Oxidation behavior and high-temperature flexural property of CVD-SiC-coated PIP-C/SiC composites. Issue 14 (1st October 2018)

• Record Type: Journal Article
• Authors: Jin, Wen; Si, Zhou; Lu, Yi; Bei-zhi, Sun; Yi, Wang; Guang-de, Li; Zhong-fang, Xing; Jie, Cao; Heng-ping, He; Yang, Xiang
• Is Part Of: Ceramics international. Volume 44:Issue 14(2018)
• Page Start: 16583
• Page End: 16588
• Publication Date: 2018-10-01
• Subjects: C/SiC -- PIP -- CVD -- Oxidation -- High temperature; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2018.06.082
• Languages: English
• ISSNs: 0272-8842

Abstract

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 1700 °C and the flexural property at 1200 °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 330.7 MPa, and that of coated ones reduced from 655.3 to 531.2 MPa.