce3+

/Eu2+

activators. Procedure is same for preparing doped samples except that

freshly prepared europium/ cerous solutions(in the desired proportions) were added prior to the

precipitation. Later, photoluminescence studies were carried out for KMgAlF6:Ce3+

and

KMgAlF6:Eu2+

.

Keywords: Fluoride; Luminescence; Phosphor, Wet-Chemical synthesis.

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ICMM:162 | Rare Earth Based Insulating Nano Crystals for Plasma Display

Panels P. Chandar Rao1, Vishnu V. Jaiswal2, G. Ravinder1, C. J. Sreelatha1, D.

Haranath2,

1Materials Research Laboratory, Department of Physics, Kakatiya University,

Warangal,506009, India. 2Department of Physics National Institute of Technology, Warangal, 506004, India.


Abstract

In plasma display panel, the Eu2+

activated barium magnesium Aluminate (BAM) phosphor has

been conventionally adapted as a blue emitting component in many displays due to its availability and

high (>98%) quantum efficiency. BaMgAl10O17:Eu2+

(BAM) phosphor was synthesized in two steps

using auto-combustion method followed by sintering in reducing atmosphere. The X-ray diffraction

analysis confirmed that the crystalline phase of BAM nanophosphor as hexagonal structure. The SEM

observation revealed a uniform distribution of rectangular-type of morphology for the as-prepared

nanophosphor. Detailed investigation of photoluminescence has done in the current paper. The results

are promising and suggest that the BAM nanophosphor is highly useful in enhancing the color purity in

the plasma display panel screens.

Keywords: Auto combustion; Nano phosphor; Photoluminescence; Color purity.

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ICMM:165 | Low Temperature Synthesis, Structural, Cation Distribution and

Magnetic Studies of Cobalt Ferrite Nanoparticles

Farha Naaz, Aqsa Samreen, Shaikh Saima Anam, Shaikh Zeba Anjum, K.M.

Jadhav Dr. Babasaheb Ambedkar Marathwada University, Aurangabad.

*Farha Naaz, Mobile no.: 8830756447, E-mail: [email protected]

Abstract

Herein, we report the low temperature synthesis of multifunctional spinel cobalt ferrite (CoFe2O4)

using sol-gel auto combustion method, in which dextrose was used as a fuel. The reaction was carried

out at sufficiently low temperature of 110 degree celsius to obtain nanoscale particles of cobalt ferrite.

The obtained nanoparticles were structurally characterized by X-ray diffraction (XRD) technique using

CuK-alpha radiation. The XRD pattern show the reflections which belongs to cubic spinel structure. The

single phase formation and nanocrystalline nature was analyzed through XRD analysis. The crystallite

size estimated from the most intense peak (311) was of the order of 22 nm confirming the

nanocrystalline nature of the prepared samples. Using the XRD data, i.e. interplanner spacing (d) and

corresponding Miller indices the lattice constant (a) was calculated. The other structural parameters like

X-ray density, unit cell volume, strain etc. were also estimated through XRD data. The values of all the

structural parameters are well matches with the literature values. The cation distribution was estimated

using X-ray intensity ratio calculations, which confirms the inverse spinel structure of prepared cobalt

ferrite. The magnetic properties were investigated using pulsed field hysteresis loop technique. A typical

M-H curve recorded at room temperature reflects the magnetic nature of the cobalt ferrite. The saturation

magnetization (Ms) show enhanced value as compared to bulk cobalt ferrite. However, low value of

coercivity (Hc) was observed for the present sample indicating the superparamagnetic behaviour. The

observed magnetic behaviour was explained on the basis of Neel’s model.

Keywords: Low temperature synthesis, sol-gel auto combustion, cobalt ferrite, cation distribution,

magneticproperties.

Acknowledgements

The authors extend their sincere thanks to UGC-SAP Programme (F.530/16/DRS-I/2016 (SAP-2)

Dt. 16-04-2016) and DST-FIST (Project NO. SR/FST/PSI-210/2016 (C) dtd.16/12/2016) for providing

financial support.


ICMM:167 | Magnetic and Dielectric properties of Sm and Bi Substituted

Gadolinium Iron Garnet

Aakansha, S.Ravi* Department of Physics, Indian Institute of Technology Guwahati, Guwahati-781039,

Assam, India

*Corresponding author. 8473995096; E-mail:[email protected]/[email protected]

Abstract

Rare-earth iron garnets (RIG)s are technologically important materials for microwave devices,

microwave filters, memory devices etc.In the present work, we have prepared Gd3-xMxFe5O12 (M = Sm

and Bi) using standard solid-state reaction method and studied their influence on magnetic and dielectric

properties. All the samples are found to be in single-phase form with cubic structure as per the Rietveld

analysis based on Ia-3d space group. The lattice constant was found to increase with both Sm and Bi-

substitution. For the first time in GIG series negative magnetization with an applied magnetic field of H

= 200 Oe, is achieved by substituting Sm at Gd site (Gd1Sm2Fe5O12) as shown in Fig 1(a) and it is

explained in terms of enhanced magnetic anisotropy due to Sm-substitution. These materials also exhibit

large increase in the saturation magnetization, Msvalue, i.e. from 0.2 emu/g for x = 0 to 19.5 emu/g at x =

3.0. Bi-substitution also gives rise to increase in Msvalue but in smaller scale, i.e. up to 6.89 emu/g for x

= 1.0.Bi-substitution reduces the dielectric loss and these samples exhibit relaxor ferroelectric transition

(Fig 1(b) for Gd2Bi1Fe5O12 sample) with a typical diffuseness exponent, γ close to 2.0, as per the

analysis based on the modified Curie-Weiss law (inset of Fig 1(b)). The detailed analysis of magnetic

and dielectric data would be discussed.

Keywords: Rare-earth iron garnets; negative magnetization; ferroelectric-relaxor.

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Fig 1: (a) ZFC and FC plots of Gd1Sm2Fe5O12 sample. (b) ε' as a function of T for different applied frequencies

(100 Hz to 100 kHz) for Gd2Bi1Fe5O12 sample. Inset shows the plot of modified Curie-Weiss law in the

temperature range of 558 K to 598 K at f = 200 Hz.

mailto:[email protected]/[email protected]


ICMM:168 | A Comprehensive Device Modelling Of Solid-State Dye

Sensitized Solar Cell by MATLAB

Omhari Dubey1,a, Sarvesh K Gupta2,b and Abhishek K Gupta2,c

1Gorakhpur,273008, India

2Gorakhpur, 273008, India

*Corresponding author. Mobile: (+91) 8765783678, 6388731541;

E-mail::[email protected], [email protected]

Abstract

A Dye-sensitized solar cell (DSSC) has emerged as a live topic in the field of solar energy. In recent ten years

of growth, the energy conversion efficiency of DSSC has improved too much more. Numerical modelling is

an effective strategy in profound comprehension of the working mechanism of a solar cell. This paper

illustrates a numerical model of DSSC by using MATLAB. Several variations are taken into account in

performance curve (Jsc) of DSSC like variations in temperature, coefficient of absorption, thickness of

electrode and so on. The simulation is done based on a mathematical equation of DSSC. By using the internal

variable of DSSC (D, L, , t) we calculate the j-v curve numerically.

Keywords: DSSC, simulation performance, photovoltaic, modelling, MATLAB.

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ICMM:169 | Solid State Route Preparation, Characterization and Electrical

Properties of NiCuZnFe2O4/Paraformaldehyde Nanocomposites

P. Raju*, S. Rajesham, J. Shankar, J. Anjaiah, G. Neeraja Rani Department of Physics, Geethanjali College of engineering and technology, cheeryala, Hyderabad,

Telangana, India-501301.


Abstract

In this investigation, the structural and electrical properties of nanocomposites of NiCuZn ferrite

(NCZ) and paraformaldehyde (PFD) synthesized by solid state mixing route are reported. Synthesized

nanomaterials have been characterized by FT-IR and TGA techniques. FT-IR results confirm the presence of

NCZ and PFD in the samples. The DC conductivity measurements have been investigated. The dielectric

constant ε’ and dielectric loss ε’’ were found to increase as the PFD content increased to 50% and to decrease

as the PFD content further increased. A dielectric cole-cole diagram can be obtained by plotting the dielectric

loss ε’’ against the dielectric constant ε’. The colecole diagram is generally used for studying the dielectric

polarization characteristics by following the variation of dielectric loss ε’’ with dielectric constant ε’. From

this work, it is possible to deduce interfacial polarization and dipolar polarization from dielectric cole-cole

plots.

Keywords: Nanocomposites; Ferrites; conductivity; complex permittivity; cole-cole plots



ICMM:170 | Effect of Cr3+ Substitution on Electromagnetic Properties of

Nanocrystalline MgCuMn Ferrites Synthesized by Sol-Gel Method.

T. Ramesh1*, D. Bhavya2, K. Ruchitha Devi2 and S. Senthil Kumar3 1Department of physics, BVRIT Hyderabad College of Engineering for women, India.

2Department of ECE, BVRIT Hyderabad College of Engineering for women, India.

3Ferrite Laboratory, RRCAT, Indore-India


Abstract

The magnetodielectic properties such as initial permeability, hysterisis loop and dielectric

permittivity properties of the solgel synthesized MgCuMn ferrites with Cr3+

substitution were

investigated. The XRD patterns of the as synthesized powders reveal that the phase purity of the

powders with crystallite sizes are in the range of 15-40nm. FT-IR spectra further giving the support

to phase formation. The powders were densified at 1050°C/4hr by conventional sintering method.

The AFM patterns reveal that the microstructures of the samples are less than 500nm. Complex

permittivity and permeability spectra were undertaken with in the frequency range of 10 kHz-1.8

GHz. From these results, it is found that the initial permeability value decreases with increase of cr

substitution. The complex permeability spectrum indicates that the resonance frequency due to

domain wall oscillation is at a frequency above 20 MHz for all the samples. The hysterisis loop

parameters were calculated and we observe these parameters were decrease with higher Cr3+

substitution.

Keywords: Ferrite, Microwave Hydrothermal, XRD, FT-IR, complex permittivity and permeability.


ICMM:171 | Theoretical Study on Structural and Optical Properties of PEO &

NH4SCN based Solid Polymer Electrolyte

Vinay Shuklaa, Abhishek Kumar Gupta* b, Sarvesh Kumar Gupta

Madan Mohan Malaviya University of Technology, Gorakhpur (UP), INDIA-273010

*Corresponding author.Abhishek K Gupta Mobile: (+91) 8765783678;

E-mail:a) [email protected]*b) [email protected]

Abstract

Density Functional Theory (DFT) approach is a very useful technique to evaluate the structural and

electronic properties of the materials. Solid nano-composite polymer electrolyte based on poly

(ethylene oxide) (PEO) and Ammonium Thiocyanate (NH4 SCN) salt have been taken for study. The

interaction between PEO and NH4 SCN (electrolyte) in the subsequent step has been studied using

DFT from theoretical and computational calculation. The computational calculation of polymer

electrolyte provides the electronic properties, stability, structural, vibrational properties of PEO,

NH4SCN salt and composition of PEO with NH4 SCN. Moreover, the frontier orbitals (HOMO-

LOMO) configurations and energies were calculated for PEO, NH4SCN and the values are -

4219.3446 eV, -14918.3798 eV respectively. The interaction of PEO with NH4SCN shows the

interaction energy is 0.1775 eV. Mulliken charge distribution and IR are also calculated.

Keywords: DFT, HOMO-LUMO, Ionization Potential, Electron Affinity, Band gap

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ICMM:205 | Dielectric Relaxation Studies of Aqueous Diethylamine from

10MHz To 50GHz Using A Time Domain Reflectometry

A.R. Deshmukh1 and A.C. Kumbharkhane1*

1School of Physical Sciences, S.R.T.M. University Nanded-431606 India (MS).

*Corresponding author.Mobile: (+91) 9730598110;

E-mail:avadhutdeshmukh07gmail.com

Abstract

Complex dielectric permittivity of Diethylamine-water has been studied by using time

domain reflectometry technique in frequency range 10MHz to 50GHz. The measurements have been

carried out at temperature 25oC, 20

oC, 15

oC and 10

oC at different volume fraction of amine in water.

The dielectric relaxation behaviour of binary mixture amine-water has been fitted with Cole-

Davidson Model having an asymmetric distribution of relaxation time. The dielectric parameter such

as dielectric constant and relaxation time have been reported here. The Kirkwood correlation factor

has been extracted. The excess inverse relaxation time value shows the molecules of the mixtures

rotates slowly. The thermodynamic parameters like enthalpy of activation (ΔH) and entropy of

activation (ΔS) are reported.

Keywords:Complex permittivity, Dielectric constant, Relaxation time, molecular interaction.

Acknowledgements

The instrumental facility from the Department of Science and Technology, New Delhi in School of

Physical Sciences, SRTMU Nanded is gratefully acknowledged (Project no. DST PROJECT-

SB/S2/LOP-032/2013).


ICMM:206 | Dielectric, Spectral studies of gel grown Mg2+ Doped Copper

Cadmium Oxalate Single Crystal

Rohith P S1, Dr. Jagannatha N1*, Pradeepkumar K V1

1PG Department of Physics, FMKMC College, A Constituent College of Mangalore

University, Madikeri, Kodagu Karnataka, India



Abstract

Mg2+

doped Copper Cadmium oxalate (MCuCO) single crystals were grown by a single

diffusion method in silica hydrogel at room temperature. X-ray diffraction (XRD) studies show the

triclinic nature of the crystals. The dielectric constant, ac resistivity and ac conductivity have been

measured as a function of frequency. The dielectric constant of MCuCO crystal decreases as the

frequency of applied field increases; at the end it gives the diminishing value of dielectric constant.

ac conductivity increases with the increase of frequency. Absorbance, transmittance, reflectance,

refractive index, and energy gap of MCuCO crystal were determined by UV-Visible spectroscopy. A

high bandgap corresponds to the dielectric behavior of the crystal.

Keywords: MCuCO; XRD; UV-Visible.

Acknowledgements

The authors are thankful to the scientific officer DST-PURSE laboratory Mangalore University,

Chairman Department of studies in Physics Mangalore University, Director USIC Mangalore

University, Director Innovation Centre MIT Manipal and The Director STIC Cochin for providing

facilities for the characterization and technical support to carry out the work.

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ICMM:208 | Novel In-situ Synthesis of 1D ZnWO4 Nanorods Decorated 2D g-

C3N4 Nanosheets For Enhanced Visible-Light-Driven Photocatalysis

Ravindranadh Koutavarapu1, Bathula Babu1, Ch. Venkata Reddy1, Kisoo

Yoo1, #, Migyung Cho2, #, Jaesool Shim1, * 1School of Mechanical Engineering, Yeungnam University, Gyeongsan 712-749,

Republic of Korea 2School of Information Engineering, Tongmyong University, Busan 608-711, Republic of

Korea

*Corresponding author. Mobile: (+82)10-2800-7605; E-mail: [email protected] #Co-Corresponding author address: [email protected] (Kisoo Yoo);[email protected] (M. Cho)

Abstract

Recently, the fabrication of visible-light-induced photocatalysts with efficient light

absorption, improved active sites, and good charge separation have gained attention for the

decomposition of hazardous pollutants. In this study, we report a novel carbon-based semiconductor

photocatalyst g-C3N4/ZnWO4 nanocomposites with various contents of ZnWO4 were successfully

constructed through a facile and eco-friendly in-situ hydrothermal synthesis. The structure,

morphology and chemical states of the as-prepared nanocomposites were studied by XRD, TEM and

XPS measurements. Further, the surface of the fabricated 2D g-C3N4 nanosheets was completely

decorated with the 1D ZnWO4 nanorods. The results of photocatalytic investigations signify that the

synthesized heterostructured g-C3N4/ZnWO4 photocatalysts display substantially improved catalytic

performance for the decolorization of Rhodamine B (RhB) upon visible-light treatment. In particular,

g-C3N4/ZnWO4 photocatalysts with 20 mg of ZnWO4 achieved an RhB decolorization of 99% under

visible-light treatment within 80 min. The improved catalytic activity of the heterostructured

nanocomposite can be accredited to the synergistic interfaces among g-C3N4 and ZnWO4.

Furthermore, the heterojunction between g-C3N4 and ZnWO4 enables the direct transfer of

photogenerated electrons from g-C3N4 to ZnWO4, which could hinder the reunion of electron-hole

pairs and improve catalytic performance.

Keywords: ZnWO4; g-C3N4; Heterostructured nanocomposites; Visible-light-driven photocatalysis.

Acknowledgements

This research was supported by the Basic Science Program through the National Research

Foundation of Korea (NRF) funded by the Ministry of Education, Korea government (grant number

NRF-2017R1A4A1015581).




ICMM:213 | Resistive Switching Characteristics of Pt/TiO2/Al Structure

under Optical Illumination

Kiran D. More1,2, Devidas I. Halge1, Pooja M. Khanzode1, Vijaykiran N.

Narwade1, Sumayya Begum1, Shivaji G. Munde1, Jagdish W. Dadge3,

Abhimanyu S. Rana4 and Kashinath A. Bogle1,* 1Thin Films and Devices Laboratory, School of Physical Sciences, Swami Ramanand

Teerth Marathwada University, Nanded – 431606 INDIA 2Yeshwant Junior College, Umri, Dist. Nanded-431807 INDIA

3Department of Physics, College of Engineering, Pune-411005 INDIA




Abstract

Modulation in resistance switching characteristics of TiO2 thin film fabricated on aluminium

substrate is investigated under optical illumination. The average thickness of TiO2 thin film is about

200 nm. The current–voltage characteristics of the Pt/TiO2/Al structure show a good rectifying

property with unipolar resistive switching behaviour. This resistive switching behaviour is observed

to be modulated by optical illumination. Photo-carriers generated during optical illumination shifts

the set and reset voltage to lower values. This study is helpful for exploring optical effect in metal

oxides as multifunctional materials and its applications in non-volatile memory devices.

Keywords: Nano-crystalline; TiO2; spin coating; resistive switching



ICMM:216 | Application of Synthesized Tetragonal Structured Zirconium

Oxide Nanoparticle on Victoria Blue B and Acridine Orange Dye

Santhosh A.M1, Yogendra K1, Mahadevan K.M2, Madhusudhana N1 1Department of P.G studies and Research in Environmental Science, Kuvempu

University, JnanaSahyadri, Shankaraghatta, Shivamogga, Karnataka, India. 2Department of P.G studies and Research in Chemistry, Kadur P.G Center, Kuvempu

University, Kadur, Karnataka, India.

* Corresponding Author: Yogendra K. E-mail: [email protected], Mobile: +91

9448149461

Abstract

Zirconium oxide with the tetragonal phase was prepared from zirconium nitrate and urea by solution

combustion method. Nano-photocatalyst zirconium oxide was investigated by XRD, SEM-EDAX,

TEM, UV absorbance spectroscopy and specific surface area analysis. The distribution size of ZrO2

found to be <17nm and was confirmed by XRD and TEM studies. Further ZrO2 nano-photocatalyst

confirms tetragonal phase by XRD. EDAX reveals the presence of Zr and O. The efficiency of ZrO2

nanoparticles in the photodegradation of victoria blue B and acridine orange dye under sunlight was

investigated.

Keywords: Acridine Orange, Victoria Blue B, Zirconium Oxide, Photodegradation


ICMM:222 | Enhanced Electrical Properties of Sr(Bi3.9La0.1)(Ti3.975Zr0.025)O15

Ceramic with the Doping of Nd

B. Mamatha1*, K. Ashok2, G. Neeraja Rani1 and A. R. James3 1Geethanjali College of Engineering and Technology, Hyderabad, 501301, India

2Marri Laxman Reddy Institute of Technology and Management, Dundigal,

Quthbullapur, Hyderabad-43, India 3DMRL, Hyderabad, 500058, India

*Corresponding author. Mobile: (+91) 8978196162; E-


Abstract

The polycrystalline material Sr(Bi3.9-xNdxLa0.1)(Ti3.975Zr0.025)O15 with variation of neodymium

content from 2.5 to 10 wt% was prepared by solid state method. XRD analysis indicated the

formation of a single- phase orthorhombic structure. SEM analysis revealed the formation of plate

like structure. It was also observed that with increase in the content of Nd, the values of Curie

temperature (Tc) and dielectric constant (ε) were increased and the tolerance factor (t) decreased. It

was found that the remnant polarization, piezoelectric charge and electromechanical coupling

coefficients were increased up to certain extent of Nd doping and further increase of Nd content

decreased.

Keywords: Bismuth oxide layer structured ferroelectrics; Dielectric; Ferroelectric; and Piezoelectric

properties.

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ICMM:224 | Growth, Optical and Thermal Properties on Co2+ Doped Copper

Tartrate Single Crystals at Different Environmental Condition.

Pradeepkumar K V1, Jagannatha N1*, Rohith P S1

1PG department of physics, FMKMC College, Madikeri, Kodagu District, Karnataka-

571201, India.

*Corresponding author.Mobile: (+91) 7760648826;


Abstract

Cobalt doped Copper Tartrate (CoCT) crystals were grown in silica gel medium using single

diffusion methods at room temperature, passing semiconductor laser and passing various UV visible

radiation. The optimum conditions were obtained by varying parameters such as gel concentration,

pH of gel, gel setting time, concentration of reactance. The presence of cobalt, copper, carbon and

oxygen is confirmed by the Energy dispersive X-ray spectroscopy (EDX).The crystals obtained, are

regular or elongated shaped depending on the growth and environmental conditions. The grown

crystals are characterized by FTIR and PXRD.TGA/DTA studies explain the thermal behaviour of

the grown CoCT crystal. UV-Vis-NIR transmission spectroscopic analysis measured the energy gap

and, to study the optical transparency of the grown crystals.

Keywords: SEM; EDX; PXRD; TGA/DTA; UV-Vis-NIR.

Acknowledgements

The authors are thankful to the scientific officer DST-PURSE laboratory Mangalore University,

Chairman Department of studies in Physics Mangalore University, Director USIC Mangalore

University for providing facilities for the characterization and technical support to carry out the

work.

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ICMM:226 | Dielectric Relaxation Studies on Molecular Interaction in Binary

Mixtures of Glycerol with n-Methyl-2-Pyrrolidone

V. Manjulaa, b, T. Vamshi Prasadc, K. Balakrishnaa, K.C. James Rajud, T

Vishwama* aDepartment of Physics and Chemistry, GITAM (Deemed to be University) -Hyderabad,

Rudraram, Patancheru (M), TS- 502329. bDepartment of Physics, Geethanjali College of Engineering and Technology,

Hyderabad, Telangana 501301. cDepartment of Physics, Jawaharlal Nehru Technological University- Hyderabad,

Hyderabad -500 085. dSchool of Physics, University of Hyderabad, Hyderabad, Telangana 500046, India.

*Corresponding author. Mobile: (+91) (0)8455 220555/56/57; E-mail:[email protected]

Abstract

In the present manuscript, we are reporting the complex dielectric permittivity of glycerol / n-

methyl-2-pyrrolidone (NMP) binary mixtures of different concentrations in the in the microwave

frequency range 20 MHz-20 GHz at different temperatures. The dielectric relaxation times of the

binary mixtures are analysed by using the Havriliak-Negami equation. The ordering nature of the

molecular dipoles is discussed by evaluating the Kirkwood correlation factor(geff

) and stability of the

system by thermodynamic parameters. The experimental dipole moments of the pure and equimolar

binary system are determined by using Higasi’s method and compared with the theoretical dipole

moment values obtained from DFT/B3LYP methods. Mean molecular polarizability (αM) of the

system is calculated from the Lippincott δ function potential model and compared with the Lefevre

method. The molecular interaction between glycerol / n-methyl-2-pyrrolidone (NMP) binary

mixtures are discussed in terms of hydrogen bonding and dielectric parameters.

