Why aluminum nitride powder is a good heat-resistant impact material?
Views : 95
Author : Lzh
Update time : 2023-02-06 14:24:06
What is aluminum nitride powder? Aluminum nitride is an atomic crystal that belongs to diamond-like nitride and can be stabilized to 2200 ℃. The room temperature strength is high, and the strength decreases slowly with the increase. It has good thermal conductivity and a small coefficient of thermal expansion and is a good heat-resistant impact material. It has strong resistance to molten metal erosion 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; it is also promising to be used as an electrical component. Due to the characteristics of the piezoelectricity effect of aluminum nitride, the epitaxial extension of aluminum nitride crystal is also used for the detection of surface acoustic waves. Aluminum nitride is used in optoelectronic engineering, including the optical storage interface, the electronic substrate as the inductive layer, and the wafer carrier under high thermal conductivity, As well as for military use. Ultrafine aluminum nitride powder is mainly used as a thermally conductive filler for polymer materials. It is a very good kind of high thermal conductive insulating filler. It has a wide application prospect in electronic adhesives, thermally conductive plastics, LED heat dissipation, and heat transfer.
Characteristics of aluminum nitride powder AlN is an atomic crystal of diamond-like nitride, which can be stabilized up to 2200 ℃. The room temperature strength is high, and the strength decreases slowly with the increase in temperature. It has good thermal conductivity and a small coefficient of thermal expansion and is a good heat-resistant impact material. It has strong resistance to molten metal erosion 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 and is also very promising as an electrical component. The aluminum nitride coating on the gallium arsenide's surface can protect it from ion implantation during annealing. Aluminum nitride is a catalyst for converting hexagonal boron nitride into 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, and the product is white to gray-blue powder. Or it can be synthesized from the Al2O3-C-N2 system at 1600~1750 ℃, and the product is gray-white powder. Or aluminum chloride and ammonia can be prepared by gas phase reaction. The coating can be synthesized from the AlCl3-NH3 system through gas phase deposition.
Application of aluminum nitride powder It is reported that most current research is developing a light-emitting diode based on a semiconductor (gallium nitride or alloy aluminum gallium nitride) and operating in ultraviolet light. The wavelength of light is 250 nm. In May 2006, it was reported that an inefficient diode could emit light waves with a wavelength of 210 nm. According to the vacuum ultraviolet reflectance, a single aluminum nitride crystal has a 6.2eV energy gap. Theoretically, The energy gap allows some waves with a wavelength of about 200 nm to pass through. However, many difficulties need to be overcome when it is implemented commercially. Aluminum nitride is used in optoelectronic engineering, including optical storage interface and electronic substrate as an inductive layer, wafer carrier under high thermal conductivity, and military use. Due to the characteristics of the aluminum nitride piezoelectric effect, The epitaxial extension of aluminum nitride crystals is also used for surface acoustic wave detectors. The detectors will be placed on silicon wafers. Only very few places can reliably produce these thin films.
Price of aluminum nitride powder Aluminum nitride powder particle size and purity will affect the product's price, and the purchase volume can also affect the cost of aluminum nitride powder. A large amount of large amount will be lower. The price of aluminum nitride powder can be found on our company's official website.
Aluminum nitride powder supplier Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including aluminum nitride powder, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective aluminum nitride powder, you are welcome tocontact usor inquire at any time.
