The Anti-Oxidation Coatings of Carbon/Carbon Composites

Abstract:

C/C composites have excellent properties, but it will be rapidly oxidized when temperature is above 500 °C, which limits its applications in high temperature environment. In order to improve Anti-oxidation, using CVD method, a SiC coating is prepared on the surface of C/C composites. We have studied the microstructure of the SiC coating, oxidation resistance and high temperature mechanical properties. The results show that SiC coating has excellent oxidation resistance. When coated sample is oxidized at 1500 °C after 50 hours, its oxidation weight loss rate is only 1.45%, and coated samples can still maintain high mechanical properties at 1200 °C.

• Periodical: Advanced Materials Research (Volume 1058)
• Pages: 253-256
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1058.253
• Online since: November 2014
• Authors: Han Li*, Hong Zhao Xu, Xue Ye Sui, Chang Ling Zhou, Chong Hai Wang, Rui Xiang Liu, Yan Yan Wang
• Keywords: Anti-Oxidation, C/C Composite, SiC Coating

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