Keywords: Dielectric permittivity; relaxation; DFT; hydrogen bonding; mean molecular

polarizability.

Acknowledgements

The authors gratefully acknowledge University Grants Commission Networking Resource Centre,

School of physics, University of Hyderabad, for giving the opportunity to use the Research lab

facilities to carry out the above work.

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ICMM:230 | Thermal Properties of Pr2O3 dopedlead boro-tellurite glasses

Sangeeta B. Kolavekar1 and N. H. Ayachit2* 1Department of physics, BVB college of Engineering and Technology, K. L. E. Technological

University, Vidyanagar, Hubballi-580031. Karnataka, India. 2Center of Material Science, K. L. E. Technological University, Vidyanagar, Hubballi-580031.

Karnataka, India.


Abstract

This paper presents studies on the thermal properties of the rare earth ion Pr3+

doped lead

boro-tellurite (75PbO - (24-x) B2O3 - xTeO2 - 1Pr2O3) glass systems which are highly suitable for

fiber materials for non-linear applications like, laser, sensor, amplifiers etc. X-Ray Diffraction

(XRD) analysis of the samples depicts the amorphous nature of glass. Glass transition (Tg)

temperature and the crystallization temperatures (Tc) are determined using differential scanning

calorimeter (DSC) technique. Results on XRD and DSC show that the investigated glasses are stable

in nature. The stability of the glass is found to increase with addition of TeO2 mole%.

Keywords: Pr3+

ion; glass transition; DSC.

Acknowledgments

Authors (S.B.K and N.H.A) thank K.L.E.Technological University for providing funding assistance

through TEQIP grants.

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ICMM:234 | The effect of cation-size variance on the relaxor nature and

insulating character of the lead free Rb substituted Na0.5Bi0.5TiO3

Krishnarjun Banerjee, Saket Asthana

Advanced Functional Materials Laboratory, Department of Physics, Indian Institute

of Technology Hyderabad, Kandi,Telangana-502285, India

*Corresponding author. Ph: (+91) 040 2301 6067; E-mail:[email protected]

Abstract

Relaxation property is always matter of interest for the frequencydependent study of the ferroelectric

materials. The Nyquist plot of the impedance data provides the information about the relaxation phenomena.

Often, in solids instead of a single relaxation time a distribution of the relaxation times is found, which arises

from the different mechanisms. Usually, the relaxation times is varied by substitution and its influence is

studied on the basis of the compositional effect, but the impact of the size of the dopant is rarely

analysed.1Fundamentally, the substituted cations affect the crystal structure of the host material, which

modulates the relaxation phenomenon. In the current study, the Rb substituted lead free Na0.5Bi0.5TiO3

(perovskite structure, ABO3 type) is chosen as its A-site is compositionally disorder due to the presence of the

differentcations with dissimilar radii. The samples are prepared through the solid state sintering method.2 The

mismatch of the A-site cation radii is quantified through the size variance (2 ). The imaginary part of the

complex impedance ( Z ) vs itsreal part ( Z ) are plotted for all samples to verify the response of the grain and

grain boundariesand effect of the2 on the relaxor nature. At the higher temperature (500°C) single semi-

circular arcs are formed by the materials for lowest and highest 2 values. Interestingly, two semi-circular

arcs are observed for the material for highest 2 value at lower temperature (below 300°C). The second circle

is associated with the different relaxation time of the dipolar entity, which may be generated due to the

substitution of the Rb1+

. This observation proves that cation size mismatch creates the variation in the

relaxation times at the lower temperatures. The cation size mismatch also modulates the contribution of the

grain boundary to the impedance property. The real part of impedance of the 4 mol %, substituted

Na0.5Bi0.5TiO3 is enhanced by 4 times than pure Na0.5Bi0.5TiO3, which fortifies its performance as a capacitor

and energy storage device.

Keywords: Relaxation time; size mismatch; lead free ferroelectric.

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ICMM:235 | Optical Properties and Structural Studies of Eu3+ ions doped

Lead-Borate-Tellurite Glasses

Raju B. Katti1, V.K Pattar2, K.R Sardar Pasha3, N. Hanumantha Raju4, V.C Veeranna

Gowda4* 1Department of physics, K.L.E Society’s, S. Nijalingappa College, Rajajinagar, Bangalore-560010, India

2 Department of physics, B.G.S.R &D Centre, SJC Institute, Chikkkaballapur-562101, India

3K. R Sardar pasha, Research Scholar, Rayalaseema University, Kurnool, Andra Pradesh-518007, India

4 Department of physics, N. Hanumantha Raju, Maharani’s Science College for Women, Bangalore-560001,

India 4 Department of physics, V.C Veeranna Gowda, Maharani’s Science College for Women, Bangalore-560001,

India


Abstract

In the present study europium doped lead-boro-tellurite glasses were prepared by melt

quenching method. The oxygen packing densities have been calculated and were used to elucidate

the variation in the density and glass transition temperature. Borate glasses exhibit BO3 and BO4

structural entities with oxygen atoms. These two structural units of the boron cations gets modified in

the process of formation of various borate species in the form of diborate, triborate, metaborate,

tetraborates[1]. These different structural entities of the boron network bring down the local crystal

field around Eu3+

ions and exhibits structural dependent optical properties finds various photonic

applications [2-4].

The optical properties have been examined using UV-visible absorption spectra. The optical

band gap energy found to decrease with the increase of Eu3+

ions. The addition of lead oxide to

borate glass provides additional non-bonded oxygen coordination to Pb2-

ions. The addition of TeO2

significantly reduce the higher phonon energy of the borate glasses. The local symmetry offered by

the boro-tellurite glass network reveals the splitting of the 5D0

7F1 transition into three components.

These telluroborite glasses containing Pb2+

ions possess unusual optical properties like higher

refractive index and low phonon energy which reduces the multi-phonon relaxation, de-excitation

between rare-earth ions energy levels and to enhance the quantum efficiency of luminescent

transition of the trivalent rare earth ions [5]. The non-linear variation in the optical properties was

considered to depend on the electronic polarizability of oxide ions and is owing to the creation of

non-bridging oxygen in the lead borate glass network.

Keywords: Optical properties; Rare earth oxides; Borate glasses; Electronic polarizability.


ICMM:236 | Well-dispersed Amorphous carbon Nanotube-Alumina

Nanocomposite in Engine Oil for Nanofluid with Improved Thermal

Conductivity

Sudipta Kumar Sarkar1, Arunava Jha2, Kalyan Kumar Chattopadhyay1,2* 1School of Materials Science and Nanotechnology, Jadavpur University, Kolkata, 700032,

India 2Department of Physics, Jadavpur University, Kolkata, 700032, India

*Corresponding author. Tel: 033-24572876; E-mail: [email protected]

Abstract

Enhancing the thermal conductivity of a heat transfer fluid with the incorporation of

nanomaterial is a widelyknown technique to achieve an efficient cooling system where such fluid,

incorporated with nanomaterial is popularlyknown as nanofluid. However, the complexities in

synthesizing the desired nanomaterials and difficulties inincorporating them to the heat transfer fluid

due to their poor dispersion ability opens up huge scope for carrying outfurther research in this field.

Therefore, in the current work, we report, a simply synthesized amorphous carbonnanotubes (ACNT)

and alumina (Al2O3) nanoparticle based nanocomposite that can easily disperse in engine oil (a

classof heat transfer fluid) and can significantly improve its thermal conductivity. In our work,

ACNTs with the length of ⁓ 4μm and diameter of ⁓ 200 nm was synthesized by simple solid state

reaction method whereas alumina nanoparticles withthe dimension of ⁓ 50 nm were separately

synthesized by sol-gel method. Then the nanocomposite was prepared bysimply mixing them in

liquid medium, followed by drying. Structural characterizations were carried out through x-

raydiffraction, field emission scanning electron microscopic and high resolution transmission

electron microscopic studies.The nanofluid was formulated by dispersing the nanocomposite in the

base fluid (engine oil) with variation in loadingand subsequently thermal conductivity was measured

by Transient Hot Wire (THW) method. The maximumimprovement in the thermal conductivity of ⁓

20% was obtained with 0.04 vol. % of nanocomposite loading. So, all inall, it can be stated that

ACNT and alumina naoparticle based nanocomposite was successfully prepared and itsapplication in

enhancing thermal conductivity of engine oil has successfully been shown.

Keywords: Amorphous carbon nanotube; alumina nanoparticle; nanofluid; thermal conductivity.

Acknowledgements

Department of Science and Technology, Govt. of India.

University with Potential for Excellence (UPEII), Govt. of India.

University Grants Commission (UGC), Govt. of India.


ICMM:238 | Synthesis of garnet structured Ce doped Li7La3Zr2O12 electrolyte

by solid state reaction method

Anubha sodhiya*, Arun kumar singh, Ranveer kumar

Dr.Harisingh Gour Vishwavidyalaya, Sagar, Madhya Pradesh,470003, India


[email protected]

Abstract

Cubic Li7La3Zr2O12 garnet electrolyte is the most studied solid electrolyte material due to its high

ionic conductivity (10-4

S/cm) and large electrochemical stability window. It is difficult to stabilize

the cubic phase of Li7La3Zr2O12 at room temperature without any doping element. Doping of

different supervalent cations at the lithium and zirconium sites to stabilize the cubic phase of

Li7La3Zr2O12 electrolyte has been studied by different research groups. Here Ce substituted

Li7La3Zr2O12has been prepared by solid state reaction method in different compositions. The

structural and electrochemical properties of as prepared electrolyte have been studied by powder

XRD and AC impedance spectroscopy. The conductivity values obtained for Ce doped

Li7La3Zr2O12are considerably low as compared to pure cubic Li7La3Zr2O12 electrolyte which may be

due to the lower ionic radii of cerium as compared to lanthanum.

Keywords: Lithium ion batteries; solid state electrolytes; cations, ionic conductivity.


ICMM:239 |Microwave Assisted Green Synthesis of Silver Nanoparticles

using Punica Granatum Peel Extract: Evaluation of their Catalytic and

Antibacterial activity

Ruqya Banu1, 2, G.Bhagavanth Reddy2, K Girija Mangatayaru2*, 1Department of Chemistry, GDC Malkajgiri, Medchal, Telangana-500047,

India. 2Department of Chemistry, Palamuru University, Mahabubnagar, Telangana-509001, India.

*Corresponding author. Mobile No: (+91) 9705786186, Email:[email protected]

Abstract

The synthesis of silver nanoparticles (AgNPs) has drawn attention over the past few years owing to

their physico-chemical and optical properties. In the present investigation synthesis of AgNPs using

Punicagranatum peel extract was mediated under microwave irradiation. The duration of microwave

irradiation and concentration of AgNO3 and Punicagranatum peel extract were optimized for the

better yield of AgNPs.Under all optimized conditions, the zeta potential, average diameter and

polydispersity index of AgNPs synthesized were -30.5 mV, 10±2 nm and 0.224 respectively.

Phytochemicals present in the extract help to reduce silver salt to metallic silver and act as a

stabilizer in the synthesis of AgNPs. The synthesized AgNPs are characterized by routine analytical

techniques like UV-visible, FTIR, XRD, DLS and TEM. The synthesized AgNPs not only showed

good catalytic activity in the reductions of p-nitrophenol, Methylene Blue and Congo red, but also

showed antibacterial activity against gram positive and gram negative bacteria.

Keywords: Microwave, Punicagranatum, Silver nanoparticles, Antibacterial properties, Catalytic

activity.

Acknowledgements

All the authors thanks to Department of Chemistry, Palamuru University and Department of

Chemistry, Osmania University for providing infrastructure and other necessary facilities. The

authors would like to thank STIC, Cochin, India for extending their TEM facility.



ICMM:241 | Variable Photoluminescence of Nano Zirconia Quantum dots by

Hydrothermal Synthesis

G. Deepthi Reddy1, M. Noorjahan1* and A. Ratnamala2 1*

Department of Chemistry, Palamuru University,Mahbubnagar-509001,Telangana,India 2 Deprtment of Chemistry,Githam University, Bengaluru Campus-560065, Karnataka,India


Abstract

In the last few decades, nano Zirconia has attracted great attention because of its versatile

applications in the diversified areas like catalyst support, as insulator in transistors for nanoelectric

devices, solid oxide fuel cells, optoelectronic, piezoelectric and nanocomposite devices .In the

present study ,We report hydrothermal synthesis of nanozirconia quantum dots exhibiting variable

photo luminescence at different excitation wavelengths. Nano Zirconia quantum dots were prepared

by single step hydrothermal synthesis followed by reduction of Zirconyl Oxy chloride

(ZrOCl2.8H2O) solution with wet leaf extract of Syzigium cumini (S.cumini) in absence of surfactant

and a base, which opens a new avenue for designing novel luminescent nano Zirconia quantum dots.

The ultraviolet-visible spectrum of the aqueous medium containing zirconia nanoparticles showed an

absorption peak at around 262 nm. Powder X-ray diffraction showed that the particles are crystalline

in nature, with an average size of ~2.06nm comprising tetragonal ZrO2 structure. Photoluminescence

Spectra has shown a sharp visible emission peaks at 730 nm and 603 nm, broad emission peaks at

450 nm ,500 nm,520 nm and 580 nm at varying excitation wavelengths ranging from 300-400nm

.The most needed outcome of this work will be the development of pure nano quantum dots using

the plant extract which contains different flourophores, greatly used in bio-medical, opto electronic

and electro chemical sensing applications.

Keywords: Hydrothermal; Nano Zirconia; Quantum dots; Photoluminescence.

Acknowledgements DST, INSPIRE AORC Fellowship is greatly acknowledged for providing financial assistance.


ICMM:242 | Impact of Phytosynthetic Nanomagnetite Particles on Elusine

Coracana (Finger millet) Hydroponic Seed Germination

M. Hasheena1, A. Ratnamala*1, G. Deepthi Reddy2, M. Noorjahan2

1*

Department of H &S, Gitam deemed to be University, Bangalore, Karnataka 2Department of Chemistry, Palamuru University, Mahabubnagar, Telangana


Abstract

To meet the growing demand of food in the developing nation like India, which is the second

largest populated country in the world and need much focus on the increase in crop production to

feed such a huge population? To meet this demand of food, researchers need to focus on the

development of eco-friendly agricultural production technologies. Nanoparticulate material delivery

to plant technology also holds the promise of controlled release of agrochemicals and site targeted

delivery of various micronutrients needed for improved productivity, plant disease resistance,

efficient nutrient utilization and enhanced plant growth. Nanoparticles mediated plant growth has the

potential for improved agricultural productivity.

In this study, microwave assisted phytosynthetic magneto sensitive magnetite nanoparticles had

been synthesized from aqueous Hibisus Rosasinensis leaf extracts, which acted as a reductant

and stabilizer simultaneously. The phytosynthetic magnetite nanoparticles acts as a nanofertilizer

which enhances the seed germination (hydroponics) in Eleusine coracana (Finger Millet) commonly

called as Ragi seeds. The nanomagnetite particles are characterized by XRD, SEM, FTIR and TEM.

The Nano Magnetite Fe3O4 visualizes enormous beneficial aspects in enhancing growth performance

(seed germination) in terms of root length and shoot length of Eleusine coracana (Finger Millet)

seeds.

Fig.1. Eleusine coracana seed germination (a) on day-2 and (b) day-6

Keywords: Magneto-Sensitive Magnetite, Hibiscus rosasinenis, Eleusine coracana, Seed

germination, Hydroponics

Acknowledgements The author greatly acknowledged the Gitam Deemed to be University, Bangalore for the support.


ICMM:244 | Thermoacoustic Investigations on Nanofluids

Swapnali P. Rajmane1, Pratiksha D. Donolikar1, V.A. Sawant2, S. B.

Sadale2* 1School of Nanoscience and Technology, Shivaji University, Kolhapur 416004 India

2*Department of Technology, Shivaji University, Kolhapur 416004 India



Abstract

Nanofluids have a great attention because it has an enormous potential to improve the

efficiency for heat transfer systems owing to its high thermal conductivity. For any nanofluid to be

usable in heat transfer applications, the main concern isits thermal conductivity. In this work, iron

oxide nanoparticles were synthesized using cost-effective chemical method. The nanostructured iron

oxide were characterized by various characterization techniques viz., X-ray diffraction (XRD),

Scanning Electron Microscope (SEM) etc. The iron oxide based nanofluids of different

concentrations in the range 0.02%, to 0.2% were prepared.The size of nanoparticles used was 20nm.

A comprehensive correlation of ultrasonic velocity and thermal conductivity is proposed based on

theory and experimental observations. The effect of concentration on ultrasonic velocity,

compressibility and thermal conductivity thereby was studied. Such approach can be useful in

studying the relationship between various prepared nanofluids such as ultrasonic velocity, thermal

conductivity, electrical conductivity, compressibility etc.

Keywords: Iron oxide nanoparticles, nanofluids, ultrasonic interferometer, thermal conductivity,

heat exchangers.

Acknowledgements

The authors are very thankful to department of technology, Shivaji University Kolhapur for

providing research facilities.



ICMM:249 | Synthesis and Magnetic Properties of Nanostructured Ni1-

xZnxFe2O4(x = 0.4, 0.5 and 0.6)

Bhumireddi Sattibabu1*, T. Durga Rao1, A. K. Bhatnagar2,

S.Rayaprol3, V.Siruguri3 and D. Das2

1Department of Physics, Institute of Science, GITAM (Deemed to be

University), Visakhapatnam, Andhra Pradesh-530045, India 2

School of physics, University of Hyderabad, Hyderabad 500046, India 3UGC-DAE Consortium for Scientific Research, Mumbai Centre, BARC

Campus, Mumbai-400085, India


Abstract

Nanostructured Ni1-xZnxFe2O4(x = 0.4, 0.5 and 0.6) samples are prepared by auto-combustion

method. The compounds are formed in the cubic spinel phase without any impurity as seen from the

XRD data. Increase in lattice parameters and volume of unit cell with the Zn content could be

understood because of substitution of larger ionic sizes of Zn2+

(0.74 Å) and Ni2+

(0.69 Å) in place of

Fe3+

(0.60 Å) The crystallite size increased with the Zn content. FESEM analysis reveals a non-

uniform size distribution in grain sizes with the Zn content. All the prepared compounds maintained

(Ni, Zn) and Fe stoichiometry in the ratio close to 1:2 as observed using EDAX measurements.

Magnetic properties are investigated using a VSM magnetometer. The magnetic parameters, such as

saturation magnetization (Ms), coercive field (Hc), remnant magnetization (Mr) and Bohr

magneton (μB), are determined and are compared with the reported values. The saturation

magnetization decreases gradually with increase in the Zn concentration. Anisotropic constants (K)

of Ni1-xZnxFe2O4, estimated from the magnetization curve measured at room temperature (~300 K)

are 1.5 104

J/m3for x = 0.6, 1.9 10

4 J/m

3for x= 0.5 and 1.6 10

4 J/m

3for ~x=0.4 which are in good

agreement with the previously reported values.

Keywords: Spinel structure, magnetic properties, anisotropic constant

Acknowledgements

This work has been supported by UGC-DAE Consortium for Scientific Research, Mumbai Centre,

India in the form of a collaborative research scheme (CRS) through project number CRS-M-289.

AKB thanks support from INSA under its Senior Scientist scheme.

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ICMM:250 | Study of Microstructure and Thermal Properties of PbTiO3

based Glass Ceramics

J. Shankar1*, A. Shiva Kumar1, J. Anjaiah1, P.Raju1, G. Neeraja Rani1 and V.K. Deshpande2

1Geethanjali College of Engineering and Technology, Hyderabad-501301, India

2Visveswaraya National Institute of Technology, Nagpur, 440010, India


Abstract

Glass samples with composition (35- X) B2O3 - (40 +X) PbO - 25 TiO2 (where X= 0, 2.5,5,

7.5 and 10 mol %) were prepared using conventional quenching technique. These glass samples were

converted to glass ceramics by following two stage heat treatment schedule. The density (ρ) values of

glass ceramic samples are higher than those of corresponding glass samples. It was observed that

there was good correlation between the density and Coefficient of Thermal Expansion (CTE) results

of the glass–ceramics. The XRD results in the glass ceramics revealed the formation of tetragonal

lead titanate (PbTiO3) as a major crystalline phase and lead borate (PbB2O4) as minor crystalline

phase. The microstructure of glass ceramic samples contains nano crystallites of lead titanate

embedded in a borate glass matrix.

Keywords: Glass; Glass Ceramics; Thermal Expansion, SEM.


ICMM:252 | Radionuclide Sorption onto Nanoiron Oxy Hydroxide: Synthesis

and Application to Natural Waters

Dasari Vasundara, Susarla Siva kumar, Thaticharla Kaleswararao

and Duvvuri Suryakala*

Department of Chemistry, GITAM Institute of Science, GITAM University,

Visakhapatnam, India,

*Corresponding author. Mobile: +(91) 9490131914; Mail:

[email protected]

Abstract

The increased demand for the lanthanides in commercial products result in increased

production of lanthanide containing ores, which increases public exposure to the lanthanides, both

from various commercial products and from production wastes/effluents. This work investigates the

efficacy of γ-Fe2O3 for rapid removal of some of the most toxic and radioactive long-lived human-

made radionuclides from natural water. Nano metal oxides have been successfully prepared by

precipitation synthesis followed by thermal decomposition of transition metal oxides, These are

further characterized by different physico-chemical techniques like XRD, UV-Vis-DRS, TEM, FTIR

and BET analysis. Adsorption capacities of target REEs such as La(III), Nd(III), Gd(III), and Y(III)

are observed through ICPAES technique. The parameters influencing the adsorption capacity of the

target species including contact time, pH, initial concentration, and temperature were optimized. The

adsorption kinetics and thermodynamics were studied. These results proved that nano metal oxides

(γ-Fe2O3) have been successfully prepared by precipitation synthesis followed by thermal

decomposition of transition metal oxides, and followed a simple methodology to mollify the severity

of nuclear waste contamination, thereby leading to effective measures for environmental

remediation.

Keywords: Nano iron oxy hydroxide, characterization, adsorption, rare earth elements.

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ICMM:255 | Research Processes of Oil and Paper Insulation of High-Voltage

Equipment during Operation

G. Sree Lakshmi 1, Rubanenko Oleksandr2, Rubanenko Olena1, Hunko

Iryna2

1Regional Innovational Center at the Faculty of Electrical Engineering University of

West Bohemia, Plzen, 306 14, Czech Republic 2 Department of Electric Stations and Systems of Vinnytsia National Technical University, 21000,

Vinnytsia, Ukraine

Corresponding author. Mobile: (+91) 8897893714; E-mail: [email protected]

Abstract

In this work was analysed the influence of thickness and density of paper, grade of mineral oil

on short-term electrical strength. The characteristics of the insulating papers of the permeable

composition largely determine the electrical strength of the paper-oil insulation.Since paper-oil

insulation consists of a series of successive layers of paper and oil, it is advisable to present such

insulation by the equivalent scheme shown in fig. 1, in which the thickness of the paper-oil dielectric

is divided into two layers: paper (fiber) and mineral oil, connected in series.

a) b)

Fig.1 – Equivalent paper-oil insulation scheme: a - to calculate the voltage on the oil layer; b - to

calculate the dielectric loss in insulation.

The increase in the dielectric constant of the paper is accompanied by an increase in the tension in the oil

layers of paper and oil insulation, which promotes the development of discharges in these layers and facilitates

the breakdown of the insulation. As a result, the effect of paper density has a different effect on the short-term

and long-term strength of the insulation. In determining the short-term strength, the influence of the first factor

prevails, which contributes to its increase with increasing paper density. For example, by increasing the

density of paper from 0.7 to 1.3 g/cm3, the electrical strength of sheet insulation (flat samples) increases by

60%.However, in determining the long-lasting strength, partial breakdowns in the oil layers lead to

considerable destruction of the insulation. In this case, as the paper density increases, the breakdown strength

is reduced and the insulation life is shortened.

