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The Applications of Aluminum Niitride

US President recently decided to invoke a Cold War-era defense law to encourage domestic production of minerals needed to make batteries for electric cars.

This order, issued under the Defense Production Act (DPA), is expected to help miners secure government funding for feasibility studies for new projects to refine lithium, nickel, and other metals for electric vehicles, or to increase productivity at existing facilities.

The funds will not be used to dig new mines or buy minerals for government stocks, and the DPA does not allow the mining industry to evade regulatory or licensing standards. It is unclear how much money could be allocated.

Talon Metals Corp said this decision signaled the US would support responsible domestic mining, processing, and recycling of battery materials, and see it as a matter of national importance. The company has a supply agreement with Tesla to supply materials from a Minnesota nickel mine they are developing.

This move could cause volatility in the prices of metals and other commodities like the 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
Other Names Aluminium nitride
CAS No. 24304-00-5
Compound Formula AlN
Molecular Weight 40.9882
Appearance White to pale yellow powder
Melting Point 2200 °C
Boiling Point 2517 °C (dec.)
Density 2.9 to 3.3 g/cm3
Solubility in H2O N/A
Electrical Resistivity 10 to 12 10x Ω-m
Poisson's Ratio 0.21 to 0.31
Specific Heat 780 J/kg-K
Thermal Conductivity 80 to 200 W/m-K
Thermal Expansion 4.2 to 5.4 µm/m-K
Young's Modulus 330 GPa
Exact Mass 40.9846
Monoisotopic Mass 40.9846

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 [1]. 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.
 
 

China's non-manufacturing purchasing managers index for March was released by the China Federation of Logistics and Purchasing and the Service Industry Survey Center of the National Bureau of Statistics today. An index of business activity for the non-manufacturing sector as a whole fell below 50 percent. 

 China's non-manufacturing business activity index was 48.4%, down 3.2 percentage points from the previous month. The new orders index was 45.7 percent, down 1.9 percentage points from the previous month, indicating a significant slowdown in the growth of supply and demand in the non-manufacturing sector from the previous month.   In terms of sectors, the business activity index and new order index of transportation, accommodation and catering, culture, sports and entertainment, and tourism-related industries all declined significantly from the previous month. 

Then the Aluminum Niitride of the market may be affected by significant changes, the price will also be volatile, if you want to know the latest news of the Aluminum Niitride, welcome to contact us. 

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