Morgan Advanced Ceramics capabilities for the medical
market
ContentsMAC locationsCeramicsGlass materialsCeramic assembliesBraze alloys/Precious metalsMetal injection moldingCoatings/Surface treatmentsAvailable processes
Morgan Advanced Ceramicsa division of Morgan Crucible plc
16 manufacturing sites on 3 continents
Philosophy
MAC combines the resources of our materials, processing, and application engineering to offer effective solutions to solve our customers needs.
CeramicsAlumina’s – 96%, 99.5%, 99.9%, Vitox biocompatible aluminaAluminum Nitride – 98.5%Zirconia Zirconia toughened aluminaSilicon NitrideCVD Silicon CarbideCVD PBNCVD DiamondMacor
Glass materials (Preforms and Alumino Silicates)
Glass Preforms allow hermetic seals between ceramic and metal parts.
Glass Preforms – wide range of thermal expansion coefficients available
Hybralox Glass – Alumina loaded glass for stronger sealing
Alumino Silicates are high glass content materials used for low thermal expansion, high thermal shock resistance.
Steatite Lava Cerasil
Ceramic assembliesCeramic to metal assemblies
Medical grade feedthrus
High power feedthrus
Coatings available
Diffusion bonding – ceramic to ceramic
Cofiring – Platinum into alumina
Frit bonding – High glass content intermediary layer.
Brazing – Various alloys and ABA’s
Glue - Various epoxy’s
Mechanical - Threading or bolting
Ceramic assemblies - Bonding
Sectioned braze joint
Cross section of diffusion bonded ceramics
Braze alloys
High purity, low vapor pressure brazing alloys. Precious and non-precious.
Active braze alloys – Do not need an intermediary layer as it directly wets to ceramic.
Braze alloys are typically used to join ceramic to metal assemblies, form electrical paths, and create heaters.
Metal injection moldingStainless steel: (i.e. 17-4 PH SST, 316L SST, 304L SST, F-15)
Tungsten
Copper
Almost any metal that starts out as a powder can be injection molded
Parylene coating available
Coatings (for ceramics)Metallizing (moly+nickel, sputter, ABA) – thick or thin film process. Developed for hermetic braze seals, it can also be used to conduct electrical current.
Anti wetting surface treatment – durable as the base material.
Frit or Preforms – high glass content
DLC - diamond like coatings (amorphous carbon) – Contact angles to 110 degrees. Solid lubricant, protective hard coating.
Charge dissipative ceramic – fired into the ceramic surface
Parylene (Insul-Cote P) – vacuum deposited conformal pin-hole free coating. Biocompatible, electrically insulative and low coefficient of friction. Works on many materials.
Coatings (for MIM parts)Parylene – bulk parts or wire can receive this. Replaces epoxy in many applications. Non porous, conformal, autoclave, biocompatible, and low in friction.
DLC – (diamond like coating) Ion beam or RF plasma process. Transparent, hard, elastic, low friction, chemically inert, electrically insulative.
Materials Processing (examples)
Ceramics
•Drypressing
•Isopressing
•CIM
•Slip cast
•Extrusion
•CVD
•Grinding
Alloys
•Draw
•Stamp
•Roll
•Melt-spun
Coatings
•CVD
•Spray
•AW surface treat
Metallizing
•Thick film
•Thin film
Brazing
•Vacuum
•Atmosphere
Alumina ceramic formingIsopressing – High purities. Suitable for volumes of 1 to thousands. Quick turn.
Drypressing – High purities. Suitable for higher volumes in the thousands. Tooling required.
Injection molding – High purities. High volumes. Very complex shapes. Tooling required.
Slip casting – Low purities. Suitable for volumes in 100’s. Tooling required. Inexpensive big parts.
Extrusion – High purities. Low cost. Tube shapes only. Multiple bores possible. Only length can be tight tolerance.
Tape casting – High purities. Low cost. Any volume.
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