Keywords: Paper-oil insulation, dielectric constant, breakdown voltage.

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author.


ICMM:259 | An Improved Active Frequency Drift Islanding Detection Using

Fuzzy Logic Technique Dr. A. Jaya Laxmi*, R. Pradeep, Ch. Anjamma, Etneni Rama Krishna

JNTUHCEH, HYDERABAD, 500085, INDIA


Abstract

Renewable energy is a rapidly growing sector that is not the source of pollution produced by

nuclear and fossil generation systems. Renewable energy consumption for Distributed Generation

(DG) is significant worldwide because it increases profitability, since it is integrated into consumer

systems to ensure power supply at points of consumption even when DG system is disconnected

from the main system.

In situations like natural disasters and fault conditions it becomes difficult to supply

the power from conventional energy resources to the loads that are connected to the

secondary distribution network. Often it requires that the Distribution Energy Resources

(DERs) are connected to the secondary distribution network. In situations like fault on grid side

or to feed power from distributed resources to secondary network loads, the secondary network

should be isolated from the grid. In order to switch the loads from grid side to DERs and to

prioritize the loads, it requires control strategies. In general, the control uses the under

frequency, negative sequence currents and impedances of the fault line as parameters.

The algorithm is proposed for Low Voltage (LV) DC distribution system is difficult to

obtain control by frequency, negative sequence currents as parameters.

This paper proposes a technique by using voltage, current and active power of the

network as parameters for islanding loads in LVDC distribution system. An algorithm is

proposed using Adaptive Neural Fuzzy Inference Systems (ANFIS) to generate boundary

conditions for the outputs that are produced from the control unit for intentional islanding of

loads in LVDC distribution system.

Keywords: DERs, Solar Photo Voltaic (PV) Module, LVDC, Intentional Islanding, ANFIS

Controller.

Acknowledgements:

I thank TEQIP-II, JNTUHCEH for providing necessary infrastructure.

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ICMM:262 | CNT-TiO2 Coated Silicon PV Cell for improved conversion

efficiency

Mohammed Fayaz1, K.V. Sharma2, P.H.V. Shesha Talpa Sai3 M Tech , Centre for Energy studies, JNTUHCEH1

Professor, Centre for Energy studies, JNTUHCEH2

Professor, Department of Mechanical Engineering, MRCET Hyderabad3

Abstract

Conventional multi crystalline silicon wafers used in photovoltaic applications offer low

electrical conversion efficiencies due to various loss mechanisms. The challenges, such as photon

absorption, charge separation and carrier collection, in conversion of photon energy to electrical

energy using PV cells, can be influenced by coating the active surface of the cell with nano materials

as anti-reflection coating. Carbon Nano Tubes (CNTs)in combination with TiO2are having superior

electrical conductive properties that can be used in many other applications apart from photo voltaic

application. TiO2 is prepared using a two step sol-gel method using titanium isopropoxide as

precursor. Single walled CNTs is grown using chemical route synthesis.CNTs and titanium dioxide

nano particles prepared using this simple and scalable method offers good photo-electrochemical

properties. Both CNTs and TiO2 are spray coated on bare multi-crystalline silicon solar cell. The

extensive surface area of CNTs due to their vertical alignment and excellent anti reflective properties

of TiO2 are useful in tuning the band gap energy of the AR coating with reduced recombination rate

and enhanced photocurrent. Characteristic studies on these CNTs and TiO2are to be conducted for

enhanced conversion efficiencies of multi crystalline silicon solar cells compared to bare and SiN

coated mc-Si cells.

Keywords: Multi-crystalline solar cells, CNTs, TiO2, AR coatings.


ICMM:263 | A Study Of Dielectric Relaxation Properties of ZnFe2-xBixO4

nano Ferrite Particles Synthesized by Sol-gel Combustion Method N Suresh Kumar

Department of Physics, VNR Vignana Jyothi Institute of Engineering and Technologyy,

Hyderabad, Telangana. 500090, India.

*Corresponding author. Mobile: (+91) 9573979051; E-mail: “[email protected]”

Abstract

A series of bismuth doped zinc nano ferrite particles with the particular formula ZnFe2-xBixO4

(x = 0.00, 0.05, 0.10, 0.15, 0.20 & 0.25) were prepared by sol-gel combustion method; and these

compositions were sintered at 600oC for 5 hrs. With the effect of bismuth doping, the structural

properties of all prepared samples were characterized by X-ray diffraction (XRD). The X-ray

diffraction spectra analyses confirm single phase cubic (FCC) spinal structure. The average

crystallite size (D) of the samples found to be in the range 17-20 nm. The dielectric properties viz.,

dielectric constant (ε'), dielectric loss tangent (tan δ) and AC conductivity (σAC) were measured at

room temperature in the range 20Hz to 2MHz, which confirm the normal ferrite behavior. In the

present research work, we are intended to extend dielectric relaxation studies of these samples with

the help of Cole-Cole plots. The Cole-Cole plots of the bismuth doped zinc ferrites were drawn as a

function of ε' and ε'' (where, ε''=ε' tan δ) and hence we have determined the spreading factor (β) for

all the samples. It was observed that β decreases with the increase of the concentration of B2O3. It is

noticed that the dielectric parameters ε', tan δ and σAC have exhibited the similar trend. These samples

may find suitable applications in electrolytic elements in battery technology.

Keywords: Bi-Zn nanoferrites; sol-gel combustion method, AC conductivity and dielectric constant,

cole-cole plot, and spreading factor.

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ICMM:268 | Facile synthesis of MnWO4 nanostructure for supercapacitor

application

Pratiksha D. Donolikar1, Sagar D. Jadhav1, Deepak P. Dubal2, Deepak R.

Patil3*, Shivaji B. Sadale4* 1School of Nanoscience and Technology, Shivaji University, Kolhapur (M.S), India

416004 2School of Chemistry, Physics and Mechanical Engineering, Queensland University of

Technology, Brisbane, Australia 3*

Centre for Materials for Electronics Technology, Ministry of Electronics and

Information Technology(MeitY), Govt. of India. Pune, 411008, India 4Department of Technology, Shivaji University, Kolhapur (M.S), India 416004

*Corresponding Author: Mobile: (+91) 8552879043; E-mail: [email protected]

Abstract

Supercapacitors are new energy storage devices with unique features such as high power

density, high capacitance and a long life than batteries. Finding supercapacitive materials with high

energy density with good rate capability is still challenging. Here, we have synthesized MnWO4

nanostructure by facile hydrothermal method and studied their supercapacitive properties. The

structural and morphological analysis and measurements were done using x-ray diffraction, scanning

electron microscopy, energy dispersive x-ray diffraction. Asymmetric supercapacitor was fabricated

with graphite as anode and MnWO4 as cathode on carbon cloth substrate and studied its

electrochemical properties using 1 M Na2SO4 as the electrolyte. The effect of potassium iodide (KI)

addition to electrolyte on electrochemical properties was studied. Maximum specific capacitance of

450 F/gm was achieved with capacitive retention 85% for 5000 cycles for three electrode system.

Energy density without KI was 51 Wh/kg which is increased by addition of KI to 99 Wh/kg.

Keywords: MnWO4 nanostructures; Supercapacitor; KI – Potassium iodide.

Acknowledgements

The authors are thankful to School of Nanoscience and Technology, Shivaji University, Kolhapur for

awarding me with departmental fellowship (DRF).

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ICMM:270 | Phase Transitions in Dense Thermo-responsive Microgel

Suspensions: A Monty Carlo Study

Sivaram Vintha, Ranajay Datta, B.V.R. Tata*

School of Physics, University of Hyderabad, Hyderabad-500046, India


Abstract

Aqueous suspensions of monodisperse colloidal particles exhibit structural ordering under

suitable conditions. Deionised suspensions of charged polystyrene particles exhibit long-range order

for volume fraction ϕ> 0.001, whereas suspensions of hard-spheres undergo crystallization at ϕ >

0.48. In these dispersions the particle size is fixed and the temperature(T) is not a controllable

parameter to investigate the phase transitions. Whereas aqueous suspensions of thermo-responsive

poly(N-isopropylacrylamide)(PNIPAM) particles exhibit rich phase behaviour upon varying T as

well as osmotic pressure due to the variation in particle size as well as interparticle interactions.

Recently Bergeman et al have proposed Multi-Hertzian (MH) pair potential. MH pair-potential is

expected to represent the interparticle interaction between PNIPAM microgel spheres upto their

volume phase transition (VPT) temperature (VPT ~34°C).The applicability of this potential is

verified only in the fluid region (up to ϕ=0.49) of PNIPAM microgels. Its applicability in

understanding the ordering, dynamics and the phase behaviour of microgels under dense conditions

needs to be investigated. Further, recent experiments on dense PNIPAM microgels showed (a)glass

transition upon lowering the temperature from VPT, (b) a stable FCC-HCP coexistence beyond ϕ >

0.74 and particle dynamics at short times being sub-diffusive. Motivated by these observations we

have performed canonical ensemble Monte Carlo (MC) simulations with MH potential for different

volume fractions (ϕ) and for varying temperatures and the results are reported here. Microgel

suspension parametersused in our simulations are same as that reported by Bergeman et al. Our

simulations show fluid (F) behaviour upto ϕ < 0.6, which is found to freeze into a glassy (G) state

upon increasing ϕ. The glassy state was found to transform to a crystalline (C) state beyond a volume

fraction of 0.64. Simulations results are discussed in light of experimental results on dense

suspensions of PNIPAM microgel spheres.

Keywords: Poly (N-isopropylacrylamide) (PNIPAM); volume phase transition (VPT) temperature;

Multi-Hertzian pair potential (MH).

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ICMM:278 | Synthesis and characterization of ZnO-CuO nanocomposites

K. Kavitha*, Dr. T. Subba Rao, Dr. R. Padma Suvarna 1Research Scholar, Department of Physics, Jawaharlal Nehru Technological University,

Ananthapur-515002, Andhra Pradesh., INDIA 2Professor, Department of Physics, SK University, Ananthapur-515002, Andhra Pradesh,

INDIA 3Professor, Department of Physics, Jawaharlal Nehru Technological University,

Ananthapur-515002, Andhra Pradesh, INDIA

Mobile: (+91) 9493984573; E mail:[email protected]*

Abstract

In this work, we present the synthesis and characterization of nanoparticles suitable for

semiconductor applications using a simple and economical sol-gel process. ZnO-CuOis the potential

material because of its high thermal stability and low cost. Properties of the ZnO-CuO

nanocomposites are size dependent and when the particle size is reduced to the nanometer scales it

shows some novel properties. Sol-Gel method is a good method to synthesis ultrafine metallic oxide

nanocomposites and has been widely used for preparing nanoparticles at very low temperatures.

Nano-structured ZnO-CuO has been characterized by using various techniques like XRD, SEM, and

DSC-TGA. The phase transformation was investigated by an X-ray diffractometer (XRD). The

microstructure was characterized by a scanning electron microscope (SEM). DSC-TGA analysis was

used to investigate the thermal properties of the material.

Keywords: ZnO-CuO; Sol-Gel method; XRD; SEM; DSC-TGA.

Acknowledgements

We thank Dr. Shilpa Chakra, Head of the Dept., Dept. of Nanotechnology, and JNTUH for allowing

performing the experimental work under internship.

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ICMM:284 | Enhanced Thermal Stability Regime in K0.5Na0.5NbO3-Ta2O5-

CO3O4 for Multilayer Ceramic Capacitor Applications

Cilaveni Goutham, Abhinav Kumar, Saket Asthana1* 1Advanced Functional Materials Laboratory, Department of Physics, Indian Institute of

Technology Hyderabad, Kandi(V), Sangareddy(dist), Telangana-502285, India

*Corresponding author. Mobile: (+91) 040 2301 6067; E-mail: [email protected]

Abstract

The search for electronic materials for device applications capable of operating in extreme

environmental conditions has been a significant challenge for scientists and engineers. Mostly,

market dominant high temperature Multilayer Ceramic Capacitors (MLCCs) used for various

applications, such as automotive, aeronautics, and nuclear industries are fabricated using BaTiO3

(BTO) based materials. The purpose of this study was to explore new material systems with higher

thermal stability than state of the art X7R materials, retaining high dielectric constant. K0.5Na0.5NbO3

(KNN)-based lead-free piezoelectric ceramics have received considerable attention due to their

potential piezoelectric properties, comparable with the market dominant lead based piezoelectric

ceramic (i.e., PZT) devices. Like BTO-based dielectric ceramics, formation of duplex core-shell

grain structure in KNN-based systems could induce an interesting effect on dielectric and

piezoelectric properties. The incorporation and influences of Ta and Co co-doping on the electrical

properties and microstructural evolution along with structural changes were investigated on ceramics

in the ternary system KNN-Ta2O5-Co3O4 (KNN-Ta-Co). KNN powders were synthesized by the

hydrothermal method with an average particle size of ~1μm. The KNN powders were weighed and

mixed with Ta2O5 and Co3O4 in desired compositions. The reaction of Ta2O5 and Co3O4 with KNN

has yielded secondary phases in the ternary system. The substitution of Ta and Co felicitates phase

segregation, evidenced by the appearance grain size variance in the microstructure. A decrease of

ferroelectric-paraelectric (Tm) and orthorhombic-to-tetragonal phase transition temperatures was

observed with substitution of Ta2O5 and Co3O4 in KNN. Moreover, dielectric constant (εr = 4050 at

100kHz) at Tm for KNN-Ta-Co is decreased in comparison with pure KNN (εr = 4250 at 100kHz)

along with the decrease in Tm = 380oC (pure KNN, Tm = 410

oC). Thus, based on the aforementioned

observations and analysis, it can be inferred that the KNN- based systems can be considered as a

pertinent candidate in the field of MLCCs.

Keywords: KNN-based; Dielectrics; Core-shell structures.

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ICMM:286 | Surfactant Assisted Synthesis of Ruthenium Oxide

Nanoparticles for High Performance Supercapacitors

N. Varalakshmi a, A. Lakshmi Narayana, Yejun Qiubb, O.M. Hussainc, N.Y. Sreedhara* aElectroanalytical lab, Department of Chemistry, Sri Venkateswara University, Tirupati,517502, India.

b Shenzhen Engineering Lab of Flexible Transparent Conductive Films, Department of Materials Science and

Engineering, Harbin Institute of Technology, Shenzhen, 518055, China. cThin films Laboratory, Department of Physics, Sri Venkateswara University, Tirupati-517502, India.

Corresponding author email address: [email protected]

Abstract

Ruthenium oxide (RuO2) nanoparticles were prepared by surfactant assisted Co-precipitation

method with four different calcination temperatures from 100-400 °C. This present investigation is

aimed to study the effect of calcination temperature on the structural, morphological and

electrochemical properties. The XRD spectrum of calcined temperature at 300 °C exhibited high

intensity (111) orientation corresponds to cubic phase with Pa3 (205) symmetry. The variation in

calcination temperature in the synthesis process has strongly effect the structure and surface

morphology. The SEM analysis reveals as increasing calcination temperature the grain size is also

increased. The estimated average grain size is ranging from 50-150 nm respectively. The

electrochemical properties of RuO2 prepared at calcination temperature 300 °C shows perfect

rectangular shaped cyclic voltammetry curves representing pseudocapacitive behavior. The RuO2

electrode exhibited specific capacitance of 902 F g-1

at 1 A g-1

and retained 94% of capacitance even

after 4000 cycles. The outstanding electrochemical results proved that the surfactant assisted Co-

precipitation synthesized RuO2 (at calcination temperature 300 °C) is promising electrode for high

storage supercapacitor.

Keywords: Ruthenium oxide (RuO2), surfactant assisted Co-precipitation, Calcination temperature,

cyclic voltammetry, supercapacitor.


ICMM:287 | The Impact of Various Concentrations of Dopant on The

Properties of Mn Doped Zns Quantum Dots in Presence of Thourea as

Capping Agent

Bijimol. D, Mamatha Susan Punnoose, Beena Mathew* School of Chemical Sciences, M.G. University, Kottayam, Kerala.

Corresponding Author: Email: [email protected]

Mobile: 9447145412

Abstract

In this work the impact of various concentrations of dopant ion on the structural and optical

properties of Manganese doped ZnS Quantum Dots (Mn ZnS QDs) in presence of a capping agent

has been investigated. Mn ZnS QDs with various concentration of Manganese were prepared by

simple, water based chemical precipitation method. The prepared Quantum Dots were characterized

by various techniques like X-ray diffraction spectroscopy (XRD), Scanning electron microscopy

(SEM), UV-vis. Spectroscopy, FT-IR spectroscopy; diffuse reflectance spectroscopy (DRS) and

Fluorescence spectroscopy (PL). The results revealed that the surface morphology, size and optical

properties of the Mn ZnS QDs were varied by dopant ion concentration. With increase in

concentration of dopant ion the absorption edge is shifted to lower wavelengths, as clear from the

obtained UV-vis. spectra of samples. FT-IR and PL results confirmed the incorporation of

Manganese into ZnS crystal structure, and XRD results showed that Mn ZnS nanoparticles

crystallized in a zinc blende structure without any impurity. PL intensity of the Mn ZnS QDs were

compared, and Mn ZnS QD (Mn 1mM) was found to have the highest PL intensity. In the

Photoluminescence spectra for the undoped ZnS QDs a blue peak at 450nm is obtained and for the

manganese doped ZnS QDs an orange peak centered at 598nm is observed in addition to blue

emission.

Keywords: Quantum dots, band gap, absorption edge.

Acknowledgements

Financial assistance is provided by UGC(under FDP scheme),Government of India is greatfully

acknowledged.



ICMM:288 | Green Synthesis, Characterization and Catalytic property of

Gold Nanoparticles using Biophytum sensitivum Leaf extract

Mamatha Susan Punnoose, Bijimol D, Beena Mathew*

School of Chemical Sciences, Mahatma Gandhi university, Kottayam 686 560, Kerala,

India


Mobile: 9447145412

Abstract

Biomediated methods of noble metal nanoparticles are feasible alternatives to physical and chemical

methods as they are safe, cost effective and non toxic. The prospect of exploring natural resources

like plant extracts for the synthesis of nanoparticles has become competent and environmental

benign. The present work introduces a microwave assisted one pot green synthesis of gold

nanoparticles using the fresh leaves of medicinal plant, Biophytum sensitivum as both the reducing

and capping agent. The synthesized stable gold nanoparticles show a characteristic surface plasmon

resonance peak in UV-visible absorption spectrum. The phytochemicals in the plant extract

responsible for the reduction of metal ions are obtained from Fourier Transform Infra Red analysis.

X-ray Diffraction study confirms the crystalline nature of nanoparticles. The diffraction peaks

corresponding to (111), (200), (220) and (311) planes correspond to face centered cubic geometry of

nanoparticles. Transmission electron microscopic analysis shows that the nanoparticles are almost in

spherical shape. The catalytic property of synthesised green gold nanoparticles is monitored by the

reduction of an azo dye, Congo red by sodium borohydride. And the degradation reaction follows

pseudo first order kinetics.Degradation of organic dyes is a major concern in the present scenario due

to its stability, fastness to sunlight, and resistance to degrading agents or microbial attack. It is easily

achieved by metal nanoparticles synthesised by green route. The high catalytic potential of metal

nanoparticles is attributed to its smaller structure and large surface to volume ratio.

Keywords: Microwave; Green; Gold nanoparticle; Biophytum sensitivum; Catalysis; Congo red

Acknowledgements

Financial assistance from UGC (JRF) is greatfully acknowledged.

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ICMM:289 | Structural and Thermal Properties of Ni-doped Molybdenum

Disulfide (MoS2) Synthesized via a One-Step Hydrothermal Method

Niharika Chourasiya1*, Arun Kumar Singh, Aksh kumar Verma and Ashish

Verma Dr. Harisingh Gour Vishwavidyalaya, Sagar (M.P.), 470003, India

*Corresponding author. Mobile: (+91) 9479366805 ; E-mail: [email protected]

Abstract

In the present work, Nickel (Ni) doped molybdenum disulfide (MoS2), (MoS2:Ni)has been

synthesized via a facile one step hydrothermal method using ammonium molybdate

tetrahydrate[(NH4)6Mo7O24.4H2O], thioacetamide [CH3CSNH2] and nickel metal powder as

precursors. The structural properties of the synthesized material were characterized by Powder X-

Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR). Indexing of the peaks in

the XRD plot of the material indicates the formation of 2H- MoS2crystal structure. There is not much

difference between 2H-MoS2 XRD plot and MoS2:Ni XRD plot which confirms the successful Ni

doping in the molybdenum sites of MoS2. Presence and percentage of doped nickel in the sample has

been determined by Energy Dispersive X-Ray Spectroscopy (EDX) characterization for the

elemental analysis. Scanning Electron Microscopy (SEM) has been used for morphological studies.

Crystallite size and lattice strain of the prepared sample has been obtained by the Scherrer’s method

and W-H plot method respectively. For the analysis of thermal properties, Differential Scanning

Calorimeter (DSC) and Thermo-Gravimetric Analyzer (TGA) techniques have been used, which

shows that the material has good thermal stability.

Acknowledgements

Authors are grateful to UGC-DAE Consortium, Indore (M.P.) India for XRD characterization and

Dr. Harisingh Gour Vishwavidyalaya, Sagar (M.P.) India, for financial support during the research.

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ICMM:290 | Thermoelectric Properties of Topological Semimetal LiAuTe Anita Yadav1, Shailesh Kumar2,3, Manoharan Muruganathan4, Rakesh Kumar1* 1Department of Physics, Indian Institute of Technology Ropar, Punjab-140001, India

2School of Chemistry, Physics and Mechanical Engineering, Queensland University of

Technology, Brisbane, QLD 4000, Australia 3Manufacturing Flagship, CSIRO, Lindfield West, New South Wales 2070, Australia

4School of Materials Science, Energy and Environment Area, JAIST, Nomi 923-1292, Japan


Abstract

The study of topological semimetals and insulators have become a keen interest in the field of

solid-state physics which are known to possess properties that enhances the performance of a

thermoelectric (TE) material1,2

. In our study, we have performed ab initio calculations on non-

centrosymmetric ternary Half-Heusler (HH) compound, LiAuTe. The presence of spin-orbit coupling

results in the s-p band-inversion near the Fermi level and thus may be categorized as topological

semimetals. To understand its TE performance, transport properties are studied using Boltzmann

transport theory. The relatively lower value of lattice thermal conductivity of LiAuTe than other

conventional ternary compounds3, improves its performance as a potential TE material. Thus, the

findings may create more opportunities in experimentally realizing HH alloys as TE materials.

Keywords: Thermoelectric materials; ab initio calculations; Half-Heusler

Acknowledgements

We would like to thank MHRD for the award of research fellowship and also IIT Ropar for

providing the High Performance Supercomputing facility and research support.


ICMM:294 | Biogenic Fabrication of Palladium Nanoparticles and its

Applications

K. Sandhya1, K. Girija Mangatayaru1* 1Department of Chemistry, Palamuru University, Mahabubnagar, T.S-509001.

*Corresponding author: Mobile :+919490148751; E-mail: [email protected]

Abstract

The Multifunctional Palladium nanoparticles have varied applications in many catalytic

reactions such as Reductions, Oxidations and Carbon-Carbon Coupling reactions as heterogeneous

catalyst and also in Anti-microbial; Anti-inflammatory activities .The biosynthesis of Metal

nanoparticles is the Simple, Cost- effective, Non-toxic, Bio-Compatible, Eco-friendly and

Economical method for the formation of Nanoparticles.Herein, we report that, the Phyto molecules

present in Azadirachta Indica act as reducing and stabilizing molecules for bio-synthesis of nano

sized palladium nanoparticles. The synthesized nanoparticles were found to be crystalline in nature.

