Boron Nitride CAS 10043-11-5

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Boron Nitride Powder Usage and Synthesis:

Boron nitride is a crystal composed of nitrogen and boron atoms. It has a chemical composition of 43.6% boron and 56.4% nitrogen and has four different variants: Hexagonal Boron Nitride (HBN) , rhombic boron nitride (RBN), cubic boron nitride (CBN), and fibrous zinc ore boron nitride (WBN). Its cubic crystalline variants are considered to be the hardest known substances. There are also amorphous amorphous variants. Its Vickers hardness reaches 108 GPa, while that of synthetic diamonds is 100 GPa. It is resistant to chemical attack. It is not attacked by inorganic acids or water. In Boron-carbon bonds are broken in hot concentrated alkalis. Slightly soluble in hot acids, insoluble in cold water.

Pharmacokinetics of Boron Nitride Powder:

The coefficient of expansion of hexagonal boron nitride is equivalent to that of quartz, but the thermal conductivity is ten times higher than that of quartz. It also has good lubricity at high temperatures and is an excellent high temperature solid lubricant. It is chemically stable and chemically inert to almost all molten metals. Cubic boron nitride is a super hard material second only to diamond in hardness. Material, 1957 by the United States R.H. Weintoff first developed successfully, it not only has many excellent characteristics of diamond, but also has a higher thermal stability and to the iron group of metals It not only has many excellent properties of diamond, but also has higher thermal stability and chemical stability to iron group metals. Hexagonal boron nitride is insoluble in cold water, hydrolysis very slowly when boiled and produces a small amount of boric acid and ammonia, does not react with weak acids and strong bases at room temperature. It is slightly soluble in hot acid, and can only be decomposed by molten sodium hydroxide and potassium hydroxide. It has considerable corrosion resistance to various inorganic acids, bases, salt solutions and organic solvents.

Clinical Application of Boron Nitride Powder:

Boron nitride has many excellent properties and is widely used as insulator for high voltage high frequency electricity and plasma arc, coating for automatic welding high temperature resistant frame, material for high frequency induction furnace, solid phase dopant for semiconductor, structural material for atomic reactor, packaging material to prevent neutron radiation, transfer window for radar, medium for radar antenna and rocket engine. solid phase dopant for semiconductors, structural material for atomic reactors, packaging material to prevent neutron radiation, transmission window for radar, medium for radar antenna and component of rocket engines. components of rocket engines, etc. It can be used as super hard material, suitable for geological exploration, oil drilling bits and high-speed cutting tools. It can also be used as metal processing grinding material, with the advantages of low processing surface Low temperature, low surface defects of parts. Boron nitride can also be used as an additive for various materials. The boron nitride fiber made by boron nitride processing is a medium modulus high functional fiber. It is a kind of inorganic synthetic engineering material, which can be widely used in chemical industry, textile industry, aerospace technology and other sophisticated industrial sectors.

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