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What are the boron carbide properties?Boron carbide powder , also known as black diamond, is an organic substance with a chemical formula of B4C, usually gray-black powder. It is one of the three hardest materials known (the other two are diamond and cubic boron nitride).
Boron carbide is a hard black shiny crystal. Boron carbide hardness is lower than industrial diamond, but higher than silicon carbide. Compared with other pottery, boron carbide ceramics are less fragile.
Boron carbide powder is one of the most stable substances to acid and is stable in all concentrated or dilute acid or alkali aqueous solutions. Boron carbide powder is basically stable below 800degC in an air environment. The boron oxide formed by its oxidation at a higher temperature is lost in the gas phase, leading to its instability and oxidation to form carbon dioxide and boron trioxide.
What are the boron carbide uses?Boron carbide powder has the characteristics of low density, high strength, high temperature stability and good chemical stability. It is used in wear-resistant materials, ceramic reinforcing phases, especially in lightweight armor, reactor neutron absorbers, etc. In addition, compared with diamond and cubic boron nitride, boron carbide is easy to manufacture and low in cost, so it is more widely used. It can replace expensive diamond in some places and is commonly used in grinding, grinding, and drilling.
Because boron carbide has been used as a coarse abrasive material long ago. Because of its high melting point, it is not easy to be cast into artificial products, but it can be processed into simple shapes by smelting the powder at high temperature. Boron carbide powder is used for grinding, grinding, drilling and polishing hard materials such as cemented carbide and gemstones.
Boron carbide can also be used as a ceramic coating for warships and helicopters. It is lightweight and has the ability to resist the penetration of armor-piercing projectiles through the hot-press coating to form an integral defense layer.
Because boron carbide nozzles have the characteristics of wear resistance and high hardness, boron carbide nozzles will gradually replace cemented carbide/tungsten steel and silicon carbide, silicon nitride, alumina, zirconia and other materials.
Boron carbide powder is also used in the manufacture of metal borides, smelting sodium boron, boron alloys, and special welding.
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