The biosynthesized nanoparticles were characterized using UV-Visible spectrophotometer, FTIR,

XRD and SEM. These nanoparticles were found to involve in the Catalytic reduction of organic

compounds like Nitro phenols. Further, the palladium nanoparticles properties and other applications

are to be evaluated.

Keywords: Biosynthesis, Palladium nanoparticles, XRD, SEM.



ICMM:295 | Spin Transport Propertiesof CoFeCrGa/GaAs/CoFeCrGa through

First Principles Calculations

P. Rambabu1,2*, V. Kanchana1

1Department of Physics, IIT Hyderabad, Kandi, Sangareddy- 502285, T. G., India.

2Department of Pure and Applied Physics, Guru Ghasidas Vishwavidyalaya, Koni,

Bilaspur-495009, India.


Abstract

Half metallic ferromagnetic materials have applications in spintronic devices because of their high

spin polarization. Spin gapless semiconductors belong to the class of half metals that have fully spin

polarized carriers at the Fermi level so that they exhibit large magnetoresistance and low spin

relaxation (Gilbert damping). Here in we report the electronic structure, magnetic exchange coupling

properties of LiMgPdSn-type spin gapless CoFeCrGa material through First principles calculations.

Also CoFeCrGa/ GaAs/CoFeCrGa magnetic tunnel junction is constructed and its spin transport

properties are calculated based on the density functional theory combined with non-equilibrium

Green’s function methods as implemented in QuantumATK package.

Keywords: Spin gapless semiconductors, Tunnelling magnetoresistance, spintronics.


ICMM:297 | Structural, Morphological, Optical, Luminescence and Gas

Sensing Characterization of Pure and Ce Doped SnO2 Nanoparticles

Synthesised by Hydrothermal Method

D. Sunil gavaskar1, Y. Vijayakumar2, P. Nagaraju2, M.V. Ramana Reddy1

1Thin films and nanomaterials research laboratory, Dept. of Physics, Osmania

University, Hyderabad-500007. 2Nanosensor Research Laboratory, Dept. of Physics, CMR Technical Campus,

Hyderabad-500007.

*Corresponding author. Mobile : +919966258085, [email protected]

Abstract

SnO2 and Ce doped SnO2 nanoparticles were synthesised by using low cost hydrothermal method. All

the samples were characterised by using X-ray diffraction (XRD), Scanning electron microscopy (SEM) with

EDAX, Fourier transform infrared spectroscopy (FT-IR), PL spectrophotometer and UV-Vis

spectrophotometer. XRD confirms the polycrystalline nature of the nanoparticles with preferred orientation

along (211) direction. The lattice parameters, texture coefficients and crystallite size were determined from

XRD data. Homogeneous distribution of nanoparticles was observed by SEM. Elemental mapping and EDAX

studies confirmed the existence of Sn, O and Ce elements in the synthesised nanoparticles. The

photoluminescence (PL) studies indicate that presence of emission peaks in ultraviolet region and visible

region of the spectra and it was shifted due to the concentration of the doping element. The optical band gap

was determined using Tauc plot and it is found to decrease with the addition of cerium element. Gas sensing

characterization of pure and Ce doped SnO2 nanoparticles were carried out in static liquid distribution method

towards different concentrations of ammonia at room temperature. Response and recovery times were also

calculated and reported.

Keywords:Hydrothermal, XRD, SEM, PL and Gas sensing.

Acknowledgements: The authors thanks to the Head, Dept. of physics, Osmania University, Hyderabad. One

of the authors DSG thanks to the UGC-JRF New Delhi, and also MVRR thanks to the DST (SERB) New

Delhi, file no: EMR/2017/002651 for providing financial assistance to carry out this work.

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ICMM:301 | Improved Insulating and Dielectric Properties in Ho and Sc

Doped BiFeO3

T Durga Rao1,2*, B. Sattibabu1, Saket Asthana2#

1Department of Physics, Institute of Science, GITAM University, Visakhapatnam, Andhra Pradesh-530045,

India 2Advanced Functional Materials Laboratory, Indian Institute of Technology Hyderabad, Telangana, India

*T Durga Rao. Mobile: (+91) 7288023434; E-mail:[email protected] #Saket Asthana. Mobile: (+91) 040-23016067; E-mail:[email protected]

Abstract

BiFeO3 is one of the well-known room temperature multiferroics among all multiferroics. Its

high ferroelectric Curie temperature (TC = 1103 K), magnetic Neel temperature (TN = 643 K) and the

coupling between spin and charge in it attracts many researchers since several years. However, the

potential of BiFeO3 in device applications is limited due to the presence of oxygen vacancies and

Fe2+

/Fe3+

ions. It is impressed the researchers that the substitution of elements at A-site and/or B-site

effectively tackles these issues and improves the insulating character properties. In this work, BiFeO3

(BFO), Bi0.9Ho0.1FeO3(BHFO) and Bi0.9Ho0.1Fe0.95Sc0.05O3(BHFSO) compounds are prepared by

using convention solid state reaction method. The detailed experimental procedure can be found

elsewhere. Phase analysis of the prepared compounds is examined by X-ray diffractometer

(Panalytical X’pert Pro). The temperature and frequency variation of impedance and dielectric

properties are investigated by using Wayne Kerr 6500B impedance analyser. The X-ray diffraction

patterns of BFO, BHFO and BSFSO compounds are crystallized in R3c rhombohedral crystal

structure. However, a small phase percentage of orthorhombic structure with Pnma space group is

evidenced in BHFO and BHFSO compounds which is also confirmed from the Rietveld refinement

using Fullprof software. The grain and grain boundary resistances at different temperatures are

analysed using complex impedance studies. The activation energies obtained from the temperature

variation of grain and grain boundary resistances and ac conductivity data follow Arrhenius

equations. The obtained activation energies clearly indicate that the co-substitution of Ho and Sc

improves the insulating character of BFO. The enhanced dielectric properties are also observed in the

co-substituted BFO compound.

Keywords: Multiferroics, impedance studies, dielectric properties.




ICMM:401 | Investigation of the Structure, Dielectric and Ferroelectric

Properties of Lithium Doped Lead Free Sodium Potassium Niobate Ceramic

A. Rashid and Dr N. V. Giridharan Advanced Functional Materials Laboratory, Department of Physics, National Institute of

Technology, Tiruchirappalli 620 015, India

Corresponding author. Mobile: (+91) 9645306605; Email:[email protected]

Abstract

Presently, the most promising family of lead-free piezoelectric ceramics is based on K0.5Na0.5NbO3

(KNN).Lithium(Li+) modified Lix(KNa)1-xNbO3 (x =0.01,0.03,0.05,0.07,0.09) piezoelectric ceramics have

been synthesized by the conventional solid state processing technique sintered at 1080oC ,thereby enhancing

the ferroelectric and dielectric properties. In this work we present X-rd, dielectric permittivity and ferroelectric

measurement results of KNN ceramic doped lithium.According to XRD patterns, up to x=0.05 it exhibit single

phase perovskite orthorhombic structure, then gradually changes to tetragonal structure. Its dielectric

properties were investigated in broad frequency (from 100 Hz to 1 GHz) ranges. At room temperature

obtained results show dielectric constant increased by the percentage of doping. The comparison of

ferroelectric behaviour (P-E hysteresis loop) revealed that substituted sample obtained better saturation at

same applied electric fields at room temperature.

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ICMM:405 | Spectroscopy Studies in Predicting the Extent of Damage in

Portlandcement at Elevated Temperatures

Nari Vivek 1*, B. Mahesh Reddy 1, B Shiva Kumar 1, K Ankush 1 1Department of Civil Engineering, Geethanjali College of Engineering and Technology,

Hyderabad; 501301; India.

*phone number: 9059150943 E-mail: [email protected]

Abstract

Spectroscopy is the interaction between matter and electromagnetic radiation, which is useful in the

determination and characterisation of various chemical composition existing in the material. Present

paper, focuses on predicting the extent of thermal damage on hydrated Portland Cements (PC), using

Fourier Transform Infrared Spectroscopy (FTIR). The hydrated specimens of Portland Pozzolana

Cement (PPC) and Ordinary Portland Cement (OPC),were subjected to temperatures ranging from

27 °C - 800 °C, for aninterval of every 100 °C was analysed. Variation in the absorbance peaks

obtained from FTIR, is correlated with the Thermal analysis (TA). At temperatures beyond 400 °C,

reduction in the absorbance values at wavenumbers of 3430 – 3440 cm-1

of Ettringite phase for PPC

and OPC specimenswas observed. However, in OPC specimens, an increase in the absorbance values

of Portlandite phase at wavenumbers ranging from 3640 – 3645 cm-1

was observed. The phase

changes taking place in the PC specimens observed using FTIR, are in good agreement with the mass

loss and heat flow plots obtained from Thermal Analysis. Therefore, it can be concluded that FTIR

analysis is suitable test method in predicting the thermal damage of concrete specimen.

Keywords: Thermal Analysis; Portland Cements; Thermal behaviour; Spectroscopy.

Acknowledgements

The authors acknowledge the help provided for thermal analysis test at CAM-NIT-Warangal.


ICMM:407 | Thermal Properties of Hybrid Natural Fiber Reinforced

PolymerMatrix Composites with SiC as Filler

Devaiah Malkapuram*, Murali Krishna, N.N. Denesh, G. Sai Siddharth Reddy, J. Nithien

Department of Mechanical Engineering, Geethanjali College of Engineering and Technology, Hyderabad,

Medchal Dist. 501301, Telangana State, India.

*Devaiah Malkapuram.Mobile: (+91) 9948606326; E-mail:[email protected]

Abstract

Scientists and technologists attracted towards natural fibers like banana, cotton, coir, sisal, hemp and

jute for the application civil structures and consumer goods. It was identified the electrical resistance,

thermal and acoustic insulating properties for possessing of these natural fibers in composites.

Natural fibers have many benefits co

mpared to artificial fibers, as an example less density, less weight; low cost, specific properties and

they are recyclable and biodegradable. There aren’t any skin effects because of high strength and

stiffness, renewable. In alternative manner, there also are some limitations, as an example less

thermal stability and wetness uptake. several of them studied a major improvement in propertiesof

hybrid composites with reinforced with glass fiber in resin contenthowever it’s naturally hazard with

usage of this glass fiber content. There are many publications on review of fiber reinforced

composites, a notable research has been done on natural fiber polymer composites but research on

jute, hemp, hybrid of jute fiber and hemp fiber, hybrid (jute/hemp) fiber with SiC particulates as

filler at specific extent fractions primarily.

In this paper, hybrid (hemp and jute) fiber reinforced epoxy matrix composites were fabricated by

using hand lay-up technique of different weight percentage of hybrid fiber and SiC particulates as

filler have been studied and their thermal properties such as density, Thermal gravimetric analysis

(TGA) and Differential Scanning Calorimetry (DSC) by which we can know thermal stability of the

composites

Keywords: Natural Fibers, Hybrid fibers, SiC, Thermal properties, Hand Lay-up Technique.


ICMM:408 | Mechanical Properties of Hybrid Natural Fiber Reinforced

Epoxy Matrix Composites with SiC as Filler

Devaiah Malkapuram*, Murali krishna, N. N. Denesh, G. Sai Siddharth Reddy Department of Mechanical Engineering, Geethanjali College of Engineering and Technology, Hyderabad,

Medchal Dist. 501301, Telangana State, India.

*Devaiah Malkapuram.Mobile: (+91) 9948606326; E-mail:[email protected]

Abstract

Now a day’s waste becoming an environmental impact globally, the focus of the researchers

have to admin the problem caused by the waste. As a part of its bio-degradable materials research is

a necessary task used for automotive applications. Natural fibers mostly known as extracted fibers

from plants which are available in large scale may solve the requirements of industrial components

as well as automotive needs. The replacement of plastics with natural fiber components is one good

choice to avoid large dump of thermo and thermo setting plastics. To attain the standards of solving

desires of plastic thing replacements researches wished within the vicinity of natural fibers to obtain

the comparative properties of plastics. To expand composites with good mechanical, chemical

amendment of fibre achieved to reduce the hydrophilic conduct of fibers and the absorption of

moisture. There are many publications on review of fiber reinforced composites, a notable research

has been done on natural fiber polymer composites but research on jute, hemp, hybrid of jute and

hemp fiber, hybrid (jute/hemp) fiber with SiC particulates as filler at specific extent fractions

primarily based polymer composites are uncommon.

In this paper, hybrid natural fiber reinforced epoxy matrix composites were fabricated using

hand lay-up techniquewith different percentage of hybrid fiber and SiC filler have been studied and

their mechanical properties such as tensile strength, compressive strength, flexural strength and

hardness have been reported. It is observed that the tensile and compressive strength increases with

hybrid fiber reinforcement and SiC filler. Failure mechanism of hybrid fiber composites has been

discussed using scanning electron microscopy.

Keywords: Natural Fibers, Hybrid, Mechanical properties, hand layup Technique.


ICMM:412 |A Novel Lanthanum and Bismuth Based Self-Cleaning

Nanocomposite for Organic Pollutants

Thomas Abraham, Kannan. S, Beena Mathew* School of Chemical Sciences, M.G. University, Kottayam, Kerala.


Mobile: 9447145412

Abstract

The contamination of water bodies in the surroundings is due to the accumulation of toxic organic

pollutants such as pesticides, herbicides, dyes etc. The degradation of these pollutants are difficult

due to their severe interactions with the solvents. There are several photocatalyst synthesized for the

better degradation of these organic pollutants and severe toxic organic dyes. In this paper, an

efficient and a simple photocatalyst is prepared based on less toxic lanthanum and bismuth

nanoparticle. The synthesized binary composite consist of lanthanum and bismuth, which provides

well degradation for these pollutants. The structural identification of the synthesized binary

composite is done by FT-IR and PXRD and themorphological peculiarity of the nanocomposite is

done by using SEM and TEM analysis. The weight % optimization of the binary nanocomposite is

done by using UV spectroscopy. The results of photocatalytic studies reveal that the highest

photocatalytic activity and stability were obtained for the binary composite with (47% La) and it can

be used to oxidize 81% of methylene blue within 120 minute. The successful photodegradation of the

insecticide acepahte can be effectively done by using the synthesized binary composite. The

mechanism of the photodegradation involves the effective transfer of electrons from the valence band

of Bi2O3 to the conduction band of La2O3. The photodegradation efficiancy of the nanocomposite is

analyzed by using Total Organic Carbon (TOC) analysis.

Keywords: Pesticides, herbicides, photocatalyst, nanocomposite

Acknowledgements

The present work was supported by DST-PURSE PII (SR. 417 & SR. 416 dated 27-2-2017) and

Mahatma Gandhi University, Kottayam, Kerala, India.



ICMM:422 | Gamma Ray Interaction Studies of Some of Nucleosides in the

Energy Range 122 to 1330 KeV Pradnya L. Agale, Pooja M. Sontakke, Chaitali V. More, Dr. Pravina P. Pawar.

Department of Physics, Dr. Babasaheb Ambedkar Marathwada University,

Aurangabad: 431 004 India.

* Pradnya L. Agale. Mobile: (+91) 9527070266; E-mail: [email protected]

Abstract

The mass attenuation coefficient (μ/ρ) of certain bio molecules precisely nucleosides formed

by C,H,O and N are studied. It is calculated by using gamma ray photons varying in the energy range

122-1330 KeV. Further some derived values such as linear attenuation coefficient (μ), effective

atomic number (Zeff), effective electron density (Neff), total cross sectional area ( σtotal), mean free

path (X),molar extinction coefficient (ϵ), half value layer(HVL),tenth value layer(TVL). The

specimens studied are Thymidine (C10H14N2O5), Inosine (C10H12N4O5) and Adenosine(C10H13N5O4)

measured at 122, 356, 511, 662, 1170, 1275 and 1330 keV photon energies using a well-collimated

narrow beam good geometry set-up. The gamma -rays were detected using NaI (Tl) scintillation

detection system with a resolution of 10.2% at 662keV. The results show that, the experimental

values of mass attenuation coefficients, effective atomic numbers and effective electron densities are

in good agreement with the theoretical values with less than 1% error.

Keywords: Mass attenuation coefficients; Atomic cross-section; Electronic cross-section; effective

atomic number; Effective electron density, scintillation detection system.

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ICMM:424 | Preparation and Characterization of Cobalt Ferrite

Nanoparticles for Hyperthermia Applications

Aqsa Samreen, Farha Naaz, Shaikh Saima Anam, Shaikh Zeba Anjum, K.M.

Jadhav Dr. Babasaheb Ambedkar Marathwada University, Aurangabad.

*Aqsa Samreen, Mobile no.: 7620559926, E-mail: [email protected]

Abstract

Recently, magnetic nanoparticles are of current interest in biomedical applications. The present

paper deals with the synthesis of cobalt ferrite nanoparticles and their characterizations.The synthesis

was carried out using well known sol-gel auto combustion technique. Dextrose was used as chelating

agent/fuel in the synthesis process. The functionalization was carried out using oleic acid as a coating

agent. The phase purity and structural properties were investigated using X-ray diffraction technique

at 300K. The analysis of X-ray diffraction data proves the formation of single phase cubic structure.

The crystalite size obtained through Debye-Scherrer’s formula indicates the nanocrystalline nature

of the prepared samples. The other structural parameters like lattice constant, X-ray density etc. are

in reported range. The magnetic properties like saturation magnetization, coercivity etc. were studied

using pulsed field hysteresis loop tracer technique. The measurements were taken at room

temparature. The M-H plot shows typical ferrimagnetic behaviour with superparamagnetic nature.

The obtained values of crystalite size, lattice constant, saturation magnetization, coercivity,

remenance magnetization and remenance ratio all are excellent and are most suitable for biomedical

applications (Magnetic Hyperthermia). The studies related to induction heating are in progress.

Keywords: Cobalt ferrite nanoparticles, XRD, M-H plot, Hyperthermia


ICMM: 426 | An Overview on White Cast Irons and High Chromium White

Cast Irons



Abstract

Crushing and grinding are widely used in mining, mineral processing, cement making, and

coal power generation. The mechanical components that contact with materials being processed are

working under the conditions of high abrasion and impact. How to reduce the wearing damages and

prevent from the cracking failure of the mechanical parts is one of the crucial challenges facing the

operations of many industries, involved crushing and grinding processes. Whit cast irons, and

specifically high chromium white cast irons, have been developed and deployed worldwide for

making mechanical components of crushing and grinding machines due to the combination of high

wear resistance and good mechanical strength. The paper is aimed to give an overview on the white

cast iron alloys, and particularly high chromium white cast iron alloys with 28 references, including

their classifications, their standard specifications in USA, China and Australia, their main usages and

new developments.

Keywords: white cast iron; high chromium white cast irons; high wearing resistant alloys; crushing

and grinding

Reference
















ICMM: 427 | Microstructural Investigation on Heat Treatment of

Hypoeutectic High Chromium White Cast Iron



Abstract

High chromium white cast irons (HCWCI) are widely used as abrasion resistant materials in

cement manufacturing, mineral processing and slurry pumping industries. Their high resistance to

wear in these demanding situations stems from the presence of hard eutectic (Cr,Fe)7C3 carbides in

their microstructures. In this context, the properties of hypoeutectic iron of HCWCI containing 25 wt.

%Cr-2.5 wt. %C were investigated after destabilisation heat treatments, cooling (slow and fast

cooling) to ambient temperatures, their influence on the microstructure was investigated. For

characterization of the hypoeutectic iron of HCWCI, several experimental tests were performed

using the following laboratory equipment: light optical microscope, scanning electron microscope.

The amount of retained austenite also depends on the alloying additions in the melt during melting

processes, destabilisation temperatures, soaking time and the cooling rates during heat treatment

processes.

Keywords: white cast iron; high chromium white cast irons; high wearing resistant alloys; microstructure

Reference (part)
















ICMM:429 | Analysis of Camshaft for Straight Line Six Cylinder’s IC Engine

D. Revathi1, Dr. N. Sujan Rao2, Dr. TVSMR Bhushan3*

1PG Student, Department of Mechanical Engineering, Nalla Malla Reddy Engineering

College, Hyderabad, 500088, India 2Associate professor,Department of Mechanical Engineering, Nalla Malla Reddy

Engineering College, Hyderabad, 500088, India 3Associate professor & HOD,Department of Mechanical Engineering, Nalla Malla Reddy

Engineering College, Hyderabad, 500088, India


Abstract

The camshaft is generally used in IC engine driven by crankshaft via timing gear to operate

poppet values to control the flow of air/fuel mixture for suction and exhaust strokes of cylinders. The

camshaft rotates at very high speed, critical loads causes vibrations in system and it is subjected to

varying fatigue loads due to the contact of the follower on the cam. These critical values are needed

to determine to avoid failures in camshaft. In this paper, six cylinder camshaft is modeled and

analyzed by varying loads with respect to speed and time. The 3Dmodel of camshaft is designed in

CATIAV5R20 modelling software. In this present work, chilled cast-iron and Billet steel are

replaced with different selected materials are Malleable cast-iron, NiCrMo alloy steel, SS316,

EN24T and C55Mn15.The dynamic analysis, Fatigue analysis and Modal analysis is carried out

usingANSYS2019R2 software. Dynamic analysis is done to find the deformations, stresses and

strains. Modal analysis is done to determine natural frequencies at different mode shapes and Fatigue

analysis is done to estimate the life of the component. The simulated results are compared with

theoretically calculated value and it shown good agreement.

Keywords: cylinder’s camshaft; CATIAV5R20; dynamic; fatigue; modal.

Acknowledgements

I would like to thank Nalla Malla Reddy Engineering College, for providing all facilities for this

project and special thanks to Dr. N. Sujan Rao and Dr. TVMSR Bhushan for their value input and

technical support for this project. .

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ICMM:430 | Finite Element Crash Simulation Of an Automobile by using LS-

DYNA

Naikodi Chaitanya1 and M.N.V. Ramesh2*

1PG Student, Department of Mechanical Engineering, Nalla Malla Reddy Engineering College, Hyderabad,

500088,India 2Department of Mechanical Engineering, Nalla Malla Reddy Engineering College, Hyderabad, 500088, India

*Corresponding author: Mobile: (+91) 9849024369; E-mail:[email protected]

Abstract

The objective of the current work is to estimate the maximum displacement and energy

absorption capacity of fascia and body in white structure during crash. The details of the Fascia and

body in white structure are taken from Honda Accord Model. The crash tests are performed on fascia

considering the Dual Phase 600 Steel, TI6AL4V alloy and Acrylonitrile Butadiene Styrene (ABS)

Plastic materials. The fascia crash test is performed as per United States New Car Assessment

Programand and Roof crush test is performed as per federal motor vehicle standards 216.

Deformation and energy absorption capacity during crashing have been analyzed by using finite

element solver LS-DYNA. The results show that, the energy absorption capacity of Dual Phase 600

Steel is greater than that of TI6AL4V alloy and Acrylonitrile Butadiene Styrene (ABS) Plastic during

the fascia crash test. In case of roof crush test, resultant displacement of Dual Phase 600 steel is less

compared to TI6AL4V Alloy. This analysis helps in selection of material which can minimizes the

damage during vehicle accidents.

Keywords: Fascia; FEM; LS-DYNA.


ICMM:432 | X-ray Attenuation Coefficient of Niobium compound Using

Synchrotron Radiation Source in the Energy Range 18.913 to 19.668 keV G. Manjula1*, Bunty Rani Roy1, Ashok Kumar Yadav2, A.S. Nageswara Rao1

1Department of Physics,Kakatiya University,Warangal,506001,India.

2Bhabha Atomic Research Center,Mumbai, 400085,India.


Abstract

X-ray mass attenuation coefficient of Niobium compound is measured in the energy range from

18.317 keV to 19.668 keV around the k-edge using Scanning EXAFS Synchrotron radiation Source.

The observed values are compared with the theoretical predictions XCOM and FFAST. The results

and discrepancies obtained are discussed.

