Oxidation behavior of C/SiC composites with a SiC/Mo–Si multilayer coating

✍ Scribed by Zhi-qiao Yan; Xiang Xiong; Peng Xiao; Feng Chen; Gen-shan Liu; Bo-yun Huang

• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 39 KB
• Volume: 48
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/j.carbon.2010.03.054

✦ Synopsis

A SiC/Mo-Si multilayer coating was prepared on the surface of C/SiC composites by chemical vapor deposition (CVD) combined with slurry painting. The coating was composed of a dense CVD SiC coating alternating with a porous Mo-Si layer. From inside to outisde the coating consisted of CVD SiC, Mo-Si, CVD SiC, Mo-Si and CVD SiC. The coating remained intact and no obvious failure such as destruction or spalling was found during oxidation at 1400 °C and thermal shock between 1400 °C and room temperature. The mass loss and mass loss rate of the coated sample