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Property of aluminum nitride Powder
Aluminum nitride has the chemical formula AlN. It belongs to a hexagonal crystal system with wurtzite structure.
Aluminum nitride has a stable temperature up to 2200. It is strong at room temperatures and loses strength slowly with increasing temperature. Aluminum nitride is a thermal shock resistant material with good thermal conductivity. AlN Powder is a good crucible material because it has a high resistance to molten corrosion. Aluminum nitride has good dielectric and electrical properties.
Use of aluminum nitride:
Aluminum nitride has many uses in optoelectronics. It is used as a dielectric in optical storage interfaces and electronic substrates, and also as a chip carrier that is thermally conductive and for military purposes.
1. Aluminum nitride powder AlN has high purity and activity. It is used as the main raw material to produce high thermal conductivity aluminium nitride ceramic substrat.
2. Aluminum nitride is a ceramic substrate with high thermal conductivity. It has a low expansion coefficient and high strength. It is a suitable large-scale heat dissipation material and packaging substrate for integrated circuits.
Aluminum nitride has a higher hardness than traditional alumina. However, due to the high price, it is only suitable for parts that are severely worn.
4. AlN ceramics have excellent heat resistance, melt erosion resistance, thermal shock resistance, and can be used in the manufacture of GaAs crystals, Al evaporating plates, magnetic fluid generation devices, high-temperature turbo-corrosion-resistant parts, and their optical properties can also be utilized as infrared Windows. Aluminum nitride can be fabricated into ultra-large-scale integrated-circuit substrates, high-frequency piezoelectric components and other products.
5. Aluminum nitride (AlN) powder is resistant to heat and corrosion, even when molten metal is present. It’s stable in acidic solutions, but corrodes easily in alkaline ones. AlN’s new surface will react with humid air and form a thin oxide layer. It can be used to melt aluminum, silver, copper, lead, and other metals using this property. AlN ceramics can be used to replace toxic ceramics made of beryllium dioxide and have excellent metallization properties. They are also widely used in electronics.