Black silicon carbide are non-metallic mineral products.They are made by the materials of quartz sand (SiO2) and anthracite or petroleum coke (C) , under high temperature conditions at more than 1800 degrees Celsius generate in the resistance furnace.

It has high hardness, low coefficient of expansion, brittle, and good thermal conductivity,

which is widely used in abrasives, and add a grinding of electronic products, refractory materials,

special ceramics, ceramic foam, auto parts, military aviation, steelmaking deoxidation agent。

Key words:SiC, silicon carbide, SISIC, carborundum