Study on Mechanical Behavior of CVD-SiC Coated C/SiC Composites under Simulated Space Environments
Study on Mechanical Behavior of CVD-SiC Coated C/SiC Composites under Simulated Space Environments
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DOI：
10.1007/s10443-017-9653-1
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发表时间：
2018-10
影响因子：
2.3
通讯作者：
Xiang Yang;C. Feng;Wang Yi;Li Guang-de;Cao Jie
中科院分区：
文献类型：
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作者：
Xiang Yang;C. Feng;Wang Yi;Li Guang-de;Cao Jie
SiC coating was prepared on the surface of C/SiC composites by chemical vapor deposition (CVD) method, and then mechanical behavior of CVD-SiC coated C/SiC composites under cold and thermal cycling had been investigated. Specimens were thermally cycled between the temperatures of −100 °C and 100 °C for up to 200 cycles, respectively. The coating was characterized by XRD, SEM and EDS. The results showed that there were no significant changes in the flexural property. CVD-SiC coated C/SiC composites had good mechanical stability in above simulated space environments. While great changes occurred on both elements and structure of the coating, from homogeneous single-phase of SiC into the inner layer of SiC and the outer of C, which caused the change of the bending strength.
