1. Alumina ceramic is a ceramic material mainly composed of alumina (Al2O3), which is used 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 a kind of ceramics with a wide range of uses. Because of its superior performance, it has been more and more widely used in modern society, meeting the needs of daily use and special performance.
2. Zirconia ceramic knife is a knife made of special ceramic materials, which can process quenched materials. Alumina ceramic materials are used to make high-temperature crucibles, refractory furnace tubes and special wear-resistant materials, such as ceramic bearings, ceramic seals and water valve, etc. Alumina ceramics have extremely high hardness. Both single crystal and polycrystalline alumina ceramics have superior hardness characteristics compared with stainless steel. Since the hardness of ceramic brackets is 9 times that of stainless steel and enamel, when teeth are in contact with ceramic brackets, the enamel will be worn away quickly.
3. 99 alumina porcelain materials are used to make high-temperature crucibles, refractory furnace tubes and special wear-resistant materials, such as ceramic bearings, ceramic seals and water valve plates; 95 alumina porcelain is mainly used for corrosion-resistant and wear-resistant parts; 85 Porcelain is often mixed with some talc, which improves the electrical properties and mechanical strength, and can be sealed with metals such as molybdenum, niobium, and tantalum, and some are used as electric vacuum devices.
4. High-purity alumina ceramics are ceramic materials with an Al2O3 content of more than 99.9%. Because their sintering temperature is as high as 1650-1990°C and their transmission wavelength is 1-6μm, they are generally made of molten glass to replace platinum crucibles; It can be used as a sodium lamp tube with anti-alkali and alkali metal corrosion resistance; it can be used as an integrated circuit substrate and high-frequency insulating material in the electronics industry.