Keywords: Mass attenuation Coefficient; EXAFS; Synchrotron Radiation.


ICMM:501 | Biological Evaluation of An Novel in-Situ Polymerised

Polyaniline Cerium Vanadate Nanocomposite and its Application in

Environmental Remediation

Vinisha Valsaraj P1*, Anet2 1Department of Chemistry, Sree Narayana College, Kannur, Kerala 670007, India

2Department of Physics, Sree Narayana College, Kannur, Kerala 670007, India

**Corresponding author. Mobile: (+91) 9495468840; E-mail: [email protected]

Abstract

In the present work, a novel polyaniline cerium vandate nanocomposite were facilely prepared

by in-situ polymerized sol-gel process. X-ray diffraction (XRD) pattern revealed the crystal planes

and size of the synthesized nanocomposite. The morphological shape and the crystalline nature of the

nanocomposite were examined by field emission scanning electron microscopy (FESEM). Energy

dispersive X-ray spectroscopy (EDX) affirmed the presence of elemental composition and purity of

the fabricated nanocomposite. Fourier transform infrared spectroscopy (FT-IR) confirmed the

conceivable stretching frequency on the surface of nanocomposite. Polyaniline cerium vanadate

nanocomposite was used as a solid phase adsorbent for removing methylene blue (MB) from aqueous

media. Desorption of the dye and recycling potential of the adsorbent was also studied. Besides,

these nanocomposite evinced antimicrobial activity against E.coli and Staphylococcus aureus. The

studies describing the synthesis of polyaniline cerium vandate by simple in-situ polymerised sol-gel

method followed by the investigation of adsorption and antimicrobial activities may be useful for the

research activities to open a new horizon in the field of nanotechnology.

Keywords: Polyaniline; cerium vandate; antimicrobial activity; dye adsorption.

Acknowledgements

The authors acknowledge their thanks to Nirmalagiri College, Koothuparamba, Biogenixresearch

Centre, Thiruvananthapuram and SAIF, Cochin for providing facilities for characterization. They are

also thankful to KSCSTE, Thiruvananthapuram.

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ICMM:503 | Effect of Sm3+ ions on Structural and Thermal Properties of

PVA+PEG Nano Polymer Films

V.Vinay Krishna1, J.Suresh Krishna2, M. Hemalatha2, D. Siva Raju2 and

Ch. Linga Raju2* 1Department of E & IT, Acharya Nagarjuna University, Nagarjuna Nagar-522510, India

2Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar-522510, India


Abstract

A Series of complex blended polymer films of poly (vinyl alcohol) (PVA) and poly (ethylene

glycol) (PEG) with doping of various concentrations of active Sm3+

ions (1-5 mol %) were

synthesized by the mechanism of solution casting technique. From the analysis of X-ray diffraction

(XRD) and FTIR spectra, the structural analysis and molecular level interactions were observed,

which results in reduction of the poly crystalline nature of the blended films. Scanning electron

microscopy (SEM) studies reveals the uniform dispersion and coordinated complexes formation over

the surface. Thermo gravimetric analysis (TGA) and differential scanning calorimetric (DSC)

analysis are used for examination of thermal behaviour of the polymer blends, which shows

enhancement in their thermal degradation and strength. The complex miscible polymer blends

(PVA+PEG) doped with 5.0 mol % of Sm3+

ions are acting as a prominent host material for

designing and development of opto electronic and luminescent devices.

Keywords:Polymer blend; Solution-casting; Poly Crystalline;Coordinated Complexes.


ICMM:504 | Synthesis and Property Analysisof Poly-Acryl-Amide

(PAM)/Poly-Vinyl-Alcohol (PVA) Blend Thin Films

Rashmi S. Adoor1,2*,Sushant A. Haladkar3, Susheelkumar G. Adoor4,

Narasimha H. Ayachit5. 1 Department of Physics, Rani Channamma University, Belagavi, India

2Department of Physics, K.L.S. GogteInstitute ofTechnology, Belagavi, India

3Department of Applied Physics, Defence Institute of Advanced Technology, Girinagar

,

Pune, India 4Department of Chemistry, Govindram Seksaria Science College, Belagavi, India

5KLE Technological University, Hubli, India


Abstract

We present a study of variations in dielectric properties for polymeric blend films of

poly(acrylamide) (PAM)/Poly(vinylalcohol) (PVA). Initially, the PAM and PVA were used to obtain

apolymeric blend solution in distilled water. Preparation of blended films was conducted by adrying

process. Films of pure PAM, pure PVA and blend films (w/w%) were characterizedby X-ray

diffraction (XRD) and scanning electron microscopy (SEM). The characterizations revealed proper

trends for the films depending upon weight percent (PAM:PVA:: 20:80, 40:60, 60:40, 80:20).

Variations in their dielectric property were investigated by use of a LCR (inductor capacitor resistor)

meter.

Keywords:Poly(acryliamide) (PAM); Poly(vinylalcohol) (PVA); thin blend films; dielectric

constant.

Acknowledgements

The authors thank to Department of Physics K.L.S.G.I.T., India, Department of Applied Physics,

Defence Institute of Advanced Technology, India, Department of Chemistry, Govindram Seksaria

Science College, India, Department of Physics, RCU, India.


ICMM:505 | Effect of Phenol Red on the Optical Properties of Biodegradable

Polymer Composite Films

Ismayil1*, Swathi1

1Department of Physics, Manipal Institute of Technology, Manipal Academy of Higher

Education, Manipal, Karnataka - 576104, India


Abstract

Phenol red dye doped Carboxymethyl Cellulose biodegradable polymer films of different

dopant concentrations were prepared by conventional solution casting method. The optical properties

of these films for different Phenol red concentration were investigated using UV-Visible

spectroscopy and the fluorescence spectroscopy and the corresponding microstructure behavior of

the polymer matrix have been studied using SEM and XRD techniques. UV-Visible study shows that

new peaks emerged at around 270nm and 440nm for doped films. Optical absorption increases with

increasing dopant concentration. The variations of optical energy band gap, Urbach energy upon

doping were studied. Optical energy gap of the sample shifted from 5.21eV to 4.21eV upon doping.

The variations of optical dielectric constant and refractive index with wavelength of the doped films

have also been studied. XRD study reveals the fact that there is anincrease in amorphousnessand also

reduction in the inter chain distance within the polymer matrix.Photoluminescence study show that

the fluorescent quenching takes place upon doping due to increase in the free volume size. The

change in the microstructure and hence the modification in the physical properties of the polymer

composite films are correlated.

Keywords:Polymer microstructure; free volume; structure-property relationship.


ICMM:511 | Ferroelectric Polymer Composite as Radio Absorbing Material

(RAM) for 5th Generation Stealth Fighter Aircraft

Ayush Sharma1, Sudheendra. S. Kulkarni2,* and Udaykumar.V. Khadke3 1Department of Electronics and Communication Engineering, KLS Gogte Institute of

Technology, Belagavi, an autonomous institution, Affiliated to Visveswayara

Technological University, Belagavi-590008 Karnataka India. 2Department of Physics, KLS Gogte Institute of Technology, Belagavi, an autonomous

institution, Affiliated to Visveswayara Technological University, Belagavi-590008

Karnataka India. 3Department of Physics, Vijayanagar Sri Krishnadevaraya University, Bellary,

Karnataka, India.


Abstract

In this paper we report the method of synthesis of ferroelectric polymer Polyvinyldene

fluoride (PVDF) and three different types of materials viz: Barium Titanate (BaTiO3) Titanium

dioxide [PT] and Zinc oxide [PZ] in PVDF matrix as self-supporting thin films and its dielectric

response. These ferroelectric polymer composites each with five different concentrations were

synthesized by solution mixing method using Dimethylformadide (DMF) as a solvent. The XRD

pattern confirms the formation of tetragonal pervoskite structure of ferroelectric phase and shows

proper mixing of particles intestinally and found to be improving its crystallinity with increase of

composition in the PVDF matrix. The dielectric properties of the composites as a function of

frequency were measured using impedance analyser. The dielectric constant decreases with increase

of frequency shows the Maxwell – Wagner type of interfacial polarization in accordance with Koop’s

phenomenological theory. Further experimental on Military Radio Absorbing property for

ferroelectric polymer composites using academic Microwave waveguide setup in both X band & S

band were studied. Thin films were inserted between Transmitter and Microwave detector for initial

power of 40 dB for and 26.9 dB for X band and S band respectively. Ferroelectric polymer

composite PT have shown good Radio Absorption compare to PZ composites. Moreover PB shows

an absorption of 20% of the incident Microwave which is desirable and can be used for the 5th

generation stealth fighter Aircrafts and other Military stealth application, while the other polymers

are Microwave transparent in both X band and S band and can be used ‘Radome’ material for the

nose of the Fighter aircraft.

Keywords: PVDF:Polyvinyldene fluoride; PB: PVDF- BaTiO3; PZ= PVDF- ZnO; PT= PVDF- TiO2


ICMM:514 | Effect of Copper Oxide nanofillers on PVA/PVP Blend

Rajesh K1, Vincent Crasta1** , Rithin Kumar N B2, Gananatha Shetty B1

1 St Joseph Engineering College Mangaluru, 575028, Karnataka, India

2A J Institute of Engineering and Technology, Mangaluru, 575 006, Karnataka, India

**Mobile: +91 9448253901; E-mail:[email protected]

Abstract

Polyvinyl alcohol (PVA)/Polyvinylpyrrolidone (PVP) (50/50) blends filled with various

concentrations of Copper Oxide (CuO) nanofiller (0, 2 and 4wt %) have been prepared using

ultasonicator. The XRD Studies reveals the structural confirmation of the nanocomposite films. It

also indicates the increase in crystallinity of the blend upon addition of nanofillers. The crystallite

size of the pure film is 2nm and that of the nanocomposite films is 33 nm.The direct energy gap

values found by transforming UV visible spectra into Tauc’s plots indicates the declining energy gap

of the nanocomposite films with an increase in CuO nanofiller concentration.The surface

morphology studies carried out using atomic force microscope (AFM) indicates an increase in

surface roughness of the films upon addition of CuO nanofillers in the blend.The photoluminescence

spectra measured at an excitation wavelength of 220nm reveals that the intensity of the spectra

increases with filler concentration. The mechanical properties studied using Universal testing

machine (UTM) indicates an increase in Young’s modulus of the films with an increase in CuO

nanofiller. There is a significant enhancement in the optical and mechanical properties of the blend

upon the addition of CuO nanofillers. These improvements in the properties of the blend with the

addition of CuO nanofillers make it a potential material for device applications.

Keywords: PVA/PVP blend; nanofiller; optical properties; mechanical properties

Acknowledgements

We thank Dr. Sangappa Y, Professor, Department of Physics, Mangalore University for extending

UTM facility.


ICMM:515 | Synthesis and Characterization of Donor-Acceptor-Donor Type

Polymer for NLO Applications

*K. Balakrishnaa, R. Sampatha, T. Vishwama, M. P. Joshib, S. Raj Mohanb aDepartment of Chemistry and Physics, GITAM (Deemed to be University),

Hyderabad- 502329, India b Laser Materials Processing Division, Raja Ramanna Centre for Advanced Technology,

Indore-452013, India

Abstract

In material science for different applications purpose research and development wise various

materials tried starting from small to big molecules which includes inorganic as well as organic

polymers. Especially some of the thrusting areas like non-linear optics (NLO), light emitting diode

(LED), liquid crystal display (LCD), field effect transistors (FET) and solar cell are still under

demand for various applications like optical communication, optical data storage, energy harvesting

etc.To fulfil the demand various novel polymeric materials based on polyamide, poly(methyl

methacrylate), polyimide and polyurethane etc have been synthesized in especially for NLO and

LCD applications. For NLO and LC materials, having donor and accepter containing moietieswhich

are attached through conjugation to some extent plays important role to achieve the desirable

properties. In the present paper we have synthesized donor-acceptor-donor based NLO polymer

containing carbazoles by using Knoevenagel condensation reaction. The polymer is found to be fully

soluble in high polar solvents like dimethyl formamide and dimethylsulphoxide. By using GPC and

tetrahydrofuran as a solvent, the molecular weight is found to be 5000 g/mol. Thermal analysis

exhibited thermal stability of the polymer up to 400oC and glass transition temperature (Tg) at 214

oC.

The non-centrosymmetry in the film was induced by corona poling for second order NLO property

Computational study indicated that the total charge is located at the centre of the molecule in HUMO

case whereas in the case of LUMO the charge is spreads out from the centre of the molecule.

Keywords:Nonlinear optics,Carbazole, Thermal analysis, Poling,Computational study.


ICMM:518 | Advancement in Structural, Morphological and Dielectric

Studies of PVA filled TiO2 and ZnO nanocomposites

Vincent Crasta1*, B Gananatha Shetty1, Rajesh K1, 1Department of Physics, St Joseph Engineering College, Mangaluru, Karnataka-575028, India


Abstract

In this article, we report advancement in structural, morphological and dielectric studies of

PVA encapsulated titanium dioxide (TiO2) and zinc oxide (ZnO) nanoparticles.PVA/(x)TiO2(15-

x)ZnO nanocomposites were prepared using solvent casting ex-situ technique for x = 0wt%, 1wt%,

5wt%, 7.5wt%, 10wt%, 14wt% and 15wt% filling concentrations. FTIR spectroscopy reveals the

formulation of complexes between the PVA main chain and nanofillers and is due to inter or intra

molecular hydrogen bonding. The AFM picture shows the uniform grain structure for pure PVA and

changes in surface morphology for prepared PVA nanocomposites. The morphological and

homogeneous distribution of nanofillers in PVA nanocomposites was observed using SEM. AC

conductivity studies of the films spectacles the variation of conductivity for different filling

concentrations with increase in frequency. The frequency dependent dielectric constantdecreases

with an increase in frequency.

Keywords:PVAnanocomposites; nanofillers;ac conductivity; dielectric studies



ICMM:519 | Effect of Microcrystalline Cellulose Reinforcement in DOP

Plasticized Melt-spun PHB Fibers

Moumita Mistri1, 2*, Pavan Manvi3, Bernd Michael Liebeck4 Thomas

Gries3, and Bhanu Bhusan Khatua2 1Materials Science Programme, Indian Institute of Technology Kanpur, Kanpur, 208016,

India 2Materials Science Centre, Indian Institute of Technology Kharagpur, Kharagpur,

721302, India 3Institut für Textiltechnik der RWTH Aachen, Aachen, 52074, Germany

4Institut für Kristallographie der RWTH Aachen, Aachen, 52066, Germany


Abstract

Poly[3-hydroxybutyrate] (PHB) having properties similar to conventional thermoplasticsand

microbial biodegradability under both aerobic and anaerobic conditions, however,finds difficulty in

large scale processability owing to poor mechanical performance. Melt-spun PHB fibers plasticized

with 5 wt% dioctyl phthalate (DOP) are reinforced with microcrystalline cellulose (MCC) by using a

twin-screw extruder to aid high crystallinity.DOP/MCC reinforced fibers have resulted in diminished

stickiness in physical appearance compared to that of neat PHB fiber, and uniform distribution of

additives, as revealed by cross-sectional and longitudinal SEM micrographs. Marginal changes in

Tonset (<1) and % residue at 600 C in TGA curves indicate no significant thermal stabilization with

only 5wt% DOP addition. Shift in the crystallization enthalpy (Hc) in DSC from 48.08 Jg-1

to 50.42

Jg-1

upon 5wt% DOP addition suggest less crystallization probability of the amorphous phase during

cooling. Furthermore, 5wt% MCC marginally alter the crystallization half-life time (t0.5) compared to

PHB-5wt%DOP, suggesting that MCC does not promote the crystallization, hence failed to serve as

a good nucleating agent for PHB. Almost no shift in PHB C=O stretching frequency(1719 cm-1

) in

ATR-FTIR spectra with/without DOP/MCC reinforcement is accounted. The 2D intensity difference

in WAXD ring pattern along the azimuthal direction of reinforced fibres with MCC characteristic

peaks 2θ (MoKα1, 2) = 7.2° and 10.4° overlapping with PHB (020) and (110) peaks at 2θ (MoKα1,

2) = 6° and 7.5° respectively; proposes its poor alignment during spinning and hence unchanged

%crystallinity. In conclusion, achieving a decreased and convenient processing temperature regime

for PHB fiber by incorporating only 5wt% DOP and MCC using melt-spinning have not led to

desired mechanical performance; perhaps feasible at higher % loading.

Keywords:Poly[3-hydroxybutyrate] (PHB), Dioctyl phthalate (DOP), Microcrystalline cellulose

(MCC), Melt-spinning, Thermal study.


ICMM:520 | Annealing Effect on Magneto-Transport Property and Stress

Induced Dynamic Elastic Moduli on a Co-Ni-Al FSMA

B. Rajini Kanth1,2*, Md Sarowar Hossain2, and P. K. Mukhopadhyay2 1LSMS, T. K. R. College Engineering and Technology, Hyderabad 500097, India

2LCMP, S. N. Bose National Centre for Basic Sciences, JD Block, Salt Lake 700 098, India


Abstract

Ferromagnetic Shapememory Alloys offers prospects for novel applications that make use of

new mechanism for converting between magnetic and mechanical energies,due to the unique

combination of large displacements and fast mechanical response. Structural transformation varies

between Austenite and Martensitic phase. These structural transformation temperatures are sensitive

to the preparation parameters and conditions. We have prepared a sample of Co-Ni-Al alloy system

(Co40Ni33Al27) by arc melting and annealed at 1373K/24h and 1473K/72h. The sample was

characterized by XRD, resistivity, & magnetization. Interestingly annealing temperature and stress

affects on magneto transport and elastic properties respectively1. TM has increased due to annealing.

Austenite to Martensite phase transformation shifts to above room temperature for annealing at

1473K/72h and hence we can largely control the shape memory effect of this alloy by annealing2.

Room temperature resistivities are increased by a factor of 3 due to higher temperature annealing

prolonged annealing brought in more disorder in the system and affected the electronic transport

properties. The elastic behavior of the sample annealed at 1373K/24h, in presence of stress of 7.42

MPa the transition temperature is lower than the temperatures found in magnetization and resistivity

measurement.

Keywords:Sound velocity 1; Internal Friction 2; Ferromagnetic Shape Memory Alloy 3.

Acknowledgements

BRK acknowledges the support extended by DST videproject grant no. SR/FTP/PS-108/2009

and the Directors of S. N. Bose Center and T.K.R. College of Engineering and Technology for

allowing the collaboration work. Dr. S. Pandianand J. Arout Chelvane are acknowledged for the help

extended in making the samples, SH thanks TWAS – Bose fellowship.


ICMM:521 | Rheological Studies on Homogeneous and Inhomogeneous Core

Dense Colloidal PNIPAM Microgels

M.V. Saisavadas1, R.G. Joshi2, M. Praveen Kumar1, Surajit Dhara1,

B.V.R.Tata1* 1School of Physics, University of Hyderabad, Hyderabad, 500 046, India

2Condensed Matter Physics Division, Materials Science Group, Indira Gandhi Centre

for Atomic Research, Kalpakkam , 603 102, India

*B.V.R.Tata. Mobile: (+91) 9444463933; E-mail:[email protected]

Abstract

Aqueous suspensions of thermo responsive poly (N-isopropyl acrylamide) (PNIPAM)

microgel particles exhibit volume phase transition (VPT) around 34oC. PNIPAM microgel spheres

are known to have a dense core with in a fuzzy shell of dangling polymer chains. Recently (Joshi and

TataColloid Polym.Sci. 295, 1679 (2017)) it was shown that under dense conditions i.e. volume

fraction,> 0.64 PNIPAM microgel suspensions exhibit glassy state and undergo two step yielding

(two peaksin viscous modulus G”(ω))upon application of shear. Two-step yielding reflecting the

breaking of entanglements of dangling polymer chains between shells of microgels and breaking of

the near neighbour cages respectively. Two-step yielding in dense microgels is unusual. Motivated

by these studies and with an aim to understand better the role of entanglements on the yielding

behaviour in the glassy state, we synthesized homogenous core (referred to as HC-PNIPAM

microgels)by feeding the monomer solution into the reaction mixture in a regulated way during the

polymerizationand core-shell type (referred to as CS-PNIPAM microgels)by conventional

polymerization method. Here we report the results obtained from non-linear rheology on dense

suspensions of HC and CS type PNIPAM microgel spheres. At temperature slightly below the room

temperature the dense PNIPAM microgels are found to be in glassy state .We observed two step

yielding in dense CS PNIPAM microgels suspension in their glassy state. Whereas dense suspension

of HC-PNIPAM spheres showed single step yielding.These observations clearly suggest that the

entanglement between the shells of the neighbouring CS-PNIPAM microgel particles are responsible

for two step-yielding in colloidal microgel glass.We identify the glass transition temperature in our

samples from rheology. Non-linear rheological measurements carried out as a function of

temperature in the glassy state are being analysed.

Keywords:Poly(N-isopropylacrylamide); Thermo-Responsive; Microgels, Non-linear rheology;

Volume Phase Transition.

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ICMM:522 | Studies on Electrospraying Synthesis and mechanism of sol-gel

Derived TiO2-ZrO2-Poly vinylpyrrolidone Composites as Bactericidal Self-

cleaning Coatings

Sanu Mathew Simon1, Prakashan V P1, Gejo George1,2, Anoop Chandran3,

Sajna M S1,4, Saritha A C1, Biju P R1, Cyriac Joseph1, Unnikrishnan N V1* 1School of Pure & Applied Physics, Mahatma Gandhi University, Kottayam - 686 560,

India 2Division of Materials Science, Department of Engineering Sciences and Mathematics,

Luleå University of Technology, SE-971 87, Luleå, Sweden 3Department of Physics, St. Cyril’s College, Adoor

4Department of Optoelectronics, University of Kerala, Thiruvananthapuram-695 581, India

*Unnikrishnan N V (+91) 9745047850; E-mail: [email protected]

Abstract

The blending of inorganic nanomaterials possessing high surface area with polymer systems

to form hybrid materials isa promising category with abundant budding applications due to

itsexceptional mechanical, thermal and chemical stability. Herein, TiO2-Poly vinylpyrrolidone and

TiO2-ZrO2-Poly vinylpyrrolidone composites synthesized using sol-gel method and are allowed for

electrosprayingtechnique on aluminum foil and glass plates to get uniform film. FTIR spectroscopy

and ElementalMapping together confirm the constituents of the composite. FESEM and AFM

revealed smoothness nature ofthe film. Contact angle measurements were carried out to assess self

cleaning natureof the film. Antibacterial activity and oleophobic nature of the surface were

alsostudied. The addition of ZrO2 prevents electron-hole recombination and enhancesphotocatalytic

nature of the film. These works conclude that synthesized TiO2-ZrO2-PVP composite film shows

excellent photoinduced self cleaning nature with betterantibacterial activity.

Keywords:Self cleaning; Antibacterial; Electrospraying

Acknowledgements

The present work was supported by DST-PURSE PII (SR. 417 & SR. 416 dated 27-2-2017).

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ICMM:529 | Finite Element Analysis on Fly Wheel Cup Manufactured with

Polymer Matrix Composite (PMC) Reinforced with Fly Ash

*J Nithin Kumar, K. Praveen Kumar, G Ravi Shankar, P Chucharita Department of Mechanical Engineering, Geethanjali College of Engineering & Technology,

Cheeryal (V), Keesara (M), Medchal Dist. 501301, Telangana, INDIA.


Abstract

In this paper, a polymer matrix composite (PMC) which is widely used in Aerospace,

automobile and other engineering applications, which is reinforced with fly ash is taken in different

weight ratios for manufacturing of Fly wheel cup.

The principle target of this paper is to determine the behavior of fly wheel cup which is

manufactured by deep drawing process using polymer matrix composite (PMC). In order to find the

behavior of finite element analysis technique is used to find the deformation and von-mises stress.

