Black silicon carbide
Black silicon carbide is made through pyrolytic smelting of quartz sand and petroleum coke (or tar) in resistance furnace. It has stable chemical properties, high conductivity coefficient, low coefficient of thermal expansion and excellent wear-resistance, and is suitable for refractory and grinding applications.
Development, production and sale of a variety of flexible wear resistant materials (e.g. black corundum, aslo known as black fused alumina).