Ceramic-based composite member and its manufacturing method

Details Ceramic-based composite member and its manufacturing method Ceramic-based composite member and its manufacturing method

C - Chemistry, Metallurgy

04

B

117/110, 117/85

C04B 35/84 (2006.01)

Patent

CA 2276659

There is disclosed a hybrid treatment into which CVI treatment and PIP treatment are combined. A dense matrix is formed around a ceramic fiber by the CVI treatment, and a gap in the matrix is infiltrated/filled well with the matrix by the PIP treatment, so that hermetic properties are enhanced. Moreover, when a volume ratio of the matrix by the CVI treatment in the total matrix is set to about 5% or more, about 80% or less, fine cracks are present in the matrix by the PIP treatment, so that a binding force of the ceramic fiber is weakened, and Young's modulus can be reduced. As a result, a thermal stress is alleviated and a resistance to thermal shock is enhanced.

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