Oxidation and ablation resistant properties of pack-siliconized Si-C protective coating for carbon/carbon composites

Uniformly SiC coating was established on carbon/carbon (C/C) composites using halide activated pack cementation (HAPC). The siliconizing temperature in HAPC process played an evident effect on the deposition efficiency and oxidation behavior of SiC coating. The SiC coating revealed a typical crystalline structure with limited porosity and combined well with the substrate. Oxidation tests showed that the coating can withstand the 25 h of...