C:C Joined to Molybdenum

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Powdered Metal Braze Preforms (WideGap) for
Joining of CC Refractory Composite Materials
WideGap Joint
CarbonCarbon
Materials Resources International North Wales, PA
INNOVATION The use of powder preform
compositions and methods for active WideGap
brazing of dissimilar materials, including
refractory composites, ceramics and
refractory metals. ACCOMPLISHMENTS ?
Successfully demonstrated the joining of CC to
molybdenum and other refractory metals. ?
Joined CC to CC and to refractory metals for
possible use in rocket engines or processing
furnaces. ? Demonstrated methodologies to use
economic powder preforms for joining across wide
gaps and for joining dissimilar materials
where the preform must accommodate CTE
mismatches. COMMERCIALIZATION ???Ceramic / metal
seals for aggressive chemical environments. ??
Ceramics to metal feed-throughs and seals. ? High
temperature ceramic tile and refractory thermal
protection systems. ??1998 sales of 50,000 are
expected with sales of 150,000 in 1999.
GOVERNMENT / SCIENCE APPLICATIONS ??Thruster
nozzles for space propulsion and satellite
positioning engines. ??Thermal protection systems
for aircraft and rocket engine components. ? High
temperature furnaces. ? Instrumentation
protection in hot gases. Contact Dr. Ronald W.
Smith, solution_at_mri-bluebell.com, tel (215)
616-0400 / FAX [phone]
CC Joined to Molybdenum