Application of aluminum nitride ceramic materials

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What is aluminum Nitride?


Aluminum nitride

This atomic crystal is a diamond-like nitride. It belongs to the hexagonal crystal structure and wurtzite-type crystal structure. Aluminium nitride has a high thermal shock value.

The miniaturization and advancement of integrated circuits, electronic systems and products are moving towards higher integration density and greater functionality. Electronic parts have increasingly stringent requirements regarding the substrate that they are attached to. The breakthrough of high thermal conductivity in circuit integration and miniaturization has made it possible to use the substrates from alumina ceramics. Aluminium nitride is gradually becoming the preferred choice in packaging materials due to its excellent chemical and physical properties.

Attenuator material for microwaves made of aluminum nitride

Microwave attenuation has been applied to many areas of everyday life. This includes human safety protection, radar detection, waveguide absorption components, as well as military applications. It is a physical method that converts microwave energy into heat energy. The material also exchanges the heat energy with the environment. These techniques are increasingly being used to make high-power microwave vacuum devices.

AlN exhibits a very low dielectric loss. AlN is suitable for use as a microwave absorber material. To make Al N-based microwave ceramics, it’s often combined with metals or ceramics of good electrical conductivity. The research currently involves carbon nanotubes (TiB2, TiC), and metals like W, Mo, and Cu as conductive additives.

Aluminium nitride is a heat-resistant material

Aluminum nitride does not wet with aluminum, calcium and other metals. It can also be used to make casting molds, crucibles and protective tubes. An aluminum nitride-ceramics can be used to make molten metal in an immersion thermocouple tube. You can use it continuously at 8001000 for over 3000 hours without it sticking to any molten metal. It will also not corrode because it doesn’t stick to any molten metal. destroy. Because aluminum nitride products are strong to molten sal gallium Arsenide and other substances, the crucible has been replaced with glass for the production of gallium-arsenide semiconductors. This can eliminate all silicon pollution and produce high purity gallium arsenide.

The strength of aluminum nitride ceramics is very high at room temperature, and they are resistant to temperature fluctuations. They have high thermal conductivity and very low thermal expansion coefficients. They are a good heat-resistant material as well as heat exchange materials. This material is expected to be used in gas turbine heat exchangers as a heat transfer material. Materials that are heat-resistant and exchange heat

AlN ceramic materials offer broad applications prospects and wide potential markets in many industries, including electronics, electric power and locomotives.

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