Green, crystal
structure, high hardness and strong cutting ability, stable
chemical characteristics, good thermal conductivity. Microcosmic
shape is a hexagonal crystal, Mohs hardness is 9.2., Vickers
hardness is ********0 kg/mm, microhardness is ********0kg/mm3.
Among abrasives, silicon carbide’s hardness is higher than
corundum, and ranked below diamond, CBN and boron carbide. Density
generally viewed is 3.*0g/ mm3 , density of heap is 1.**1.6g/ mm3 ,
specific gravity is 3.*0～3.*5. Raw materiasl are petroleum
coke and quality silicon sand, appended with salt, then smelted in
electric arc furnace. Mechanical strength is higher than
corundum. Main applications: solar and
semiconductor wafer wire sawing; crystal and ferrite polishing;
ceramic and special steel precision polishing; bonded and coated
abrasive tools; cutting and polishing; non-ferrous metal lapping
such as glass, stone, agate and high-grade jewelry; high-grade
refractory materials , engineering ceramic, heating elements and
thermal elements.
