The Properties And Application of Aluminum nitride


Jul 29, 2023

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What is Aluminium nitride?
Aluminum nitride (AIN) is a covalent-bond compound. It is an atomic-crystal, belongs to the diamond nitride system. AlN can stabilize up to 2200. The room temperature strength of AlN is very high. It decreases gradually with increasing temperature. It is good for thermal shocks due to its good thermal conductivity. It has a high resistance to corrosion in molten iron and aluminum and is a good crucible material when melting and casting these metals. Aluminum nitride also has excellent dielectric properties. It is also promising for use as an electrical component. The aluminum nitride layer on the gallium arsenide surface can protect it against ion implantation during annealing. Aluminum nitride also acts as a catalyst for the transformation of hexagonal boron to cubic boron. It is a slow reactant with water. The product can be synthesized by combining aluminum powder with ammonia and nitrogen at 8001000. The product is a white to grayish-blue powder. If the Al2O3 system is used at 16001750 to synthesize the powder, it will be off-white.
Aluminum nitride application:

A surface acoustic-wave detector also uses epitaxial stretching due to the piezoelectric effects of aluminum Nitride. The detector will then be mounted on a silicon-based wafer. The thin film can only be manufactured reliably in very few places.

Aluminium nitride is a ceramic material with a low expansion coefficient and good thermal conductivity. It can be used as a heat exchanger for high-temperature structural parts. It can also be used to make heat exchangers for structural components that are exposed to high temperatures.

Using aluminum-nitride materials can resist the corrosion of metals, alloys, and iron, such as aluminum and iron. It can also be used to melt metals, such as Al., Cu., Ag., and Pb.

Aluminum Nitride is widely used as a semiconductor electronic package due to its excellent properties in terms of electrical, mechanical and thermal properties.

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