Deformation of Fly Wheel Cup was found in the range of 0.0017 m – 0.008 m, and the level of

equivalent elastic strain was found in the range 0.0087 – 0.04. And compared the results with Mild

Steel, which is presently in use.

Keywords: Fly Wheel Cup, PMC, Fly Ash, FEA.

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ICMM:531 | NiO/Polyaniline Nanocomposite in View of Energy Storage and

Electrochemical H2O2 Sensing Application

Saraswathi Kailasa1, M. Sai Bhargava Reddy B. Geeta Rani1, Shubham

Sharma2, K. Venkateswara Rao*1

1CNST, IST, JNTU, Hyderabad, Telangana State, 500085, India

2CSIR-CLRI, Regional Centre for Extension and Development, India

*Corresponding author. Mobile: (+91) 9440858664 E-mail: [email protected]

Abstract

Now a days metal oxide-polymer nanocomposites attracting as a hybrid electrode for

electrochemical sensor and energy storage (supercapacitors and battery) application. This paper

reports the simple in-situ polymerization of NiO/Polyaniline nanocomposite for supercapacitor and

H2O2 sensing application. Polyaniline is one of the most studies conductive polymer in energy and

sensor applications. The as synthesised NiO/Polyaniline composite was confirmed by XRD,

functional groups were performed by FTIR and morphological were studied by FESEM and TEM.

The obtained NiO/Polyaniline was coated on nickel foam and used as modified electrode, was

studied by cyclic voltammetry, amperometry, galavanostatic charge and discharge, FRA to find out

its potential for H2O2 sensing and energy storage. It was found that the fabricated hybrid

NiO/Polyaniline electrode showed better performance

Keywords:in-situ polymerization; H2O2 sensing; Cyclic Voltammetry; nickel foam; FESEM


ICMM:538 | Laser Applications for the Optical Exploration of the Dy3+ Doped

Li2O-CaF2-Al2O3- B2O3- SiO2 Glasses

D. Deenabandhu1,K. Neeraja2, K. Ephraim Babu2*, , V. Venkata Kumar3, K. Bueala

Kumari3, K. Samatha4 and V. Veeraiah4

1Department of Physics Dr. L. B College of Engineering for Women Visakhapatnam. A.P.

2Department of Physics, Narasaraopeta Engineering College (A) ,Narasarao pet,Yellamanda (P.O)

Guntur(D.T) Andhra Pradesh, 522601, India. 3Department of BS&H, St. Ann’s College of Engineering & Technology, Nayunipalli village, ChallaReddy

Palem Post, Vetapalem Mandal, Chirala, Prakasam District, AP - 523187, India 4Department of Physics, Andhra University,Visakhapatnam, Andhra Pradesh, 530003, India.


Abstract

This paper provides details regarding the preparation, optical absorption, emission and FTIR

spectral studies on Dy3+

doped Li2O-CaF2-Al2O3- B2O3- SiO2 glasses. Absorption spectrum reveals

different bands and it analyzed by the use of JO-theory. Emission spectra of the samples display two

transitions 4F9/2→

6H15/2,

4F9/2→

6H13/2, a clear enhancement is observed with increase the

concentration of Dy2O3 ions. The CIE coordinates is measured for these glasses it demonstrates that

the glasses produce bright white light, which are appropriate for the improvement of the laser

materials and white light LED's.

Keywords:Optical absorption, emission, JO-theory, FTIR


ICMM:539 | Iso-conversional Kinetics Study of Xanthan Gum Bio Polymer

A.M.Shaker11, T.Lilly Shanker Rao2**, T.Shanker Rao3, K.Venkataraman4 1Physics Department, K.J.Somaiya College of Science &Commerce,Vidyavihar, Mumbai, 400077,India.

2Electronics Department, Narmada College of Science&Commerce, Bharuch,392011,India.

3Physics Department, Narmada College of Science and Commerce,

Bharuch,392011,India 4Physics Department, PMB Gujarati College,Indore ,452001,India

**+91 9427931353; [email protected]

Abstract

The Crystallization process of Xanthan Gum Bio Polymer is studied by Differential Scanning

Calorimetry (DSC) at different heating rates (2,4,6,8 and 10 K/min) under non isothermal

conditions. Four iso-conversional (Flynn-Wall-Ozawa, Tang, Straink ,Kissinger-Akahira-Sunose and

Ortega)approaches are utilized to determine the activation energy of crystallization (Ec) and Avrami

exponent (nα ) . The transformation of amorphous phase to crystalline form is discussed.

Keywords:Non-isothermal method;Iso-conversional; Crystallization kinetics; Biopolymer;

Activation energy.

Acknowledgements We thank Central Salt and Marine Chemical Research Institute (CSMCRI), Bhavnagar,

Gujarat 364002, India for helping DSC experimental work.


ICMM:545 | Studies on Mass Attenuation Coefficient, Effective Atomic

Number and Electron Density of Some Biomolecules in the Energy Range

0.122 To 1.330 Mev

Khan Faizan*, Shaikh Junaid, Farha Naaz, Aqsa Samreen, Shaikh Saima Anam,

Shaikh Zeba Anjum, Pravina P.Pawar.

Dr. Babasaheb Ambedkar Marathwada University, Aurangabad.


Abstract

The Mass Attenuation co-efficient (/r) of certain biomolecules precisely carbohydrates

formed by C, H and O are studied. It is calculated by using gamma ray photons varying in the energy

range 122-1330 KeV. Further some derived values such as linear attenuation coefficient (m),

effective atomic number (Zeff), effective electron density (Neff), total cross sectional area (total),

mean free path(X), Molar extinction co-efficient (). The specimens studied are Stachyose

(C24H42O21), Sedoheptose (C7H14O7), Threose (C4H8O4), Glyceraldehyde (C3H6O3), Adonitol

(C5H12O5), Formaldehyde (C1H2O1). The results so obtained are represented graphically.

Keywords:Mass attenuation coefficient (r), effective atomic number (Zeff), effective electron

density (Neff), total cross sectional area (total), mean free path(X), Molar extinction co-efficient().

Acknowledgements:

The authors extend their sincere thanks to UGC-SAP Programme (F.530/16/DRS-I/2016 (SAP-2) Dt.

16-04-2016) and DST-FIST (Project NO. SR/FST/PSI-210/2016 (C) dtd.16/12/2016) for providing

financial support.


ICMM:603 | ТiО2/Activated Carbon Composites: Synthesis, Structure and

Adsorption Properties

Anzhela Kukh*, Iryna Ivanenko Department of Inorganic Substances Technology, Water Treatment and General Chemical

Engineering

National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute",

4 building, 37 Pеremohy ave., 03056, Kyiv, Ukraine


Abstract

Adsorption is an integral stage of any heterogeneous catalytic process. The efficiency of it

relies on the high adsorption activity and the necessary structural and adsorption characteristics of

catalysts [1,2]. This goal has been achieved in the present work by immobilization of titanium oxide

on the surface of activated carbon. A series of composites of TiO2/activated carbon has been

synthesized by a modified sol-gel method. This series included five composites. The four composites

were obtained by low temperature hydrolysis, three of which were doped with fluorine in various

ratios [3]. The fifth composite was synthesized by direct precipitation [4]. The surface morphology of

composites and the size of immobilized particles of TiO2 were studied by SEM. The phase

composition was established by XRD. The low-temperature adsorption-desorption of nitrogen were

investigated to calculate the main structural-adsorption characteristics. The adsorption activity of the

composites has been studied toward glucose, phenol, cationic and anionic dyes. A significant

increase of the adsorption capacity of all synthesized composites compared to the initial activated

carbon has been found, despite its inner surface and porosity decreases due to modification. The

observed increase of the adsorption activity is due to the fact; that adsorption on TiO2/activated

carbon composites is accompanied by the simultaneous catalytic decomposition of adsorbed

substances at the surface active centers, which are TiO2 particles.

Keywords: adsorption, activated carbon, titanium (IV) oxide, composite

Reference 1. L. Wang, X. Wang, J. Cheng, P. Ning, Y. Lin, Appl. Surf. Scie., 439, 213-221, 2018.

2. E. Pakdel, W.A. Daoud, S. Seyedin, J. Wang, J.M. Razal, L. Sun, X. Wang, Coll. Surf. A:

Physicochem. Engin. Asp., 552, 130-141, 2018.

3. I.N. Ivanenko, T.A. Dontsova, I.M. Astrelin, V.V. Trots, J. Water Chem. Technol., 37(1), 14-20,

2016.

4. T. Dontsova, I. Ivanenko, I. Astrelin, Nanoplasmonics, nano-optics, nanocomposites, and

surface studies: Springer Proceedings in Physics, 167, 275-293, 2015.


ICMM:608 | Room Temperature Ammonia Gas Sensing Properties of Nickel

Oxide Thin Films

K. GangaReddy*, M.V.Ramana Reddy

Thin films and Nanomaterials Research Laboratory, Department of Physics, Osmania

University, Hyderabad, 500007, India


Abstract

In this work, nickel oxide thin films were successfully deposited with simple and low-cost

sol-gel spin coating method. The prepared samples were annealed at 250⁰C and structural and optical

properties were studied using XRD, SEM, EDAX and UV-visible spectrophotometer. XRD pattern

revealed that all the prepared samples are in cubic structure and well-matched with JCPDS. From

SEM,It is observed that all the films are uniform and highly adhesive. Transmittance spectra is

indicating the prepared samples are highly transparent, and the energy band gap was calculated from

absorption spectra. These prepared samples were tested using static gas sensing set up to detect

different reducing analyte gases including ammonia towards various ppm at room temperature.

Ammonia was found to be good selective and sensitive, and response and recovery time of the sensor

were calculated and reported.

Keywords: thin film; ammonia gas sensor; response; selectivity; sensitivity

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ICMM:616 | Structural Characterization of Layered Tin Mono-selenide

Crystals Doped with Copper Grown by DVT Technique

S. M. Bharthaniya1, K. R. Chaudhari2, Ajay M. Agarwal3*,G. K. Solanki4 1Dept. of Physics, M. R. Arts & Science College, Veer Narmad South Gujarat University,

RAJPIPLA, 393145, India 2Dept. of Electronics,

3*Dept.of Physics, Shree Jayendrapuri Arts & Science College, Veer

Narmad South Gujarat University, BHARUCH, 392001, India 4Dept.of Physics, Sardar Patel University, VALLABH VIDYANAGAR, 388120, India

*Corresponding author. Mobile: (+91) 9638185127; E-mail:[email protected],[email protected]

Abstract

In the last two decades there has been a lot of interest in the development of alternative renewable

energy sources [1]. Particularly thermoelectric materials have witnessed a renewed interest since

thermoelectric effect can be used to convert thermal energy into electrical energy; they provide an alternative

for power generation from waste heat and also can be used for refrigeration. The efficiency of thermoelectric

materials is given by the dimensionless figure of merit (ZT) defined as T

SZT

2 Where S,,& T are the

Seebeck coefficient, electrical conductivity, thermal conductivity and absolute temperature respectively.

Therefore excellent thermoelectric performance require a high power factor as well as low thermal

conductivity.

Since the initial observation of high thermoelectric performance in SnSe in 2014 in the temperature

range 723-923 K[2], there have been a large number of research papers on SnSe samples[3]. Favourable

thermoelectric properties in SnSe are not limited to higher temperature phase but can also be obtained in low

temperature phase by suitable doping. Now doping in SnSe can be done either at cation site or anion site.

Singh et al[4] tried Al, Cu, Pb and In as dopants at Sn site and synthesized Sn(1-x)MxSe in the polycrystalline

form. Their study showed that Cu doped SnSe alloys resulted in enhancement of ZT and could work as a

potential and cost effective TE material. Since it has been seen that SnSe in single crystal form gives a better

thermoelectric performance[5], it was thought worthwhile to grow Cu doped SnSe in single crystalline form.

The SnSe crystals doped with copper were grown by DVT-Direct Vapour Transport technique having no

transporting agent. The present paper describes a complete structural characterization of the as grown samples.

For structural analysis, X-ray diffraction data of pure and Cu doped SnSe samples have been recorded using

Phillips Xpert MPD, Holland in the 2 range of 25 to 63 with scanning speed of 3 per minute employing

CuK radiation with =1.5405 A. All the X-ray peaks have been indexed and it is seen that the grown

crystals possess an orthorhombic crystallographic phase. The lattice parameters have been calculated using the

relation 2

2

2

2

2

2

2

1

c

l

b

k

a

h

d

The calculated values match with the values reported in the literature. The unit cell

volume has been evaluated using V = abc. Parameters such as crystallite size D, lattice strain and dislocation

density have been determined with the following formula

2cos

kt

,

tan4

2 and t

15

Where β2 is the

integral half width, k is a constant equal to 0.90, is wavelength of incident X-rays(0.1540 nm), is Bragg

angle.

The elemental analysis for chemical stoichemetry has been done with the help of EDAX spectra. The

spectra clearly show the presence of all the elements in nearly stoichiometric proportion. The X-ray diffraction

analysis is directly supported by electron diffraction patterns taken from the as grown samples. Scanning

Electron Microscopy has been used to study the growth mechanism which is responsible for the growth of

grown samples of SnSe and SnSeCu. The implications of all the results have been thoroughly discussed.

Keywords: Structural Characterization; DVT; EDAX; XRD; SEM.

Acknowledgements Authors are hearty grateful to Head, Dept. of physics, Sardar Patel University, V.V. Nagar for providing the

necessary research facilities.



ICMM:620 | The Effct of Polygonal Pin Profiles on Temperature Profile of

Friction Stir Welded Thick Dissimiar Materials

M.Mounika1, R.Venkateswara Rao2* Y. Anuradha2, Dr. G. Amarender Rao3 1P G student, VBIT, Hyderabad, 501301, INDIA

2Asst Prof, VBIT, Hyderabad, 501301, INDIA

3Prof & Principal, VBIT, Hyderabad, 501301, INDIA


Abstract

In friction stir welding (FSW), the temperature distribution between weld surfaces depends

upon the geometry of pin profile. The main aim of this study is to experimentally investigate the

temperature distribution between AA2014/AA6061 Al-alloys weldments fabricated with polygonal

pin profiles. The process parameters such as tool rotational speed (710,900 and 1120 rpm), feed rate

(20.315 and 40 mm/min) and polygonal pin profiles (T, S and P) were considered and they are

ordered as per L9 orthogonal array. The temperature measurement during the process was carried

with an infrared thermometer instead of thermocouples in order to measure the accurate temperature

generated in nugget zone. Experimentally it was observed that the temperature on advancing side is

higher as compared to retreating side which observed between 200-2500 C.

Keywords: friction stir welding; temperature profile; polygonal pin profiles; dissimilar materials.

Acknowledgements

The author is grateful to the University Grants Commission, Delhi for the financial support through a

R&D project (MRP-7019/16(SERO/UGC)). The author wishes to acknowledge the help rendered by

Dr. Gopa Dutta, Director R&D and Management of Vignana Bharathi Institute of Technology,

Ghatkesar, Hyderabad to carry out this work.

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ICMM:624 | Simple, Rapid and Solvent Free Synthesis of β – Nitrostyrenes

from α, β-Unsaturated Carboxylic Acids In Presence of Poly Ethylene Glycol

Supported Metal Nitrates

K. Ramesh1 1Assistant Professor, Department of Chemistry, Chaitanya Bharathi Institute of Technology (A),

Gandipet, Hyderabad-500075, India


Abstract

During the past two to three decades, there has been green revolution in the field of chemical

research all over the world to prevent environmental pollution and the use of nonvolatile solvents,

which are essential ingredients in a large number of organic synthesis protocols. More specifically

removal of organic solvents in chemical synthesis is important in the drive towards benign chemical

technologies. Encouraged by these results, Polyethylene glycols (PEGs) have been applied here as

efficient additives in these reactions under solvent free conditions. Poly ethylene glycol (PEG)

supported Hunsdiecker–Borodin reactions were conducted with certain α, β-unsaturated acids in the

presence of metal nitrates such as ferric nitrate and manganese nitrate under solvent free (solid state)

and mineral acid free conditions. The reactants were ground in a mortar with a pestle for about 30

minutes. The aromatic acids underwent nitro decarboxylation and afforded β-nitro styrene derivatives

in very good yield while α, β-unsaturated aliphatic carboxylic acids gave corresponding nitro

derivatives. Addition of PEG accelerated rate of the reaction enormously. Reaction times

substantially decreased from several hours to few minutes followed by highly significant increase in

the product yield. Among the several PEGs used in this protocol, PEG-400 has been found to be

more effective than other PEGs.

Keywords: Metal Nitrate, Poly ethylene glycols, Hunsdiecker –Borodin reaction, α, β-unsaturated

carboxylic acids.



ICMM:627 | Study of Transport and Magnetoelectric Properties of BiFeO3

Thin Films

Pratheek1, B G Hegde1* and N H Ayachit2

1Department of Physics, Rani Channamma University, Belagavi – 591 156, Karnataka,

India 2Centre for Material Science, KLE Technological University, Hubballi – 580 031

Karnataka, India


Abstract

Materials that have coupled electric, magnetic, and structural order parameters that result in

simultaneous ferroelectricity, ferromagnetism, and ferroelasticity are known as multiferroics (1, 2).

In recent times, due to their potential applications in information storage, spintronics and sensors,

these materials gained considerable attention of scientific community. In multiferroic materials due

to strong magnetoelectric coupling both the magnetization and the polarization can be manipulated

by electric as well as magnetic fields. Compared to other multiferroic materials bismuth ferrite,

BiFeO3, exhibits both ferroelectricity and antiferromagnetism at room temperature [3], enabling the

construction of new multifunctional devices. It has a rhombohedrally distorted perovskite structure of

space group R3c with high Neel Tn = 643 K and ferroelectric ordering Tc = 1103 K temperatures [4].

As there are evidence that the multiferroic property of BiFeO3enhances in thin films, an attempt is

made to study its property in thin film form.

BiFeO3 in powder form was prepared by combustion method using precursors Bismuth

nitrate (Bi(NO3)3, 5H2O), ferric nitrate (Fe(NO3)3, 9H2O) diluted nitric acid HNO3, glycine C2H5NO2

and urea CH4N2O [5]. The powder obtained was characterised by XRD. Thin films were prepared by

RF- C sputtering method and its transport and magnetoelectric properties are studied.

Keywords:Multiferroic Thin films, magnetoelectric properties BiFeO3, RF DC sputtering.

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ICMM:631 | Effect of V2O5 on the Properties of Lithium Bismuth Borate

Glasses

V. D. Raut1, A.V. Deshpande2 *, N. S. Satpute3* 1G.H.Raisoni College of Engineering,Nagpur 440016(India)

2Visvesvaraya National Institute of Technology, Nagpur, 440010(India)

3Dharampeth M. P. Deo Memorial Science College, Nagpur 440033(India)

*V. D. Raut. Mobile: (+91) 9423684604; E-mail: [email protected]

Abstract

The series of the glasses with general formula(40-x)Li2O:30B2O3:30Bi2O3:xV2O5,with x = 0,

0.5, 1.0, 1.5 and 2.0 mol% was prepared using conventional quenching technique. The glass

transition temperature Tg for these samples were determined from Differential Thermal Analysis.

The glass transition temperature increases beyond 0.5 mol%. It was found that the glasses under

study consist of randomly connected BO3& BO4 structural units. The density and molar volume of

glasses were found to depend on V2O5 content.Initially the density increases, molar volume and glass

transition temperature decrease with the addition of V2O5. This suggests that when V2O5 is added to

the glass initially up to 0.5 mol% it may be entering as a modifier. Beyond 0.5 mol% density

decreases and molar volume increases as V2O5 goes as former. This reveals the role of V2O5 as a

glass network former beyond 0.5 mol%. Optical band gap energy decreases and cut off wavelength

increases with increase in V2O5 content.

Keywords:Molar volume; Glass transition temperature; Oxygen packing density, Cut-off wavelength,

Optical band gap.

Acknowledgements

One of the authors wishes to express sincere thanks to Dr. V. K. Deshpande for providing research

facilities at V. N. I. T., Nagpur.

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ICMM:633 | Utilization of Spray Coated Nano-crystalline Cadmium Sulfide

Thin Film for Photo-Detector Application

Devidas I. Halge1, Pooja M. Khanzode1, Vijaykiran N. Narwade1, Sumayya

Begum1, Shivaji G. Munde1,2, Kiran D. More1, Janez Kovac3, Jagdish W. Dadge4,

Abhimanyu S. Rana5 and Kashinath A. Bogle1,* 1Thin Films and Devices Laboratory, School of Physical Sciences, Swami

RamanandTeerthMarathwada University, Nanded – 431606 INDIA 2Late ShankarraoGutte Arts, Commerce, Science Gramin College, Dharmapuri, Taluka Parali, District

Beed—431515 INDIA 3Department of Surface Engineering and Optoelectronics (F4),Jozef Stefan Institute, Ljubljana, SLOVENIA

4Department of Physics, College of Engineering, Pune-411005 INDIA




Abstract

In this work, we report fabrication of high quality visible light photo-detector based on

uniform nano-crystalline cadmium sulfide (CdS) thin film deposited on glass substrate using spray

pyrolysis technique. Structural, morphological and chemical analysis of the film confirms nano-

crystalline nature of CdS thin film with ~ 30 nm crystallites and uniform coating of CdS on glass.

Finger electrodes were made on the film using Ag paste. Photo-detection property of nano-crystalline

CdS thin films was tested under visible light illumination. For photo-detection, the response of

incident light in terms of photo-current was monitored when exposed to different wavelengths

ranging from 420 to 700 nm. The fabricated device showed significant photo-detection at lower

operating voltage (2 V) for low power (< 10 mWcm−2

) light. Time response measurements at

different wavelength show ultra-fast response and decay time and high photo sensitivity at low bias

voltage.

Keywords:Nano-crystalline; CdS; spray coating; photo-detector, ultra fast response and decay time



ICMM:635 | Efficient H2 Production by H2S Splitting Using CNT Blended Ce

Doped TiO2 Thin Film Photocatalyst on Perspex Substrate

M. Anthony Raja1, Preethi V1*, Yash Pal1, Naresh Nalajala2, Chinnakonda S.

Gopinath2 1Hindustan Institute of Technology and Science, Chennai, 603 103, India

2CSIR-National Chemical Laboratory, Pune, 411 008, India


Abstract

Thin film materials are the key elements of photonic, electrical and magnetic devices. Using

the thin film produced from powder material allows easy incorporation for various applications as

because the change in properties of materials and size reduction. A co-precipitation method was used

to prepare the CNT blended Ce doped TiO2 photocatalyst. Thin film of CNT blended Ce-TiO2over a

perspex substrate was prepared using a simple drop-casting method. The structural analysis was

carried out using X-ray diffraction (XRD). The elemental and optical analysis was carried out using

energy-dispersive X-ray spectroscopy (EDAX) and Photoluminescence (PL) studies respectively.

The hydrogen production activity was determined form the data obtained from gas chromatograph.

The thin film of CNT blended Ce-TiO2 was prepared using 1 mg of powder form of CNT blended

Ce-TiO2 catalyst which is coated on perspex substrate (1.25 cm x 3.75 cm). Hydrogen production

activity was studied using simulated sulfide solution. The results had shown that the highest

hydrogen production value of 1850 µmol h-1

g-1

for thin film whereas the same amount of CNT

blended Ce-TiO2 powder showed very less hydrogen production of 83 µmol h-1

g-1

. From the above

results it is inferred that the thin film form outperformed the particulate form in the order of

magnitude. This is because of the increased surface area of thin film materials and less recombination

rate of charge carriers.

Keywords:Co-precipitation method; Gas chromatograph; surface area; thin film materials

Acknowledgements

The authors gratefully acknowledge Hindustan Institute of Technology and Science, Chennai and

CSIR-National Chemical Laboratory, Pune for the laboratory facilities and other research supports.


