Black silicon carbide
Black silicon carbide is made of high-quality carbon silicon and petroleum coke, and is smelted in a resistance furnace at a high temperature of 2000 degrees or higher for 46 hours or more. Black silicon carbide has a hardness between corundum and diamond, mechanical strength is higher than corundum, and it is brittle and sharp. Widely used in abrasives, refractory materials, deoxidants, etc .; fine powder made of black silicon carbide is used in electronics, aerospace and other high-tech enterprises.
The chemical composition of black silicon carbide abrasives meets the requirements of the following table: