High Temperature Oxidation of Boride Covered C/C Composite

摘要

The high temperature oxidation resistance of boride covered C/C composites was investigated in order to determine the suitability of this composite for high temperature engineering applications. The aim of this study was to give the oxidation resistance performance to the surface of C/C composite covered with SiB_6 powder. It was dispersed to a triethyleneglycol in order to coat this samples using the dipping process. The C/C composite samples were obtained with additional mass equal to about SiB_6 3 mass percent of the total sample mass, and surface of its samples was coated with SiB_6 using its process. The high temperature oxidation resistance of C/C composite was drastically improved by covered boride films.