Aluminum nitride is a ceramic insulator, which gives aluminum nitride a high heat transfer capacity, so that aluminum nitride is widely used in microelectronics. Unlike beryllium oxide, aluminum nitride is non-toxic. Aluminum nitride is a metal treatment that can replace bauxite and beryllium oxide in a wide range of electronic instruments. Aluminum nitride can be prepared by the reduction of alumina and carbon or directly by aluminum metal nitride. In the air, when the temperature is higher than 700 ° C, oxidation will occur on the surface of the material.
At room temperature, oxide films 5-10 nm thick can still be detected on the surface of the material. Until 1370℃, the oxide film can still protect the substance. However, when the temperature is higher than 1370 ° C, a large amount of oxidation will occur. Up to 980℃, aluminum nitride is still quite stable in hydrogen and carbon dioxide. Mineral acids dissolve slowly by invading the boundaries of granular matter, while strong bases dissolve it by invading granular aluminum nitride. Substances hydrolyze slowly in water. Aluminum nitride is resistant to most melted salts, including chlorides and cryolite (sodium hexafluoroaluminate).
There is a lot of information about aluminum nitride, and its uses are also many, and we will give you a detailed introduction later.