Properties and parameters of alumina

Release Time:

2023-04-17 15:57

Alumina ceramics (alumina ceramics) is a ceramic material whose main crystal is I-A1203. For thick film integrated circuits. Alumina ceramics have good conductivity, mechanical strength and high temperature resistance. It should be noted that ultrasonic cleaning is required. Alumina ceramics are ceramics with a wide range of uses. Because of its superior performance, it has been widely used in modern society, meeting the needs of daily use and special performance.

Alumina ceramics are currently divided into two types: high-purity type and ordinary type. High-purity alumina ceramics are ceramic materials with an Al2O3 content of more than 99.9%. Because its sintering temperature is as high as 1650-1990°C and the transmission wavelength is 1-6μm, it is generally made into molten glass to replace platinum crucibles: It can resist the corrosion of alkali metal and be used as a sodium lamp tube; it can be used as an integrated circuit substrate and high-frequency insulating material in the electronics industry. Ordinary alumina ceramics are divided into 99 porcelain, 95 porcelain, 90 porcelain, 75 porcelain and other varieties according to Al2O3 content. Sometimes those with Al2O3 content of 80% or 75% are also classified as ordinary alumina ceramics series!

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