Black Silicon Carbide

Black silicon carbide is made from quartz sand, petroleum coke and high-quality silica as the main raw materials, and is smelted at high temperature in a resistance furnace. Its hardness is between corundum and diamond, its mechanical strength is higher than corundum, and it is brittle and sharp. Introduction to black silicon carbide Black silicon carbide is made by smelting quartz sand, petroleum coke (or coal coke), wood chips and other raw materials at high temperature in a resistance furnace. It is smelted at high temperature in a resistance furnace. It is a black opaque body with hexagonal crystals and a Mohs hardness of 9.15. Second only to diamond and boron carbide, it is brittle and sharp and has certain electrical conductivity. Black silicon carbide uses 1. Abrasives Mainly used for making grinding wheels, sandpaper, oil stones, grinding heads, grinding pastes, and surface grinding and polishing of monocrystalline silicon, polycrystalline silicon and various devices in photovoltaic products. 2. Functional ceramics It can not only reduce the capacity of kiln furniture, but also improve the quality of kiln products and shorten the cycle. It is an ideal indirect material for baking and sintering of ceramic glazes, high-temperature non-oxide ceramics and reaction-sintered ceramics. 3. Non-ferrous metals It has been applied in the steel industry and metallurgical mineral processing industry. 4. Advanced refractory materials It can be used as metallurgical deoxidizer and high temperature resistant material to make high temperature furnace components, supports, etc.