Anti-oxidation properties of a SiSiOx/BN
B2O3
SiO2
Al2O3 dual-layer coating are investigated.
The SiSiOx/BN
B2O3
SiO2
Al2O3 coating has a good oxidation protection ability at intermediate temperature.
The SiSiOx layer can densify the pores in C/C composites efficiently and improve the oxidation resistance of the samples.
The oxidation kinetics model of the SiSiOx/BN
B2O3
SiO2
Al2O3 corresponds to two different oxidation mechanisms.