Ceramic to Metal Assemblies from Morgan Advanced Materials

Morgan Advanced Materials’ Technical Ceramics business is experienced in integrating ceramic and metal for engineering components. Their engineers design assemblies to exploit the unique properties of each material and incorporate them to create a component with a greater performance than one made from either material on its own.

Ceramic-to-metal brazed assemblies are made to provide good electrical insulation and high mechanical strength. Their brazed assemblies are hermetic and capable of maintaining ultra-high levels of vacuum and joint integrity even at elevated temperatures and in extreme environments.

Materials Used in Brazed Assemblies

  • Alumina materials –Deranox™ 970, ZTA, AL300, Sintox™ FF and Deranox™ 995, A950, synthetic rubies/sapphire, AL998
  • Higher performance ceramics – Sapphire, Yittria stabilized zirconia, Si3N4, CVD Diamond, CVD SiC, ZTA, and composite materials such as C-SiC

Conventional brazing materials (gold, silver, copper, precious metal eutectics) for metallized alumina or active braze alloys (ABA) from a biocompatibility requirement, to an ‘above super alloy melt temperature’.

  • Metals - Kovar, OFHC copper, mild steels, platinum, platinum iridium, Monel, stainless steels, niobium, nickel and titanium super alloys, tungsten
  • Glazes to facilitate cleaning or for contamination protection

Common Applications

  • Feedthroughs for active medical implants
  • Composite honeycomb panels
  • Implantable packages and feedthroughs
  • Electrosurgical instrumentation
  • Mass spectrometry
    • Gas lasers
    • Gas detectors
    • Nuclear detectors
    • Deep sea repeaters
    • Particle accelerators
    • Microscopes (TEM, SEM)
    • Optoelectronics and power tubes
    • Rechargeable batteries for energy storage
    • High voltage feedthrough for X-Ray equipment, scanners and imaging applications for medical
    • Sensors, satellite propulsion and engine management for aerospace

Application Examples

Ceramic components and brazed assemblies are progressively used in aero engines operating at elevated temperatures, where conventional materials are not suited. They can be used to help enhance engine efficiency and decrease gas emissions.

Morgan Advanced Materials has been designing and manufacturing high voltage feedthroughs for diagnostic equipment for more than four decades. These brazed assemblies are made using high purity Alumina and possess a high level of cleanliness.

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