Aluminum Nitride Powder Properties And Applications

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Aluminum nitride It is a covalent compound with the chemical formula AIN. It is also an atomic-crystal. Aluminum nitride has a hexagonal system and wurtzite structure. It’s non-toxic.

Aluminum Nitride Powder Properties

Aluminum nitride, or AlN, has many characteristics, including high strength, volume resistivity, insulation withstand voltage and thermal expansion coefficient. Recently, it is used not just as a reinforcing phase or sintering agent for structural ceramics. In ceramic electronic substrates, and packaging materials its performance is superior to that of alumina.
Aluminum nitride, with its high thermal conductivity and low thermal expansion coefficient is an excellent thermal shock material. Aluminum nitride resists corrosion when molten and is a good crucible material to melt and cast pure iron, aluminum and aluminum alloys. Aluminum nitride also has excellent dielectric properties. It is also promising for electrical components.


Aluminum Nitride powder Applications

1. Aluminum nitride has a high activity, high purity and small particle size. It is the main raw materials for high thermal conductivity Aluminum Nitride Ceramic Substrates.

2. Aluminum nitride is a ceramic substrate with high thermal conductivity. It has low expansion coefficients, high strength and resistance to corrosion. It is a suitable large-scale heat dissipation material and packaging substrate for integrated circuits.

The hardness of aluminum nitride is much higher than traditional alumina.

4. AIN ceramics have the ability to resist heat, melt erosion, thermal shock, and can be used to make GaAs crystal crucibles. They can also be used for high-temperature turbine corrosion resistant parts, as well as magnetic fluid generation devices.

5. Aluminum nitride can be used as a substrate for super-large-scale integrated electronic circuits, high-frequency components, etc.

6. Aluminum nitride resists heat, is resistant against corrosion caused by molten steel, is stable with acid but corrodes easily in alkaline solution. The new surface will react with humid air and form a very fine oxide film. AIN ceramics can be used to replace toxic ceramics made of beryllium and they are commonly used in electronics.

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