Which boron-carbide properties are there?
Boron carbide powder
Also known as black diamond or organic matter, a crystalline substance that is usually gray-black in color and has a chemical composition of B4C. It is known to be one of three most difficult materials (the others being diamond and cubicboron nutride).
Boron carbide, a hard, black-shiny crystal is called. Boron carbide is harder than an industrial diamond but more hard than silicon carbide. Boron carbide ceramics tend to be less fragile than pottery.
Boron carbide powder, which is one of most stable acids, is stable in concentrated and dilute acid solutions as well as alkali water aqueous solutions. In an atmosphere below 800 degC, Boron carbide is practically inert. It is possible to lose the boron dioxide that forms from its oxidation at higher temperatures in the gas phase. This results in its instability, and then oxidation into carbon dioxide and/or boron trioxide.
How is boron caride used?
Boron carbide has low density, high strength and high temperatures stability. It also exhibits good chemical stability. Boron carbide powder can be used as a wear-resistant material, in ceramic reinforcing phase, and in lighter armors, neutron absorbers, and other applications. It is also easier to produce than diamond or cubic boron nutride, making it more widespread. You can use it to replace costly diamonds in certain areas.
Since long time, boron carbide is a common coarse abrasive. Although it has a high melting point it cannot be used to make artificial products. It can however be made into small shapes by heating the powder. Boron carbide is used in grinding, drilling, polishing, and drilling hard materials, such as gemstones and cemented caride.
Boron carbide can be used to coat warships, helicopters with ceramics. Boron carbide is lightweight and can resist armor-piercing projectiles. It forms an integral defense coating by hot pressing.
The boron-carbide nozzles offer wear resistance and high toughness. They will eventually replace cemented caride/tungsten steel, silicon carbide and silicon nitride.
Boron carbide is used to make metal borides as well as smelting sodium and boron alloys and special welding.
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