Black silicon carbide is produced from quartz sand and petroleum coke as main raw materials and processed in a high temperature electric resistant type furnace.
Black silicon carbide has a high purity of SiC over 98%, very low impurity (Fe, C , alumina and silica ), and it has a high hardness (mohs9.2) between corundum and diamond and low toughness, which makes it an ideal material for high quality abrasive tools.
Black silicon carbide has sharp knife-edge and friable character as well as good thermal
conductivity and quick heat dissipation, and it also has better self-sharpening characteristic.
Features above are excellent traits which can be used in many applicable situations.
Physical Index of Black Silicon Carbide
Color Black
Basic Mineral α-SiC
True Density 3.2g/cm3
Bulk Density 1.45-1.56g/cm3
Mohs Hardness 9.2
Microhardness HV3100-3280
Chemical composition:
Grit Size SiC F.C Fe2O3
F12-90 >99.0%
