Post on 18-Jan-2018
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JP Nuclear Materials
SP3: Development of Ceramic Materialsfor Next Generation Nuclear Reactors
Françoise MadayENEA, Italy
SP3 Coordinatorfrancoise.maday@enea.it
JP Nuclear Materials
www.eera-jpnm.euPage 2
Materials challenges for GFR & LFR
LFR assets: Inherent high safety features
LFR materials issuesCorrosion/erosion of materials in lead implying strict control of temperature,
dissolved oxygen & speed.
Material innovation is required for pump impeller
Very emerging materials with promising capabilities are MAX phases (ternary carbides, e.g. Ti3SiC2 )
GFR assets: Energy efficiency,Generation of process heat
SiCf/SiC is the only material that fulfills most requirements
GFR clad requirements for safetyNo melting
Leak tightness Structural integrity
Heat transfer
JP Nuclear Materials
www.eera-jpnm.euPage 3
State-of-the-art SiC-based technologies for GFR fuel cladding
Nuclear-grade
SiCf/SiC composite
Candidate material also for Fusion, long studied Stability demonstrated up to 72dpa
GFR fuel cladding
SiCf/SiC sandwich clad technology is a breakthrough from a French national programs lead by CEA
It guarantees leak-tightness for increased safety
Fabricability of a SiC/SiC clad prototype fully
demonstrated!
JP Nuclear Materials
www.eera-jpnm.euPage 4
Research in SP3:SiCf/SiC for GFR fuel cladding
2011-2014: Coordination and support action; FP7/MATTER (0.2 PY/Y from EC / 50%) Identification of breakthroughs on SiCf/SiC technologies from independent European R&D
programs Identification of targets and available experimental tools/facilities Definition of priorities Integration into common collaborative framework
2014-2017: FP7/MatISSE IRP (2 PY/Y from EC / 50% + 3 PY/Y in-kind)
JP Nuclear Materials
www.eera-jpnm.euPage 5
Research in SP3:MAX phases for LFR pump impeller
GOAL: To demonstrate the potential of MAX monoliths /cermets as materials for MYRRHA pump impeller, based on key criteria.
Go/no-go task about MAX phase technologies for LFR pump impeller
Go/no-go task about MAX phase potentiality for other LFR components to increase safety
If MAX phase potential demonstrated (TLR ~ 2) funding required to go beyond
2014-2017: FP7-Euratom MatISSE IRP; 1 PY/Y fully national
JP Nuclear Materials
www.eera-jpnm.euPage 6
Ongoing work and next steps
Development of joining technology for SiCf/SiC clad hermetic sealing (in-kind PP)
Scale-up SiCf/SiC sections to the specified length
Standardization of new characterization tests on non-standard sample shapes…
MAtISSE (~2 PY/Y / 50% + 3 PY/Y national)
2014 20252017
Conditions for further progress: availability of the necessary resources: Infrastructures for integrated experiments (especially those involving irradiation) Funding support for very expensive experimental campaigns
Multiple effects/multiple interaction integrated experiments
Investigating lower cost manufacture methods than reference CVI
Issue of nuclear-grade fibre production (exclusively developed in Japan): opportunity to promoting a European industrial chain?
JP Nuclear Materials
www.eera-jpnm.euPage 7
SiCf/SiC potential fields of application
Most immediate perspectives for synergies (nuclear) Advanced high T applications
JP Nuclear Materials
Thank you for your attentionAny question?