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The Properties And Applications of Aluminum Nitride Powder

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Update time : 2021-04-29 09:17:55
Aluminum nitride is a covalent bond compound, its chemical formula is AIN, which is an atomic crystal. Aluminum nitride belongs to diamond-like nitride, hexagonal crystal system, wurtzite crystal structure. Aluminum nitride powder is non-toxic, white or off-white.

Properties of aluminum nitride:

AlN can be stabilized up to 2200℃. Aluminum nitride has high strength at room temperature, and its strength decreases slowly with increasing temperature. Aluminum nitride has good thermal conductivity and small thermal expansion coefficient, making it a good thermal shock material.

Aluminum nitride has strong resistance to molten metal corrosion and is an ideal crucible material for melting and casting pure iron, aluminum or aluminum alloy. Aluminum nitride is also an electrical insulator with good dielectric properties.

Aluminum nitride is a catalyst for the transformation from hexagonal boron nitride to cubic boron nitride. It reacts slowly with water at room temperature. It can be synthesized from aluminum powder at 800-1000℃ in ammonia or nitrogen atmosphere. The product is white to grayish blue powder.


Applications of aluminum nitride:

Aluminum nitride is used in optoelectronic engineering, including as dielectric layer in optical storage interface and electronic substrate, as chip carrier with high thermal conductivity, and for military use.

Due to the characteristics of the piezoelectric effect of aluminum nitride, the epitaxial stretching of aluminum nitride crystals is also used in surface acoustic wave detectors. The detector will be placed on the silicon wafer. There are very few places where these thin films can be reliably manufactured.

The use of aluminum nitride ceramics has high room temperature and high temperature strength, small expansion coefficient, and good thermal conductivity. It can be used as a heat exchanger material for high-temperature structural parts.

Using aluminum nitride ceramics can withstand the corrosion of iron, aluminum and other metals and alloys, it can be used as a crucible and casting mold material for melting metals such as Al, Cu, Ag, and Pb.

Luoyang Trunnano Tech Co., Ltd (TRUNNANO) is a professional aluminum nitride powder with over 12 years experience in chemical products research and development. We accept payment via Credit Card, T/T, West Union and Paypal. Trunnano will ship the goods to customers overseas through FedEx, DHL, by air, or by sea.

If you are looking for high quality aluminum nitride powder, please feel free to contact us and send an inquiry.
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