Detailed introduction of aluminum nitride
2026-03-24
Aluminum nitride is a ceramic insulator that gives it high heat transfer capability, leading to its widespread use in microelectronics. Unlike beryllium oxide, aluminum nitride is non-toxic. Aluminum nitride, treated with metal, can replace alumina and beryllium oxide in a large number of electronic instruments. Aluminum nitride can be prepared by the reduction of aluminum oxide and carbon, or by directly nitriding metallic aluminum. When the temperature in the air exceeds 700 ℃, oxidation occurs on the surface of the substance.
At room temperature, 5-10 nanometer thick oxide films can still be detected on the surface of the substance. Until 1370 ℃, the oxide film can still protect the substance. But when the temperature exceeds 1370 ℃, a large amount of oxidation occurs. Until 980 ℃, aluminum nitride remains quite stable in hydrogen and carbon dioxide. Mineral acids dissolve slowly by invading the boundaries of granular materials, while strong bases dissolve by invading granular aluminum nitride. Substances will slowly hydrolyze in water. Aluminum nitride can resist the invasion of most melted salts, including chlorides and cryolite [i.e. sodium hexafluoroaluminate].
There is still a lot of information about aluminum nitride, and its uses are also diverse. I will give you a detailed introduction in the future.
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Detailed introduction of aluminum nitride
