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What are boron carbid properties?
Boron carbide powder
Also known as black Diamond, this organic substance is a powder with the chemical formula B4C. It’s usually gray or black. It is among the three hardest substances known (the two others being diamond and cubic boron-nitride).
Boron carbide looks like a shiny black crystal. Boron carbide has a harder surface than industrial diamond but is softer than silicon carbide. Ceramics made of boron-carbide are more fragile than other ceramics.
Boron carbide powder has a high stability to acids and alkalis. Boron carbide in an atmosphere is essentially stable below 800degC. The boron oxidation that occurs at higher temperatures leads to the loss of boron oxide in gas phase. This causes its instability, and eventually oxidation into carbon dioxide and trioxide.
What are the uses of boron carbide?
Boron carbide is a powder with low density and high strength. It also has good chemical stability, a high temperature stability, and possesses favourable thermal stability. It’s used as a ceramic reinforcing phase, in materials that are resistant to wear, and in armor and reactor neutron absorbers. As boron carbide can be easily manufactured and has a low cost compared to diamond and cubic Boron Nitride, it is used more. It can be used in place of expensive diamonds and is often used for grinding, drilling, and grinding.
The boron carbide was used as an abrasive coarse material for many years. Due to its high melting point it is difficult for it to be cast in artificial products. However it can be transformed into simple shapes through smelting at high temperatures. Boron carbide powder can be used for grinding and drilling hard materials, such as gemstones and cemented carbide.
Boron carbide may also be used on warships or helicopters as a ceramic surface. It is lightweight with the ability to resist armor-piercing bullets.
Due to their wear resistance and hardness, boron nitride nozzles, silicon carbide and tungsten steel, as well other materials like alumina, zirconia, alumina nitride will be gradually replaced by boron nitride nozzles.
Boron carbide powder can also be used for the production of metal borides as well as boron alloys and welding.
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