Black silicon carbide has a higher hardness than corundum abrasive. It has sharp knife-edge and friable character as well as good thermal conductivity and quick heat dissipation. The self-sharpening characteristics of black silicon carbide is better than corundum abrasive.
1. Black silicon carbide is the main raw materials of quartz sand , stone sand and petroleum coke.
2.It is made in the resistance furnace by high temperature.