Research progress of BN interphase and its multilayers in SiC<sub>f</sub>/SiC composites

SiC<sub>f</sub>/SiC composites are consisted of SiC fibers, SiC matrix and interphase. The interphase can transfer stresses from matrix to SiC fibers and deflects microcracks, at the same time, it protects SiC fibers from chemical erosion during the preparation and use of materials, whic...

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Bibliographic Details
Published in:Journal of Aeronautical Materials
Main Authors: LYU Xiaoxu, QI Zhe, ZHAO Wenqing, JIANG Zhuyu, YANG Jinhua, ZHOU Yiran, LIU Hu, JIAO Jian
Format: Article
Language:Chinese
Published: Journal of Aeronautical Materials 2019-10-01
Subjects:
sic<sub>f</sub>/sic composites
chemical vapor infiltration
bn interphase
multilayer
Online Access:http://jam.biam.ac.cn/CN/Y2019/V39/I5/13
Description
Summary:SiC<sub>f</sub>/SiC composites are consisted of SiC fibers, SiC matrix and interphase. The interphase can transfer stresses from matrix to SiC fibers and deflects microcracks, at the same time, it protects SiC fibers from chemical erosion during the preparation and use of materials, which plays a very important role in regulating the properties of SiC<sub>f</sub>/SiC composites. In this paper, the effects of precursor gas ratio, carrier gas, deposition pressure, temperature on the deposition rate and microstructure of interphase during the chemical vapor infiltration (CVI) process are summarized. It will be the key and difficult point in the research of SiC<sub>f</sub>/SiC composite interphase to select appropriate process conditions and prepare BN and its composite multilayer with ideal structure.
ISSN:1005-5053
1005-5053

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