What are the properties and application characteristics of silicon nitride ceramics

       Silicon nitride (Si3N4) contains N39.9%, Si60.1%, and its melting point is 1889°C. Silicon nitride is a modern well-known high-strength and high-temperature ceramic material. Monolithic silicon nitride ceramics are manufactured by high temperature and high pressure or hot pressing sintering methods. Since silicon nitride may undergo high temperature volatilization of Si components in the high temperature flame flow of plasma spraying, it is mostly used as a composite powder component to prepare high temperature thermal wear resistance and high temperature thermal wear resistance. Corrosive coating.



      Silicon nitride has high hardness, small friction coefficient, self-lubricating properties, excellent friction and wear resistance, and good fatigue resistance. Can be used as thermal wear, erosion, corrosion wear resistant coatings. Such as engine piston heat pump components, gas turbine components, etc.

      Spraying processes such as gas-stabilized plasma spraying, supersonic flame spraying and explosive spraying can be used.