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Application Of Hexagonal Boron Nitride Ceramics

wallpapers Environment 2020-11-23
Hexagonal boron nitride was born in Bellman's laboratory in the 1840s. Its structure and performance are very similar to graphite. Because of its white color, it is called "white graphite". As a new type of composite ceramic matrix material, hexagonal boron nitride ceramics not only have the advantages of low density, high melting point, low hardness, thermal shock resistance and good machining performance, but also high temperature resistance, low thermal expansion coefficient, and thermal conductivity. High, low dielectric constant, reliable electrical insulation and many other excellent properties, it is a high-temperature structural ceramic material with great development potential.
H-BN ceramics can be said to be a new industrial material developed with the development of aviation and electronics industry, and has broad application prospects in the fields of metallurgy, chemical industry, electronics and new energy.

With the better high temperature resistance and electrical insulation of boron nitride products, it can be used as an electrical insulation material at high temperatures and has excellent thermal shock resistance. Using its high thermal conductivity and penetration of microwave radiation, it can be used as a radar transmission window in the electronics industry. Utilizing h-BN products with high melting point, low thermal expansion coefficient and stable performance to almost all molten metals, they can be used as high-temperature metal smelting crucibles, heat-resistant materials, heat sinks and thermal conductive materials. Utilizing the excellent thermal stability of h-BN ceramics, it can be used under repeated rapid cooling and heating conditions from 1500°C to room temperature.

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