Research of properties of protective coating applied to the surface of reaction-sintered ceramic materials

The study describes the properties of protective coating deposited on surface reaction-sintered silicon carbide and molybdenum disilicide. technology increasing ability products basis reactive sintered disilicide, which operate in an oxidizing environment at high temperature a sharp change thermal regime, is investigated. obtained results showed that presence slip layer significantly increases stability silicoboride coating, thus blocking interaction hexaboride with environment, slowing down almost all diffusion processes transition diffusion. It has been established simultaneous use both slurry coatings enables maximum protection ceramic materials based disilicide against high-temperature gas corrosion. developed ensures resistance to repeated changes conditions, while cyclic destroy without applied coating. proposed can be recommended for operated temperatures.