Plastic and nonmetallic article shaping or treating: processes – Outside of mold sintering or vitrifying of shaped inorganic... – Producing fiber containing article or fiber
Patent
1995-05-22
1997-07-01
Theisen, Mary Lynn
Plastic and nonmetallic article shaping or treating: processes
Outside of mold sintering or vitrifying of shaped inorganic...
Producing fiber containing article or fiber
264332, 264641, C04B 35577
Patent
active
056435142
ABSTRACT:
The invention includes a process for producing a reaction bonded silicon carbide composite reinforced with coated silicon carbide fibers which is suitable for high temperature applications. The process includes the steps of coating SiC fibers with AlN, BN or TiB.sub.2 ; treating the coated fibers with a mixture of SiC powder, water and a surfactant; preparing a slurry comprising SiC powder and water; infiltrating the coated fibers with the slurry to form a cast; drying the cast to form a green body; and reaction bonding the green body to form a dense SiC fiber reinforced reaction bonded matrix composite.
The invention further includes a SiC fiber reinforced SiC composite comprising a reaction bonded SiC matrix, a SiC fiber reinforcement possessing thermal stability at high temperatures and an interface coating on the fibers having chemical and mechanical compatibility with the SiC matrix and with the SiC fibers.
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Chwastiak Stephen
Lau Sai-Kwing
McMurtry Carl H.
Srinivasan Gajawalli V.
DiMauro Thomas M.
The Carborundum Company
Theisen Mary Lynn
LandOfFree
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