ICMM:636 | Photocatalytic Hydrogen Production from H2S Using

Nanostructured CNT Blended CdZnS/Fe2O3 Thin Film on Glass Substrate

M. Anthony Raja1, Preethi V1*, Yash Pal1, Naresh Nalajala2, Chinnakonda S.

Gopinath2 1Hindustan Institute of Technology and Science, Chennai, 603 103, India

2CSIR-National Chemical Laboratory, Pune, 411 008, India


Abstract

A co-precipitation method was employed to prepare the CNT blended CdZnS/Fe2O3

photocatalyst. Using the powder photocatalyst, the thin film of CNT blended CdZnS/Fe2O3

photocatalyst over a glass substrate was prepared using drop-casting method. The obtained thin film

was characterized by energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD),

Photoluminescence (PL) and solar hydrogen production studies in order to obtain information on

their chemical composition, structural, optical and hydrogen production efficiency. The hydrogen

production activity of catalyst was evaluated using solar simulator and estimated with gas

chromatograph. The results shown that 1 mg of powder form of CNT blended CdZnS/Fe2O3 catalyst

coated over 4.69 cm2glass substrate (thin film) showed the highest hydrogen production value of

3180 µmol h-1

g-1

compared to the results obtained with 1 mg CNT blended CdZnS/Fe2O3 powder of

2510 µmol h-1

g-1

. From the above results, it was concluded that the thin film form outperformed the

particulate form.This is because of the effective charge separation and maximization of surface area

utilization of thin film photocatlayst.

Keywords:Co-precipitation method; drop- casting method; solar hydrogen production

Acknowledgements

The authors gratefully acknowledge Hindustan Institute of Technology and Science, Chennai and

CSIR-National Chemical Laboratory, Pune for the laboratory facilities and other research supports.


ICMM:721 | Synthesis and Characterization of PbTiO3: Anthracene (C14H10)

Multifunctional Ferrites Using by Solid State Reaction Method

Potharaju Krishna1, DayakarThatikayala2, K.Shanthi1 and C.P. Vardhani1* 1Dept. of Physics, Osmania University,Hyderabad,India.E-mail:[email protected].

2PhD and Postdoc fellow(PDF) ,Hanyang University, South Korea. E-mail:[email protected].


Abstract

The composition of Anthracene and Lead Titanate is prepared using Solid State reaction

method.Anthracene is a solid polycyclic aromatic hydrocarbon (PAH) of formula C14H10, consisting of three

fused benzene rings. It is a component of coal tar. Lead (II) titanate is an inorganic compound with the

chemical formula PbTiO3. It is the lead salt of titanic acid. Lead (II) Titanate is a yellow powder that is

insoluble in water. At high temperatures, lead Titanate adopts a cubic perovskite structure. The samples of

Anthracene Lead Titanate composites of suitable mixture ratio are prepared using Solid state reaction

method.TheCrystal structure of the calcined powders and also sintered ceramics were analyzed using XRD(X-

ray diffraction). The microstructure of the sintered ceramics has been investigated by using SEM(scanning

electron microscopy).The dielectric constants were calculated for different mixture ratios and at different

temperaures are reported in this paper. It was observed that an increasein temperature there is a change in the

dielectric constants has also been reported in this paper

Keywords:Anthracene, Lead Titanate, dielectric properties, SEM,XRD,. Solid State Method, Perovskite,

PAH, microstructure.


ICMM:731 | Induction Motor Desgin Analysis for Electric Vehicle Application

N.V.Bharadwaj1*, Dr.P.Chandrasekhar2,Dr.M.Sivakumar 1Geethanjali College of Enegineering and Technology, Hyderabad, 501301,India

2MGIT, Hyerabad, 500075, India

3Gudlavalleru Engineering College,Gudlavalleru, 521356, India


Abstract

The design of induction motor for Electric Vehicle application is different from that of

conventional induction motor, which is used in various drive applications. The performance

parameters of an induction motor depend on various design parameters including electrical and

mechanical. In this paper study of various parameters such as core axial length, stator inner diameter

and rotor outer diameter is done. The effect of these parameters on induction motor characteristics is

studied using analytical method. The analysis is done one two different induction motors and their

performance is compared.

Keywords:Electric Vehicle; Induction Motor; Design Parameters.

Acknowledgements I thank Geethanjali college management for the support.

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ICMM:737 | Design of Polymeric Type Spacer in a Single Phase Gas Insulated

Busduct for Reduction of Electric Field Stress

K.Sushma1, G.V.Nagesh Kumar1*, M.Aruna Bharathi 2and P.V.S.Sobhan3 1Department of EEE, JNTUA College of Engineering Pulivendula, INDIA

2Department of EEE, Geethanjali College of Engineering and Technology, Cheeryal, Keesara, Hyderabad,

Telangana, India 3Department of EEE, VFSTR University, Guntur, INDIA


Abstract

Spacers are important component in the Gas Insulated systems. Most of the dielectric strength

breakdown and surface flashover cases were due to spacer failures. Non uniform electric field

distribution along the surface of the spacer and high field stress at triple junctions are reasons for

these failures. Accurate modelling of the Spacer geometry is required for a better stress spread as it

enhances the life of the component. Seldom stress control by means of shape modelling results in

difficulties like moulding and fabrication.In this paper, a Polymeric Insulator is designed for a Single

phase GIS for reduction of electric field stress. Electric field calculations for Nitrades, Oxides and

Carbides type nano composites are computed and the reduction of electric field sress is done with the

insertion of metal inserts.

Keywords:Electric Field Stress; Spacer; GIS; Polymeric; Insulator


ICMM:739 | Identification of Linear and Non Linear Curve Fitting Models

Using Particle Swarm Optimization Algorithm

P.Syamala Rao1, Dr.G.Parthasaradhi Varma2, Ch.Durga Prasad3

1Research scholar, Dept of CSE, Acharya Nagarjuna University, Guntur, India

2Professor, Dept of CSE, KL University, Vijayawada, India

3Assistant Professor, Dept of EEE, SRKR Engineering College, Bhimavaram


Abstract

Identification of approximate model of the physical systems can be achieved by fitting the

data. In this paper particle swarm optimization algorithm (PSO) is used for linear and polynomial

curve fittings. Data generated from the known models and curve fitting is done by PSO using reverse

engineering mechanism at the initial stage. In this process of curve fitting, two types of inertia

mechanisms are used in PSO for getting better results. Later, real time financial series forecasting is

considered for validating the PSO estimated regression models. Results shows the dynamic inertia

weight strategy based PSO yields better fitting and avoids additional decisions on control parameters.

Keywords:Data fitting, Regression Models, Particle swarm optimization (PSO)

[email protected]


ICMM:740 | Effect of Lithium Fraction on Glass Transition Temperature Tg

And Ionic Conductivity σ of Lithium Borosilicotitanate Glasses

N.S. Satpute1, A.V. Deshpande2* and V. D. Raut3** 1Department of Applied Physics, Dharampeth M.P Deo Memorial Science College,

Nagpur, 440033(India) 2 Department of Applied Physics, Visvesvaraya National Institute of Technology, Nagpur,

440011(India) 3Department of Applied Physics, G.H.Raisoni College of

Engineering,Nagpur440016(India)


Abstract

Solid state lithium ion conductors are being extensively investigated in the hope of

developing materials with high ionic conductivity, good electrochemical stability and useful

mechanical properties. Such materials have many applications in energy storage and other

electrochemical devices. Lithium ion conducting glasses have advantages over, for example, polymer

based systems, in that conduction can be solely attributed to the lithium species. It has been reported

that , the glass composition containing lithium in borosilicate network gives good conductivity. TiO2

is reported to increase the glass forming ability. Hence TiO2 is added to three different lithium

borosilicate compositions. In the present work, titanium oxide containing lithium borosilicate glasses

have been synthesized by conventional quenching technique.

The XRD was done for all glass samples to conform their amorphous nature. Transport

number measurements were carried out to determine the contribution of ions to the total electrical

conductivity of the glasses. Electrical conductivity (σ) of these glasses has been studied by dielectric

impedance analyzer as a function of frequency at different temperatures in the range 480 to 650 K.

Glass transition temperature Tg for the glasses has been determined by using DTA. The density of all

glass samples has been determined.

It has been observed that the electrical conductivity increases with increasing content of TiO2

which can be attributed to the modification of the structure by the addition of larger titanium ions. A

good correlation has been obtained between the electrical conductivity, activation energy, density

and Tg values. It has been also reported that, there is a very good correlation of lithium fraction,

glass transition temperature and ionic conductivity observed in these glasses

Keywords:lithium borosilicate; TiO2; glass transition temperature; conductivity; lithium fraction

Acknowledgements

One of the authors (NSS) wishes to express sincere thanks to Dr. V. K. Deshpande for providing

research facilities at V. N. I. T., Nagpur


ICMM:755 | Intelligent Controllers for Grid Integrated RES System and their

Challenges: A Brief Review

Sainadh Singh Kshatri1, Dr. Javed Dhillon 1, Dr. M Aruna Bharathi2

1Department of Electrical Engineering ,Lovely Professional University, G. T. Road,

Phagwara-144411, Punjab, India. 2Department of Electrical & Electronics Engineering, Geethanjali College of Engineering

and Technology, Hyderabad, Telangana. 501301

*Sainadh Singh Kshatri: (+91) 9490440220; E-mail: [email protected]

Abstract

A conquest for Science and also Technology and also the ever-growing planet of innovation

trigger numerous innovations. Currently India demandingly picking to beat nonrenewable fuel

sources sparsity issues along with Renewable Energy Sources (RES). Renewable Energy Sources

needs intricate innovations for the usage. Renewable resource resources and also modern

technologies possess prospective to supply options to the enduring electricity troubles being actually

experienced due to the establishing nations. The renewable resource resources like wind power, solar

power, geothermal power, electricity, biomass electricity and also energy tissue innovation may be

made use of to get over electricity lack in India. To overcome the power demand for such a fast-

growing economic climate, India will certainly need an ensured source of 3-- 4 time extra power than

the overall power consumed today.

This work reviews different control techniques and proposes a new control technique Optimal

Recurrent Neural Networks (ORNN) based Controller to mitigate the power quality (PQ)

disturbances of power system. In the proposed approach, optimal weight selection is employed for

enhancing the learning procedure of RNN (ORNN). Here, ORNN technique is utilized for selecting

the ideal control signal of grid inverter through optimal adjustments of the control variables in the

power system. The proposed strategy creates the ideal control of the grid inverter which tries to

enhance the power quality of a power system and manage the line voltage by providing reactive

power compensation. This paper reviews several papers with different control strategies applied to

the grid connected inverter.

Keywords: RES; PV; ORNN.

Please insert

photograph of

the presenting

author.


ICMM:756 | Development of Nanostructure LiMn1.5Cu 0.5O4 usingMicrowave

assisted Sol-gel Method

M. Aruna Bharathi1,*, R.S. Raju1, K. Venkateswara Rao2, M. Sushama2, V.

Subhashini2

1 Geethanjali College of Engineering and Technology,Hyderabad,501301, India

2 Jawaharlal Nehru Technological University, Hyderabad, 500085, India

*Corresponding author. Mobile:, Telephone: (+91) 9908325596; E-mail:[email protected]

ABSTRACT

A high voltage, high power and stable non toxic cathode materials is gaining attention due to

increasing demand for Li-ion battery (LIB) for use in Battery Electrical Energy Storage (BEES)

system. This paper explains the preparation of a thermally stable high voltage LiMn1.5Cu0.5O4

spinel synthesized using Citric Acid Modified (CAM) microwave assisted sol-gel method. The

synthesized sample was characterized using XRD, SEM, HRTEM, EIS and CV. Our powder XRD

analysis shows that the sample has a pure single phase and possessed a good crystallization in the

range of 20-30 nm. The lower weight loss (<10%), as observed from TG/DTA graphs, represents the

nano crystalline LiMn1.5Cu0.5O4 material is thermally stable. The electrochemical studies show single

phase behaviour in the potential range of 4 to 5 V potential region with a good cycling property. The

impedance spectra obtained from the electrode, made out of this material, has semi circles in a high

and intermediate frequency range representing lower charge transfer resistance that enhances the life

cycles of battery. The morphological studies exhibit homogeneous particle distribution in nanoscale.

This uniform distribution is attributed to the microwave treatment, which shortened the synthesizing

time and has overcome the agglomeration of particles. This kind of morphology is very essential for

both the high specific capacity and good cyclebility. Further, the smaller particle size results faster

diffusion of Li to produce effective charge transfer that results in the capacity of the nanostructured

material. Therefore, the nanostructured LiMn1.5Cu0.5O4 is well suited cathode material for LIB

applications in BEES systems.

Keywords:Metal Oxide; Nanostructure; BEES; Spinel; CAM Microwave; Intercalation

e insert

photograph of

the presenting

author.


ICMM:757 | A New Approach to the Construction of Transition Matrix with Application to Control Systems

P. Sailaja1, K.V. K. Viswanadh2 and K. N. Murty*3 1Department of Mathematics, Geethanjali College of Engineering and Technology, Cheeryal (V), Keesara

(M),Medchal (Dt.), Telangana (State), India. [email protected] 23669, Leatherwood Drive, Frisco, Texas, USA 75033. [email protected]

3Department of Applied Mathematics, Andhra University, Visakhapatnam Dist, Andhra Pradesh, India.

* Corresponding Author: [email protected]

Abstract

In this paper we present a new approach to the construction of a transition matrix associated

with first order matrix system of differential equations. This method is unique and is applicable to all

problems that arise in control systems and the tedious calculations so far existing in literature will be

condensed to less than half.





ICMM:2104 | Synthesis And Characterisation Of Iron Oxide Nanoparticles

Using Egg-White

G. Srikanth1, N. Jayarambabu2, K. Venkateswara Rao2** 1MATERIAL SCIENCE AND NANO TECHNOLOGY (MSNT), JNTUHCES, SANGAREDDY-

502273, INDIA2CENTRE FOR NANOSCIENCE AND TECHNOLOGY, IST, JNTUH_HYDERABAD-500085, INDI

**Corresponding author. E-mail:[email protected]

Abstract

Metal oxide nanoparticles have grabbed attention of researchers due to their wide variety

of properties. Recently, iron oxide nanoparticles (NPs) have attracted much consideration due

totheir unique properties, such as super-Para magnetism, surface-to-volume ratio and greater

surface area. Iron oxides exhibit great potential in the numerous fields such as biomedicine,

agriculture, and environment. Iron oxide nanoparticles (Fe NPs) are often synthesized using

chemical methods, which releases environmentally hazardous chemicals. Recent studies have

shown the synthesis of iron oxide nanoparticles using biological methods from plant extracts,

micro-organisms and bio-degradation. In the present study, iron oxide nanoparticles were

synthesized using egg white extract. It contains albumen, acts as both capping and reducing agent.

Precursors taken are both ferrous chloride and ferric chloride. The main focus of the study is to

synthesize, characterize the Iron-Oxide nanoparticles along with it’s Nano-fluid properties. The

prepared Nano-powders were characterized by using X-Ray Diffraction (XRD) for determining

crystallite size, lattice constant and unit cell volume, Field-Emission Scanning Electron

Microscopy (FE-SEM) to study morphological characteristics, Energy-dispersive X-ray

spectroscopy (EDS) for elemental analysis, Fourier-transform Infrared Spectroscopy (FTIR) for

functional group analysis, Particle size analyser(PSA) to study average crystal size, Uv-Vis

Spectroscopy (Uv-Vis) to study optical properties of the sample.

Table of contents

Flow chart for the synthesis and FE-SEM images

Keywords:Bio-synthesis; IO NPs; Egg-White; Characterization; Nano-fluid; FE-SEM;

Acknowledgements: The authors would like o thank CNST of JNTUH Institute of science and

Technology, kukatpally for providing lab facilities and encouraged to carry out research project.

Pleas

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phot

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prese

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auth

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ICMM:2105 | Evolution of magnetic properties of Nano Ca-hexaferrites with

Al substitution in hydrothermal synthesis

Ch. Mamatha1*, P. Subhashini2, M. Krishnaiah2

1Department of Basic Science, Sri Venkateswara College of Engineering,

Vidya Nagar, Banglore 2Department of Physical Sciences, Sri Padmavati Visvavidyalayam,

Tirupati-517502, India.


Abstract

Nano technology is fascinating researchers due to the abundant functions. Synthesis of

nanostructure materials is one of the most enthusing areas in materials science due to their unique

physical property and potential applications. Aluminum substituted M-type Hexaferrites are

ferrimagnetic materials. Series of Aluminium substituted Calcium Hexaferrite samples have been

prepared by hydrothermal synthesis method. Structural properties of the samples are studied with

XRD, SEM and TEM. Magnetic properties are carried out with the help of vibrating sample

magnetometer at room temperature. Effects of Aluminium substitution and synthesis method on

structural and magnetic properties are studied. XRD data of all samples have established the

formation of single-phase M-type (Magneto plumbite) hexagonal ferrites with the space group of

P63/mmc. Grain size, lattice parameters and volume of the samples are calculated. Lattice parameters

are found to shrinkage with increasing Al content. Since hydrothermal synthesis is low temperature

and high-pressure synthesis, particle size is less compared to other standard methods and particles are

found to be in Nano size. SEM analysis revealed that the particles are of similar grain morphology.

From these studies it is apparent that Al substituted Ca-hexaferrites are ferrimagnetic at room

temperature.

Keywords: Nano hexaferrites; Ferrimagnetism; Hydrothermal synthesis, Magneto plumbite.


ICMM:2111 | Optical and Structural Studies of B2O3-ZnO-Na2O-Li2O Glasses

Containing Ag Nano Particles

A. Ashok, J. Bhemarajam, G. Upender, M. Prasad* Department of Physics, Osmania University, Hyderabad-500007, Telangana State, India

*Corresponding author. E-mail address: [email protected] (M. Prasad)

Abstract

B2O3-ZnO-Na2O-Li2O (BZNL) based glasses containing silver nano particles (Ag NPs) were

prepared by melt-quenching technique. Four reducing agents such as Bi2O3, As2O3, Sb2O3, SnO were

separately used to reduce Ag+ ions into Ag

o atoms in the form of nano particles. The glasses were

characterized by XRD, FTIR, DSC, Optical absorption and Raman spectroscopy. The amorphous

nature of the prepared glasses was confirmed through XRD and SEM measurements. The EDS

spectra showed that all the added elements were present in the respective glasses. The vibrational

features of various functional groups like stretching vibrations of B–O linkages in BO4 tetrahedral,

asymmetric stretching vibrations of B–O bond in BO3 trigonal units and vibrations of Zn–O bonds

from ZnO4 groups were identified by FTIR and Raman spectroscopy. From optical absorption studies

it was observed that as prepared samples except SnO did not show characteristic surface plasmon

resonance (SPR) band of Ag. Therefore, all the samples were heat treated at 500oC in accordance

with DSC thermogram to form Ag nano particles and were confirmed by optical absorption spectra.

It was observed that the doping of SnO to BZNL-Ag glass system could assist the growth of silver

nano particles.

Keywords: Glasses; Raman spectra; Optical absorption; FTIR; Ag nano particles


ICMM:2114 | Studies on Dielectric Properties of Polymer Blend of PANI with

PVDF/KDP Composites

Bharati Basavaraj1,*, Hajeebaba K Inamdar1,2 and Basavaraja Sannakki1,*

1Department of Post Graduate Studies and Research in Physics, Gulbarga University, Kalaburagi


* Corresponding author. Tel.: +91 9740478781,(Dr. BasavarajaSannakki)

E-mail address:[email protected]&[email protected]

Abstract

The polymer blend composites of PANI with PVDF/KDP have been synthesized by

polymerization method. The different polymer blend of PANI with PVDF/KDP composites are

obtained by adding 10, 20, 30, 40 and 50 wt% of KDP were added with PVDF of 1N concentration

during PANI synthesis to get the polymer blend of PANI with PVDF/KDP composites. The

synthesized samples of PANI and polymer blend of PANI with PVDF/KDP composites polymer

were characterized by using X-Ray diffraction (XRD). The dielectric properties such as dielectric

constant, dielectric loss and AC conductivity for the composites of polymer blend of PANI with

PVDF/KDP composites at different weight percentages are studied as a function of frequency in the

range 5Hz–35MHz at room temperature. It is found that the dielectric permittivity decreased

exponentially at lower frequency region up to 180 Hz and then the dielectric permittivity remains

constant at higher frequency region as the frequency increased. It is also observed that the dielectric

permittivity decreased as the weight percentages of KDP increases in PVDF with PANI. AC

conductivity increased for PANI, polymer blend of PANI with PVDF/KDP composites at 10, 20, 30

and but for 40 and 50 wt% it is decreased.

Keywords: polymer blend of PANI with PVDF/KDP dielectric constant, dielectric loss and A.C

conductivity, KDP.




ICMM:2115 | Electrical Property Study on Polyaniline/Cadmium

Oxidecomposites

Narsappa1, Hajeebaba K Inamdar2, Sasikala. M3, M.V.N. Ambika Prasad4*

1Department of ECM, J.B Institute of Engineering and Technology, R.R Dist, Hyderabad-500075.

2 Department of Physics, J.B Institute of Engineering and Technology, R.R Dist, Hyderabad-500075.

3Department of EEE, GodutaiWomens f Engineering College, Sharananagar, Kalaburagi, India 585102


.

* Corresponding author. Dr. M.V.N. Ambika Prasad, Tel.: +91 9448405817.

E-mail address:[email protected]

Abstract

Cadmium oxide doped in polyaniline (CdO /PANI) composites were prepared with various

weight percentages by in situ polymerization method using aniline, ammonium per sulfate, and CdO

as starting materials. The temperature& frequency dependent conductivity behavior of PANI / CdO

composites have been studied. The formation of PANI and PANI / CdO composites with regards to

the structural and microstructural properties of the materials were investigated by XRD and SEM

techniques. The DC conductivity of Pure PANI and its composites have been measured in the

temperature range from 30°C to 160°C. The variation of σac with frequency obeys power law except

a small deviation in the low frequency region and the σac increases with increase in CdO

concentration.

Key words: Conductivity, SEM, XRD, PANI, CdO


ICMM:2126 | A Density Functional Study of Hydrogen Storage in Li

Decorated C20 Fullerene

Rakesh K. Sahoo1*, Shakti S. Ray1 Sridhar Sahu1

1High Performance Computing Lab, Department of Physics, Indian Institute of

technology(Indian School of Mines), Dhanbad, Jharkhand, 826004, Indian.


Abstract

Molecular adsorption of hydrogen in lithium decorated smallest fullerene (C20Li2) has been

carried out within the framework of density functional theory (DFT) at B3LYP/6311+G(d,p) level.

Hydrogen molecules were added sequentially till no more hydrogen molecules could accommodate

by the C20Li2. The global reactivity descriptors such as, electronegativity (χ), hardness (ɳ), and

electrophilicity (ω) were calculated to confirm the kinetic stability of the clusters. It has been

observed that the C20Li2 clusters could hold maximum of eight hydrogen molecule with average

adsorption energy in the range 0.11 - 0.06 eV/H2 resulting in gravimetric density of 5.98 wt% which

is in accordance with the target set by US Department of Energy (US-DOE) for optimal hydrogen

adsorption. The average adsorption energy value and the distance between Li atom and hydrogen

molecules indicates the process to be physisorption type. Topological analysis using Bader's quantum

theory of atoms in molecules (QTAIM) concluded that the interaction between H2 and Li atom to be

closed shell type with ρ < 0.20 a.u with positive corresponding to ionic or van der Walls bonds.

Thermochemistry calculations were carried out to calculate the Gibbs free energy corrected average

adsorption energy which reveals the feasible adsorption temperatures and pressures. The desorption

temperature were calculated using Van’t Hoff equation.

