Property of aluminum nitride Powder
Aluminum nitride has the chemical formula AlN. It belongs to the hexagonal crystal system and has a wurtzite structure.
Aluminum nitride has high strength and stability at room temperatures. The strength of the powder decreases gradually with increasing temperature. Aluminum nitride is a thermal shock resistant material with good thermal conductivity. AlN Powder is resistant to molten metallic corrosion, making it an ideal material for crucibles used in the casting of pure iron or aluminum. 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, as a chip carrier that has high thermal conductivity for military purposes, and also as a chip carrier.
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 can only replace severely worn parts.
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 be utilized as infrared Windows. Aluminum nitride can be used as a substrate for ultra-large-scale integrated electronic circuits, high-frequency piezoelectric components and other products.
5. Aluminum nitride (AlN) powder is heat resistant, resistant to corrosion from molten metals, stable in acid but easily corroded by alkaline solutions. 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 beryllium-oxide ceramics that are toxic and have excellent metallization properties. They are also widely used in electronics.