Aluminum Nitride can be used as a vacuum evaporation and smelting metal container, and is particularly suitable for vacuum evaporation of aluminum crucibles, because aluminum nitride vapor pressure in a vacuum is low, even if it is decomposed, it will not contaminate aluminum. Aluminum nitride can also be used as a thermocouple protection sleeve, and continuously soak 3000hI,J,I--Lk__ in an 800-1000°C aluminum bath in the air without erosion damage. In the semiconductor industry, gallium arsenide is used instead of quartz gallium to synthesize gallium arsenide, which can completely eliminate the contamination of gallium arsenide with Si to obtain high-purity products. Hot pressed Al N products containing Si, Mg O. Its thermal conductivity reaches 0.63W/cm. K, can be used as an integrated circuit substrate. The product's hot pressing temperature is 1800 oC and the pressure 30 time is 30min. Adding CaF 2 can reduce the friction coefficient of AI N, so it can be used as a friction reduction part for submersible pumps. However, when the amount is more than 10%, the stability in the acid-base solution is very high, which is similar to the additive-free #JAI N product. The reaction of AI N and A1203 can generate single-phase cubic nitroxide spinel. It has good high temperature and strong pressure, and its strength is still kept at 500M Pa at 1500 oC. It has higher chemical stability and is a very good refractory material. [In addition, aluminum nitride has a small coefficient of thermal expansion, good thermal conductivity, and high strength, so it can be used as a packaging for high-temperature components, heat exchangers, etc.: Aluminum nitride is packaged in high-pressure plastic bags, each bag has a net weight of 1 kg. Can also be packaged according to customer's requirements.
