Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7886020 | Ceramics International | 2018 | 15 Pages |
Abstract
Polymer infiltration pyrolysis (PIP) was used to prepare carbon fiber-reinforced silicon carbide (C/SiC) composites, and chemical vapor deposition (CVD) was employed to fabricate SiC coating. The oxidation behavior at 1700â¯Â°C and the flexural property at 1200â¯Â°C were tested. SiC coating exerted remarkable oxidation effects on PIP-C/SiC composites. In the absence of coating, PIP-C/SiC composites lost 29.2% of its mass, with merely 6.74% of the original flexural strength retained. In contrast, CVD-SiC coated PIP-C/SiC composites had the mass loss of 10.2% and the flexural strength retention ratio of 23.4%. In high-temperature tests, SiC coating played an important role in the flexural strength of PIP-C/SiC composites. The flexural strength of uncoated composites became 330.7â¯MPa, and that of coated ones reduced from 655.3 to 531.2â¯MPa.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Wen Jin, Zhou Si, Yi Lu, Sun Bei-zhi, Wang Yi, Li Guang-de, Xing Zhong-fang, Cao Jie, He Heng-ping, Xiang Yang,