Keywords: DFT, Fullerene, QTAIM, Hydrogen storage, Thermochemistry.

Acknowledgements

We thankfully acknowledge Indian Institute of Technology (Indian School of Mines), Dhanbad for

providing all research facilities.


ICMM:2128 | High Performance Er, Yb - Doped Ceo2 Bifunctional

Upconversion Particles for Dye Sensitized Solar Cells with Platinum Free

SnS Counterelectrode

A. Meenakshamma1, M. Gurulakshmi1, S. Narendra Babu2, M. Raghavender1, * 1Department of Physics, Yogi Vemana University, Kadapa-516005, A.P., India

2Department of Physics, Osmania University, Hyderabad 500007, T.S. India.


Abstract

Upconversion Er3+

/Yb3+

co-doped CeO2 submicron sized particles synthesized through classical

hydrothermal method for development of dye sensitized solar cells1 (DSSC). The insertion of

upconverter CeO2:Er3+

/Yb3+

into photoelectrode (PE) by spin coat method evidenced power

conversion efficiency (PCE) of 6.91 %, JSC = 15.8%, VOC = 0.62 and FF = 0.7 using platinum free

counterelectrode (CE) made with SnS through spray coat method. The test device performance is

further optimized by introduction of carbon particles into SnS CEs. The results are compared with

the standard platinum based DSSC (8.32 %) and evaluated varies photovoltaic parameters.399

Keywords: Upconverter DSSC, Pt-free SnS counterelectrode, LiI effect, Bifunctional CeO2: Er/Yb.

Acknowledgements

A.Meenakshamma is thankful to SERB, DST for awarding JRF and financial support through

EMR/2016/007049. M. Raghavender thanks SERB, DST (Grant No. EMR/2016/007049) for

financial support to carry out this work.


ICMM:2131 | Microstructural and Electrical Properties of Mg substituted

Li4Ti5O12 Synthesized by Ceramic Method

B. Vikram Babu1*, M. Sushma Reddi2, G. Chandana1, A. Ramamkrishna1, Tulu Wegayehu1,

K. Samatha1, V. Veeraiah1

1Department of Physics, Andhra University, Visakhapatnam, India -530003

2Department of Physics, Dr. B. R. AmbedkarUniversity, Srikakulam, India -532410

*Corresponding AuthorE-mail:[email protected], Mobile: (+91) 9550501803

Abstract:

In this paper the effect of magnesium (Mg) substitution in lithium (Li) site of spinel lithium titanate

(Li4Ti5O12, LTO) anode materials for lithium-ion batteries (LIBs) is extensively studied. The anode

materials based on the formula Li4-xMgxTi5O12 (x=0 and 0.2) are prepared by conventional ceramic

method at 850° C for 16h. Their phase formation processes, crystal structures, morphology, elemental

analysis, cation distribution and electrical properties were studied using XRD, SEM, EDX, FT-IR and

CIS characterization techniques. The X-ray diffraction (XRD) studies revealed the exact structure of

the material which belonged to cubic spinel group with Fd-3m space group. The phase morphological

features and grain size distribution were found using scanning electron microscopy (SEM) and the

grainsize was found to be in the range 0.9-1.1μm. The FT-IR results revealed the structure of the oxide

lattice built of MO6 (M= Li, Mg and Ti) as tetrahedra and octahedra. The electrical impedance studies

showed the material to exhibit excellent conductivity which was found to be 2.8×10-5

S/cmat ambient

temperature for frequency ranging from 20 Hz to 1MHz.

Keywords: Anode material, XRD, FT-IR, LCR.

mailto:*[email protected]


ICMM:2132 | Field Stress Control of a Post Type Insulating Spacer with

Functionally Graded Material in a Gas Insulated Busduct

N. Chaitanya Dathu1, G.V. Nagesh Kumar1*, M. Aruna Bharathi 2 and B. Sravan Kumar3

1Department of EEE, JNTUA College of Engineering Pulivendula, INDIA


Telangana, India 3Department of EEE, GITAM University, Visakhapatnam, INDIA


Abstract

High voltage electric utilities are hindered with certain difficulties like high stress distribution and

insulation damage that are needed to be taken care for reliable operation of the system. In a Gas

Insulated bus duct, high field stress along the spacer surface especially at the contact point of the

conductor, insulator and gas (called triple junction) is a major factor affecting the insulation strength.

Research studies of shaping the spacer were found effective in controlling the stress distribution but

found to be complicated in real time application. In this paper, functionally graded materials of post

type spacer with different permittivity are proposed for controlled field stress distribution at the

spacer surface. Electric field calculations for three gradings namely grading to high, grading to low

and U shape are done. Properly shaped metal inserts are incorporated to have a uniform stress

distribution along the spacer.

Keywords: Electric Field Stress; Spacer; GIS; FGM; Insulator


ICMM:2133 | Insulation Integrity of Disk Type Spacer with U- type Graded

Material in a Single Phase Gas Insulated Busduct

K.Sushma1, G.V.Nagesh Kumar1*, M.Aruna Bharathi 2and Akanksha Mishra3

1Department of EEE, JNTUA College of Engineering Pulivendula, INDIA


Telangana, India 3Department of EEE, Vignan’s Institute of Engineering for Women, Visakhapatnam, INDIA


Abstract

High voltage power equipments are becoming more dense and subjected to high stress leading to

insulation failure. Insulator design plays a vital role in improving the reliability of the system. In GIS

the solid supporting structures called spacers are vulnerable to more stress and their design is of

concern. The point of contact of the conductor, gas and spacer called the triple point junction in Gas

insulated bus duct is highly stressed region and is responsible for major insulation failures.

Switchgear design in GIS needs thorough field distribution at the supporting structures called

spacers, which is important for healthy operation of the system. In this paper, U – Type graded

material is taken for Disk type spacer with different permittivity for controlling field stress

distribution at the spacer surface. Electric field calculations for three gradings namely grading to

high, grading to low and U shape are done and compared.

Keywords: Electric Field Stress; Spacer; GIS; U- type FGM; Insulator.


ICMM:2135 | Structural Properties of Erbium (Er3+) Substituted Cu-Cd

Ferrite Nano Particles

G. Vinod1, J. Laxman Naik1, K. Rajashekar2, B. Naresh1, B. Babu Rao1 and D. Ravinder1 1Department of Physics, Osmania University, Hyderabad-500007, Telangana, India

2Kamala Institute of Technology & Science, Singapur, Huzurabad-505468, Telangana, India

Corresponding author. Mobile: +918985279013; E-mail:[email protected]

Abstract

Cu-Cd-Er ferrite nano particles having the compositional formulaCu Cd Erx Fe2-x O4

(Where x=0.001, 0.0015, 0.0020) was synthesized by CGAC method (Citrate-Gel Auto

Combustion). The structural properties were carried out by X-ray diffraction (XRD) and Scanning

Electron Microscopy (SEM) . XRD studies are revealed that the structure of these nanoparticles are

conformed with the single phase cubic spinal structure. The crystallite size lies in the range 21.0-42.8

nm. The lattice parameter has been calculated from d-spacings and interpreted on the basis of ionic

radius. The observed results can be explained on the basis of erbium composition.

Keywords: CGAC method (Citrate- Gel Auto-Combustion), Ferrite Nano particles, XRD, SEM and

FTIR.


ICMM:2141 | Application of Magnetic Nanoparticles in Water Purification

Shaikh Saima Anam, Vishwadeep Khosepatil, Dr. K.M. Jadhav Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad,

431 001, India.

*Shaikh SaimaAnam, Mobile no.: 7620238917, E-mail: [email protected]

Abstract

Recent advances in nanoscience have paved way for magnetic nanoparticles (MNPs) to be

used for water purification. In this study, magnetic nanoparticles were introduced due to their

impressive properties like high adsorption capacity and high extraction efficiency, high surface area

to volume ratio (even for particles less than 30nm in size), ability of magnetic immobilisation and

generation of oxidative stress in microbial contaminants thereby leading to heavy metal adsorption

and anti microbial activity. The MNPs were synthesized by chemical co-precipitation method. The

results showed high bacteria removal efficiency (99.5%), removal of heavy metals (Cu, Cr, As, Pb)

from acqueous system to a much better extent. It is suggested that MNPs are worth applying as this

technique is simple, cost effective and reusable. The toxicity test suggested that no significant

genotoxicity or cytoxicity existed in water treated with few MNPs (poly-allylamine hydrochloride)

showing they are biocompatible, whereas research on environment effect of few MNPs (iron oxide)

has to be addressed.

Keywords: Magnetic nanoparticles, bacteria, adsorption, extraction, surface area, heavy metals,

toxicity, cost effective, environment, biocompatible.

Acknowledgements

The authors extend their sincere thanks to UGC-SAP Programme (F.530/16/DRS-I/2016 (SAP-2) Dt.

16-04-2016) and DST-FIST (Project NO. SR/FST/PSI-210/2016 (C) dtd.16/12/2016) for providing

financial support.


ICMM:2145 | Investigation of the TiO2- Multi-wall carbon nanotubes

(MWCNTs) composite as an effective photoanode in the dye sensitized solar

cell

Sai Kumar Arla1, Hussen Maseed2, Siva Sankar Sana 1, Venkataramana

Badineni 1, Vijaya Kumar Naidu Boya 1,* 1Department of Materials Science and Nanotechnology, Yogi Vemana University, Kadapa

-516005, Andhra Pradesh, India 2School of Engineering Sciences and Technology, University of Hyderabad, Gachibowli,

Hyderabad-500046, India.

*Corresponding author: Mobile: +91 9966320402; E-mail:[email protected],

Abstract

In this work, we report the synthesis of TiO2 nanotubes (TNTs) using hydrothermal method

and incorporated MWCNT insitu to make a hybrid nanocomposite of TiO2 - MWCNTs. The as-

synthesized TiO2 - MWCNTs composite structural, optical, elemental analysis was characterized by

using different techniques such as X-ray diffraction (XRD), UV-visible spectroscopy, and energy

dispersive spectroscopy (EDAX), elemental mapping. The morphology and formation of TiO2 -

MWCNTs composite nanotubes was confirmed from electron microscopy techniques viz., field

emission scanning electron microscope (FE-SEM) and high-resolution transmission electron

microscope (HR-TEM). The effect of concentration of MWCNTs in TiO2-TNTs photoanode was

investigated on the performance for dye-sensitized solar cells (DSSCs) application. The performance

of DSSCs were evaluated by measuring photocurrent voltage (I-V) characteristics and

electrochemical impedance spectroscopic (EIS) and found that the power conversion efficiency of

DSSC depends on the concentration MWCNT in the photoanode. DSSC fabricated using 6 wt % of

MWCNT with respect to TiO2 containing nanocomposite as photoanode has shown high power

conversion efficiency (PCE) of 1.99%.

Keywords: TNTs; MWCNT; Photoanode; DSSCs.



ICMM:2146 | Effect of Binder Material in Preparation of Carbon Free TiO2 as

Photo Anode in Dye Sensitized Solar Cells

Sai Kumar Arla 1, Siva Sankar Sana 1, Venkataramana Badineni 1, Hussen

Maseed2, Vijaya Kumar Naidu Boya 1,* 1Department of Materials Science and Nanotechnology, Yogi Vemana University, Kadapa –

516005, Andhra Pradesh, India 2School of Engineering Sciences and Technology, University of Hyderabad, Gachibowli,

Hyderabad-500046, India.

*Corresponding author: Mobile: +91 9966320402; E-mail:[email protected],

Abstract

In dye-sensitized solar cells, binder used in fabrication of semiconductor photo anode layer

plays a significant role on the surface morphology of the anode film, which has impact on the overall

performance of the DSSCs devices. In this work, two synthetic polymers (poly (vinyl alcohol)

(PVA), poly (vinylpyrrolidone) (PVP)) and their blends (1:1, 1:3, 3:1) are used as a binder and

investigated their effect on the efficiency of the cell. DSSC devices are fabricated using commercial

TiO2 nanopowder as photoanode anode, N719 dye, Idolyte HI-30 as electrolyte and Plastisol T as

counter electrode. Among DSSCs fabricated, the sample prepared with pure PVP as binder shows

the highest power conversion efficiency of 1.87%, short-circuit photocurrent density and open-circuit

voltage of 10.14 mA/cm2 and 0.56 V, respectively.

Keywords: DSSCs; PVA; PVP; XRD; SEM.

Acknowledgments

The authors are grateful to the Department of Science and Technology of New Delhi (DST -

DST / INSPIRE Fellowship / 2014 / IF 140988) in India who provided funds for young researchers

and Dr. M. Raghavender, Assistant professor, Dept of Physics, Yogi vemana University, Kadapa to

providing solar simulator.



ICMM:2147 | Modulational Instability in Diffusive Semiconductor Plasmas:

Effect of Streaming Colloids

P.S.Malviya 1*, N.Yadav 2 1Department of Physics, Govt. J.N.S. Post Graduate College, Shujalpur 465333, India

2School of Studies in Physics, Vikram University, Ujjain 465010, India


Abstract

We report the effect of streaming colloids on modulational instability (MI) using a

hydrodynamic model of semiconductor plasmas. Ferroelectrics (FEs) are technologically important

because of their optical nonlinear properties. We find that the effective susceptibility without

colloids is order of 22193

.10 Vm

effe and with effect of streaming colloids is order of

22233

.10 Vm

effd which shows effect of streaming colloids. The colloidal grains (CGs) in

diffusive semiconductor plasmas found to bemodifying the characteristic and alter the optical and

physical properties of the material.

Keywords: Colloids; Modulational Instability (MI); strain dependent dielectric constant (SDDC);

Diffusive Semiconductor Plasmas.


ICMM:2149 | Synthesis and Characterization of Zirconia Nanoparticles

J. Vinay, D. Rakesh, CH. Shilpa Chakra* CNST, IST, JNTU, Hyderabad, Telangana State, 500085, India

*Corresponding author. Mobile: (+91) 7799438736


Abstract

In this study, the synthesis and characteristic results of Zirconia (ZrO2) nanoparticles was discussed.

Synthesis of ZrO2 nanoparticles was done by Sol-Gel method to achieve controllable particle

morphology. Zirconia nanoparticles have a number of excellent properties such as high strength,

fracture toughness, wear resistance, hardness and chemical resistance. ZrO2 nanoparticles was

characterized by Fourier Transform Infrared Spectroscopy (FTIR), UV-visible Spectroscopy ,

Particle Size Analyzer(PSA) and X-ray Diffraction (XRD). we can further use these nanoparticles as

effective anti-corrosion agents when composited with PANI.

Keywords: ZrO2 nanoparticles; Controllable morphology; Sol-Gel method; PANI.

Graphical Abstract :

Acknowledgements :

This work was supported by Centre for Nanoscience and Technology, Institute of Science

Technology, JNTU Hyderabad. The first author would like to acknowledge AICTE for TEQIP-III for

R&D support.


ICMM:2150 | Morphology Tailored 1-D Zn Nanorods for Supercapacitor

Application

K. Jagadeeshwar Reddy1, B. Geeta Rani1, M. Sai Bhargava Reddy1, K.

Venkateswara Rao1* 1Center for Nano Science and Technology, Institute of Science and Technology, JNTU

Hyderabad, India

*Corresponding author. Mobile: (+919440858664) ;

E-mail:[email protected].

Abstract

In this work, One dimensional (1-D) Zinc oxide nanorods (ZONR) was synthesized as an

electrode material for super capacitor application. Super capacitor as energy storage devices has

gained lot of importance in recent research studies because of demand in the field of energy storage

due to urbanization. A simple and cost effective hydrothermal method was employed for synthesis of

1-D ZONR. The prepared ZONR was characterized by X-ray diffraction (XRD), Scanning Electron

microscope (SEM), Fourier Transform Infrared spectroscopy (FT-IR). The XRD pattern confirmed

hexagonal wurtzite crystal structure. The SEM images demonstrated the nanorod formation and

FTIR confirmed the functional groups present in the synthesized ZONR. Electrochemical

characteristics of ZONR were investigated for super capacitor performance using cyclic

voltammetry, galvanostatic charge-discharge and impedance studies. These studies of ZONR

exhibited a high specific capacitance with better cyclic stability, making it a suitable electrode

material for super capacitor application.

Keywords: Zinc oxide; Nanorods; SEM; Super capacitor; Stability.

Acknowledgements

The authors would like to thank their sincere appreciation to the Center for Nano science and

Technology, IST, JNTUH for providing the research facilities.

Please insert

photogr



ICMM:2151 | Synthesis and Characterization of nano Sio2 Nanoparticles

Pavar Saikumar, D. Rakesh, CH. Shilpa Chakra*

Centre for Nano Science and Technology, IST, JNTU, Hyderabad, Telangana State, 500085, India

*Corresponding author. Mobile: (+91) 7799438736 E-mail: [email protected]

Abstract

In this work Nano SiO2 nanoparticles were synthesized using Sol-Gel technique. As synthesized

particles are been analyzed by varying the parameters (aging time, pH etc.) that affects the particle

size and hydrophobicity, hydrophilicity nature and UV light reflectance properties are also been

varied under controlled conditions. Nano SiO2 nanoparticles and thin films are been analyzed using

different characterization techniques like Fourier Transform Infrared Spectroscopy (FTIR), UV-

visible Spectroscopy, Particle Size Analyzer (PSA) and X-Ray Diffraction (XRD), Contact angle

measurement. Hydrophobic nature is been analyzed over different substrates.

Keywords: SiO2 nanoparticles; Sol-Gel method, UV reflectance, Hydrophobicity, Hydrophilicity.



ICMM:2152 | Antioxidative copper nanoparticles for conductive inks

Gangarapu Akhila, D. Rakesh, Dr. Ch. Shilpa Chakra*

Center for Nano Science and Technology, Institute of Science and Technology, JNTU

Hyderabad, India

*Corresponding author. Mobile: (+917799438736) ;


Abstract

Conductive inks are a recent progress in electronics and have a promising future applications

in flexible electronics and smart applications. Due to low melting temperature, low price and high

conductivity, copper nanoparticles have great potential to substitute conductive polymers, silver and

gold nanoparticles and others in conductive inks. Here we developed a new, simple and green

method to synthesize copper nanoparticles, which have the average size of around 92 nm and show

remarkable ability to prevent oxidation. Various characterization techniques like X-Ray Diffraction

(XRD), Particle Size Analyzer (PSA), UV Visible Spectroscopy, Fourier Transform Infrared

Spectroscopy (FTIR) were carried out. Using the copper nanoparticles for conductive ink, the

resistivity of the copper conductive films was 18.9µΩ•cm which was just about tentimes higher than

bulk copper's resistivity. The proposed approach to synthesize copper nanoparticles for high

performance conductive ink presents potential applications in flexible electronics.

Keywords: Copper Nanoparticles; conductive inks; electrical conductivity; flexible electronics; inks

Acknowledgements

The first author would like to acknowledge AICTE for GATE Fellowship and TEQIP-III for R&D

support.


ICMM:2155 | Enhanced Electrical and Optical properties of Al doped and

ZnO nanoparticles for Optoelectronic Application: Eco-friendly Green Route

Veena Ragupathi1, Manukonda Madhu babu2, Puspamitra Panigrahi1

and N. Ganapathi Subramaniam*3

1Centre for Clean Energy and Nano Convergence (CENCON), Hindustan Institute of

Technology and Science, Chennai – 603 103, India 2Department of Aeronautical Engineering, Hindustan Institute of Technology and

Science, Chennai– 603 103, India 3Quantum Functional Semiconductor Research Centre (QSRC), Dongguk University,

Seoul, South Korea 100-715.

*Corresponding author. E-mail:[email protected]

Abstract

Optoelectronic materials have been developed greatly due to the wide usage of Liquid crystal

displays, touch screens and light-emitting devices. In this work, a simple, eco-friendly green

synthesis method has been adopted for the synthesis of pure and Al doped ZnO nanoparticles (1, 3

and 5 wt. %). Bio-extract was extracted from Citrus Aurantium peel. The structural, optical and

electrical properties of the as-synthesized material were analysed by X-ray diffraction, Scanning

Electron Microscopy, UV-Visible spectroscopy and Hall Effect measurements. XRD spectra indicate

the presence of hexagonal wurtzite structure. The crystalline size is decreased with increasing Al

concentration. Scanning electron microscopy results indicate that the addition of Al changes the

morphology from rod shape to platelets shape. UV-Visible results infer the shift in the band edge

towards lower wavelength and the bandgap increases with Al concentration. Hall effect

measurements reveals the enhanced carrier concentration in 5 wt% Al doped ZnO with the values of

1.3 X 1021

cm-3

.

Keywords:Al doped ZnO, Bio-extract, Green Synthesis, enhanced optical and electrical property

Acknowledgements

Authors are grateful to the financial support from the management of Hindustan University through

CENCON. One of the author Veena thanks, the research funding from Dongguk University though

QSRC.

Please insert

photograph of

the presenting

author.


ICMM:2157 | Synthesis and Development of Silver nanoparticles decorated

Polymer Films for Room Temperature Sensing

Anju Jolly1, Saraswati Kailasa2*, Dr. Gurumurthy S C1

1Manipal Academy of Higher Education, Manipal, 576104, India.

2Jawaharlal Nehru Technological University (JNTUH) Hyderabad, 500085, India.


Abstract

Now a days thin film technology with nanoparticles playing a major role in the technological

advancement in the areas of photonics, optoelectronics, sensors, magnetic devices, catalysts, and

antimicrobial coatings. Moreover, the metal nanoparticles interspersed in polymer matrix have

exclusive structural properties. Many methods have been used to decorate nanoparticles on polymer

substrates. However long term stability and longevity become the major challenges. Therefore this

paper reports the vacuum evaporation of silver nanoparticles onto polymer substrate. The dip coating

process has been used to get uniform film. As synthesised silver nanoparticles were characterised by

various characterisation tools such as phase identification by XRD, optical microscopy and

morphology were confirmed by Scanning electron microscopy. The films are deposited for thickness

ranging from 25-75 nm held at a temperature of 413 K using thermal evaporation at different

deposition rates 0.1 to 0.4 nm/s in high vacuum of 1x 10-5

Torr. The results of the optical absorption

studies indicate the formation of particulate films. These films can achieve good response and

sensitivity for the room temperature gas sensing application.

Keywords: Silver nanoparticles; thin films; optical microscopy; room temperature; sensitivity.

Acknowledgements

This work was supported by Manipal Academy of Higher Education, Karnataka and Jawaharlal

Nehru Technological University ( JNTU), Hyderabad.

Please

insert

photograph

of the

presenting

author.


ICMM:2159 | Structural and Electrical Properties of PANI+SWCNT

Nanocomposites Prepared by Chemical Mixing Method

P. Raju1, A. Geetha2, S. Uday Kumar2, G. Neeraja Rani1*

1Department of Physics,

2Department of ECE

Geethanjali College of engineering and technology, cheeryala, Hyderabad, Telangana, India-501301


Abstract

Carbon-based nanoparticles have recently generated a great attention, as they could

createpolymer nanocomposites with enhanced transport properties, overcoming somelimitations

ofelectrically-conductive polymers for high demanding sectors.The polymer polyaniline (PANI)

matrix single walled carbon nanotube (SWCNT) nanocomposites were prepared using solution

mixing method.The structure and morphology of the SWCNT+PANI nanocomposites is studied

using by X-ray diffraction (XRD), Fourier Infrared spectroscopy (FTIR) and scanning electron

microscopy (SEM). The dielectric and conductivity properties were measured and analysed. Its

observed from the results that the conductivity, dielectric constant and dielectric loss increases with

increase in weight percentage of SWCNT in nanocomposites.

Keywords: Polymers; SWCNT; nanocomposites; electrical properties.

Acknowledgments

Authors are grateful to the financial support from Defence Research and Development Organisation -

DRDO.



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ICMM-2019 0 Book of Abstracts · 2020-02-14 · Chairman, Geethanjali group of institutions Message...

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