Is aluminum oxide aluminum nitride an insulator or a semiconductor?
2018-09-14
Is aluminum oxide aluminum nitride an insulator or a semiconductor?
Aluminum nitride ceramics (Aluminium Nitride Ceramic) aluminum nitride powder main crystalline phase ceramic AIN crystal [AIN4] tetrahedral structural unit covalent bond compound with wurtzite structure belongs to hexahedral group AI 65.81% N 34.19% Specific gravity 3.261g/cm3 white or grayish white single crystal transparent pressure sublimation solution temperature 2450 °C high temperature heat resistant material thermal expansion coefficient (4.0-6.0) X10 (-6) / °C crystal AIN thermal conductivity up to 260W / (mk) ratio oxidation Aluminum high 5-8 times high thermal shock resistance 2200 ° C extremely hot external aluminum nitride with aluminum liquid, its molten metal and gallium arsenide erosion characteristics, special molten aluminum liquid with extreme corrosion resistance
Alumina ceramics alumina (Al2O3) main ceramic material for thick film collector circuit Alumina ceramics more conductivity, mechanical strength, high temperature resistance, need to pay attention to the need to use ultrasonic cleaning, alumina ceramics, a wide range of ceramics, its superior performance, modern application More and more widely satisfied with special performance needs.