Black Silicon Carbide
Black silicon carbide 220is made of quartz sand and petroleum coke as the main raw materials, and is smelted at high temperature in a resistance furnace. It is black crystal, brittle and sharp, and has certain thermal and electrical conductivity.
Black Silicon Carbide PowderTypical Physical Properties
Microscopic Shape
The microscopic shape of green vs black silicon carbideseries is hexagonal crystal, the Mohs hardness of silicon carbide is 9.3.
Micro-density Hardness
The micro-density hardness is 2940--3300 kg/mm2, and the Knoop hardness is 2670-2815 kg/mm2, which is higher than corundum and second only to diamond in abrasives, cubic boron nitride and boron carbide.
Density
The density of silicon carbide grains blackis generally considered to be 3.20-3.25 g/cm3.
Natural Bulk Density
The natural bulk density of silicon carbide abrasives is between 1.2--1.6 g/cm3, and the specific gravity is 3.20-3.25 g/cm3.
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