The Property And Application of Boron Carbide Powder

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Boron carbide The organic material B4C is also called black diamond. This substance, which usually comes in the form of gray-black nanopowder, has a formula molecular. Boron carbide ranks third in the world’s hardest materials, alongside diamond and cubic boron oxide.

Boron Carbide: Its Properties

Boron carbide has high chemical potential. It is also resistant to wear and has semiconductor conductivity. It is one of most stable substances for acid, and stable in any concentrated or diluted acid or alkali solutions. Boron carbide remains stable in air below 800degC.
The hardness is lower for boron carbide than it is for industrial diamonds, but higher than the silicon carbide. Boron carbide is less fragile than most pottery. Boron carbide resists corrosion by hot hydrogenfluoride, nitric and other acids. It is soluble with molten alkali but insoluble with water and acid.

Boron Carbide: Its Application

Control nuclear fission
Boron carbide absorbs a large amount of neutrons while forming no radioactive isotopes. This makes it an ideal neutron absorption material in nuclear power stations. The neutron absorption material is also used to control nuclear fission. In the nuclear reactor sector, the main form of Boron carbide used is a controllable bar. But sometimes it can also be made as a powder due to the increased surface area.

During Chernobyl’s nuclear accident, Russia dropped sand and nearly 2,000 tonnes of boron-carbide, which stopped the chain reactions in the reactor.

Abrasive material
The boron carbide is a material that has been in use as an abrasive for a very long time. Due to its high melting point it is difficult for it to be cast in artificial products. However it can be processed by melting the powder at a high temperature into simple shapes. It is used for grinding and polishing of hard materials, such as gemstones and cemented-carbide.

Coating paint
Boron carbide may also be used to coat warships or helicopters. It is light weight and resistant to armor-piercing bullets.

It is used in the manufacture of gun nozzles for the munitions sector. Boron carbide has a high wear resistance and is resistant to acids and alkalis. It can also withstand high pressures and temperatures.

Due to its high hardness and wear resistance, the boron-carbide sandblasting needle will gradually replace sandblasting tools made of silicon carbide/tungsten and cemented carbide/tungsten and silicon nitride.

Boron carbide also is used in the production of metal borides as well as smelting sodium-boron, boron alloys and special welding.

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