Why aluminum nitride has excellent thermal shock resistance?
Views : 120
Author : Lzh
Update time : 2023-02-06 13:49:42
What is aluminum nitride powder? Aluminum nitride is a low coefficient of thermal expansion. It 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. Aluminum nitride is also an electrical insulator with good dielectric properties. Ultrafine aluminum nitride powder is widely used in large-scale integrated circuit production.
Preparation of aluminum nitride powder Direct nitridation of aluminum powder: ALN+N2 → 2ALN Put aluminum powder into a reaction furnace filled with nitrogen and ammonia and heat it to 600 ℃ to start the reaction. This simple and direct method can synthesize a large number of ALN powders with high purity without any side reaction. At present, it has been produced on a large scale. However, this method generally difficult to obtain aluminum nitride powder with fine particles and uniform particle size, Post-treatment is usually required. In addition, the formation of the ALN layer on the surface of AL particles after nitriding will hinder the diffusion of nitrogen to the center of particles. Therefore, the conversion rate of this method is also an important issue.
Advantages of aluminum nitride Uniform microstructure, high thermal conductivity (70-180 Wm - 1 K - 1). Customized by processing conditions and additives, high resistivity, thermal expansion coefficient close to silicon, corrosion resistance and corrosion resistance, excellent thermal shock resistance, chemical stability in H2 and CO2 atmosphere up to 980 ° C, in the air up to 1380 ° C (surface oxidation occurs at about 780 ° C; surface layer protection body up to 1380 ° C).
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.
