Boron nitride is a crystal made of nitrogen and boron atoms. It is chemically composed of 43.6% boron and 56.4% nitrogen. Boron nitride has four different variants: hexagonal boron nitride (HBN), rhombic boron nitride (RBN), cubic boron nitride (CBN) and fibrous zincite boron nitride (WBN). Boron nitride was introduced more than 100 years ago, and its earliest application was as a high-temperature lubricant, hexagonal boron nitride, which not only has a structure but also properties very similar to graphite and is so white that it is commonly known as white graphite. Boron nitride (BN) ceramics were discovered as a compound as early as 1842. A lot of research work was carried out abroad on BN materials from the Second World War until 1955 when the BN hot pressing method was solved.
Properties of Boron Nitride Powder
Boron nitride is resistant to chemical attack and is not attacked by inorganic acids or water. It breaks the boron-nitrogen bond in hot concentrated alkali. Boron nitride starts to oxidize in the air above 1200°C and decomposes at about 2700°C in a vacuum. BN powder is slightly soluble in hot acids and insoluble in cold water. Most properties of boron nitride are superior to those of carbon materials. For hexagonal boron nitride, has a very low coefficient of friction, very good high-temperature stability, very good thermal shock resistance, very high strength, very high thermal conductivity, low coefficient of expansion, very high resistivity, corrosion resistance, and can transmit microwave or infrared light.
Applications of Boron Nitride Powder
Boron nitride is used as a release agent for metal forming and as a lubricant for metal drawing. 3. Boron nitride can be used in high-temperature states for special electrolytic and resistive materials. Boron nitride is used as a high-temperature solid lubricant, extrusion anti-wear additive, additive for the production of ceramic composites, refractory material, and antioxidant additive, especially against corrosion of molten metals, thermal enhancement additive, high-temperature resistant insulating material. Boron nitride is used as a heat-sealing desiccant in transistors and as an additive in polymers such as plastic resins. Pressed into various shapes of boron nitride products, which are used as high temperature, high pressure, insulation and heat dissipation components. Boron nitride can be used as a heat-shielding material in aerospace. With the involvement of a catalyst, boron nitride can be transformed by high-temperature and high-pressure treatment into hard, diamond-like cubic boron nitride. Boron nitride is used as a structural material for atomic reactors. Boron nitride is used as a nozzle for aircraft and rocket engines. Boron nitride is an insulator for high voltage and high-frequency electricity and plasma arcs.
Boron Nitride Powder Price
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Boron Nitride Powder Supplier
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted boron nitride powder manufacturer and h-BN powder supplier with over 12-year-experience. We ship our goods all over the world. If you are looking for high-quality boron nitride powder, please feel free to contact us and send an inquiry. ([email protected])
