Black silicon carbide

Black silicon carbide is quartz (SIO2) and anthracite coal or petroleum coke (C) as the basic raw material under the condition of over 1800 degrees centigrade high temperature generated by the non-metallic minerals, it has high hardness, small expansion coefficient, crisp, good thermal conductivity, is widely used in abrasives and grinding of electronic products, refractory materials, special ceramics, ceramic foam, coating modified plastic additives, auto parts, military aviation, steelmaking deoxidizer, etc.