CHEN Zhiyong 1, LIU Jianshou 1, XU Yingqiang 2, ZHANG Dongsheng 3, YAO Yongyu 1,
LI Miaoling 1, LI Bin 1, ZHANG Guangguang 1
(1. School of Mechanical Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, Henan, China; 2. School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, Shaanxi, China; 3. Henan Van-Research Institute of Composite Co., Ltd., Zhengzhou 450001, Henan, China)
Abstract: Carbon fiber reinforced silicon carbide (C/SiC) ceramic matrix composite not only has excellent high temperature resistance, high specific strength and modulus, good corrosion resistance, wear resistance and low density, but also has good high temperature mechanical properties. At present, it has been successfully used for the third generation of aero engines, ramjet engines, the thermal structure of solid and liquid engine, as well as spacecraft heat shield and so on. Interphase is an extremely critical microstructure of carbon fiber reinforced silicon carbide ceramic matrix composite. It can be regarded as a strong "bridge", not only to connect the reinforcement and the matrix, but also to transfer the stress between them. It also plays a very critical role in maintaining the mechanical properties of C/SiC composite. This paper mainly discussed the research status of interface phase in C/SiC ceramic matrix composites in terms of their functions, types, preparation methods and influence on the mechanical properties of the composites.
Key words: C/SiC; ceramic matrix composite; interphase; mechanical propertie