The Applications of Aluminum Niitride
The latest forecast from consulting firm AlixPartners is that the chip shortage may cost the global auto industry $110 billion; it will reduce global auto production by 3.9 million this year. For the global chip shortage, AlixPartners analyzed that the main reason is that the chip production cycle is too long; at the same time, other uncontrollable risks from the industry chain have also affected the production rhythm. As the chip supply shortage continues to intensify, some automakers' factories have been forced to stop production for several days Even weeks, which companies such as Ford, GM, Stellantis, and others have been hit particularly hard. Even BMW, which was previously less affected, is beginning to show difficulties, with its Oxford plant in the UK shutting down for three days from April 30 and its Regensburg plant in Germany starting to reduce production shifts this week.
Chip supply shortages drive Aluminum Niitride.
What is Aluminum Nitride?
Aluminum nitride, covalent bond compound, chemical formula is AIN, is an atomic crystal, belongs to diamond-like nitride, hexagonal system, wurtzite crystal structure, non-toxic, white or off-white.
The main features of Aluminum Nitride
AlN is stable up to 2200°C. The strength at room temperature is high, and the strength decreases slowly with the increase of temperature. Good thermal conductivity, small thermal expansion coefficient, is a good thermal shock material. It has strong corrosion resistance to molten metal, and is an ideal crucible material for casting pure iron, aluminum or aluminum alloy. Aluminum nitride is also an electrical insulator with good dielectric properties and is also promising as an electrical component. The aluminum nitride coating on the gallium arsenide surface protects it from ion implantation during annealing. Aluminum nitride is also a catalyst for the conversion of hexagonal boron nitride to cubic boron nitride. It reacts slowly with water at room temperature. It can be synthesized by aluminum powder in ammonia or nitrogen atmosphere at 800~1000℃, and the product is white to gray-blue powder. Or by the reaction of Al2O3-C-N2 system at 1600~1750℃, the product is off-white powder. Or prepared by vapor-phase reaction of aluminum chloride and ammonia. The coating can be synthesized by the vapor-phase deposition method of AlCl3-NH3 system.
|Aluminum Nitride Properties
||White to pale yellow powder
||2517 °C (dec.)
||2.9 to 3.3 g/cm3
|Solubility in H2O
||10 to 12 10x Ω-m
||0.21 to 0.31
||80 to 200 W/m-K
||4.2 to 5.4 µm/m-K
Aluminum Nitride AlN powder CAS 24304-00-5
The use of Aluminum Niitride
It is reported that most of the research today is developing a semiconductor (gallium nitride or alloy aluminum gallium nitride) based light emitting diode that operates in ultraviolet light with a wavelength of 250 nanometers. In May 2006, it was reported that an inefficient diode can emit light with a wavelength of 210 nm . A single aluminum nitride crystal has an energy gap of 6.2 eV measured by the reflectance of vacuum ultraviolet rays. In theory, the energy gap allows some waves with wavelengths around 200 nanometers to pass through. But in commercial implementation, there are many difficulties to overcome. Aluminum nitride is used in optoelectronic engineering, including as dielectric layers in optical storage interfaces and electronic substrates, as chip carriers with high thermal conductivity, and for military applications.
Due to the properties of the piezoelectric effect of aluminum nitride, epitaxial stretching of aluminum nitride crystals is also used for surface acoustic wave detectors. The detectors are placed on silicon wafers. There are very few places where these thin films can be produced reliably.
Aluminum nitride ceramics have the characteristics of high room temperature and high temperature strength, small expansion coefficient and good thermal conductivity, and can be used as heat exchanger materials for high temperature structural parts.
Using aluminum nitride ceramics to resist the corrosion properties of iron, aluminum and other metals and alloys, it can be used as crucible and casting mold materials for smelting Al, Cu, Ag, Pb and other metals.
The main supplier of Aluminum Niitride
Luoyang Trunnano Tech Co., Ltd (TRUNNANO) is a professional nitirde powder supplier with over 12 years of 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 boron carbide powder, please feel free to contact us and send an inquiry.
Due to the Russia-Ukraine conflict and the covid-19 pandemic, how will the international situation develop is highly uncertain. It is too difficult to assess its economic impact properly. However, we could see energy prices and commodity prices keep rising and supply chains are disrupted. Therefore, Aluminum Niitride prices are expected to rise in the future.