Black Silicon Carbide (SiC) powder is an industrial material made from silicon carbide, usually produced by reacting quartz sand and coke at high temperatures in an electric arc furnace. Black Silicon Carbide, named for its black colour, is a common member of the Silicon Carbide family and has high hardness, good thermal conductivity and wear resistance.
black silicon carbide powder characteristics
1. High hardness: black silicon carbide has a Mohs hardness of about 9.2-9.3, second only to green silicon carbide and diamond, and can be used to grind and cut hard materials.
2. Good thermal conductivity: Black silicon carbide has good thermal conductivity and can maintain stable heat conduction at high temperatures.
3. High abrasion resistance: Black silicon carbide has excellent abrasion resistance and is suitable for use in processes that deal with high hardness materials.
4. High-temperature stability: Black silicon carbide has a melting point of approximately 2,700°C, enabling it to maintain its structure and properties in high-temperature environments.
5. Relatively high oxidation resistance: In high temperature environments, black silicon carbide has good oxidation resistance, making it suitable for use in certain applications under extreme conditions.
6. RELATIVELY LOWER PURITY: Compared to green silicon carbide, black silicon carbide is slightly less pure and contains more impurities, resulting in slightly less performance in some applications.
black silicon carbide powder application
1. Abrasives and Grinding Materials: Because of its high hardness, black silicon carbide is widely used to make grinding wheels, abrasives, cutting tools, polishing materials, etc. It is suitable for grinding and cutting metals, ceramics, stone and other hard materials.
2. Refractory materials: Black silicon carbide is used to make high temperature refractory materials, such as kiln linings, crucibles, refractory bricks, etc. It is widely used in metallurgy and ceramics industries because of its high melting point and high temperature resistance.
3. Metallurgical Deoxidiser: In the steelmaking industry, black silicon carbide can be used as a deoxidiser to help remove oxygen from steel and improve the quality of steel.
4. Industrial Wear Parts: The wear-resistant nature of black silicon carbide makes it an ideal material for use in the industrial sector for the manufacture of wear-resistant parts, mechanical seals and sandblasting nozzles.
5. Solar and photovoltaic industry: Black silicon carbide is used as a cutting abrasive in the cutting of polysilicon wafers and monocrystalline silicon wafers for the production of solar cells.
6. Thermal dissipation materials for electronic devices: Due to its good thermal conductivity, black silicon carbide is widely used in the thermal management of electronic devices, for example, as a thermal management material in heat dissipation substrates and semiconductor devices.
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