Method for fabricating ceramic matrix composite

Details Method for fabricating ceramic matrix composite Method for fabricating ceramic matrix composite

C - Chemistry, Metallurgy

04

B

C04B 35/80 (2006.01) B32B 17/10 (2006.01) B32B 18/00 (2006.01) C04B 35/571 (2006.01) C23C 16/04 (2006.01) F02K 9/62 (2006.01)

Patent

CA 2378915

A method for fabricating a CMC (Ceramic Matrix Composite) article, comprising: performing a CVI (Chemical Vapor Infiltration) treatment (5) for forming a SiC matrix layer on the surface of a woven fabric; performing a machining process (6), after the CVI treatment (5), for machining the woven fabric; and performing a PIP (Polymer Impregnation and Pyrolysis) treatment (7), after the machining process (6), for impregnating an organic silicon polymer as a base material into voids in the matrix layer and pyrolyzing the organic silicon polymer. By this method, the throughput of CMC articles can be preferably increased. The throughput may be further increased by performing a slurry impregnation treatment (13) before or after the PIP treatment (7), in which slurried SiC is impregnated into the voids in the matrix layer.

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