Hardness of Aluminum Nitride Ceramics


Apr 20, 2023 ,

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What is Aluminum Nitride Ceramic?

Aluminum nitride clays are ceramics containing aluminum nitride, (AIN), as the main crystal phase. Aluminum nitride is the main raw material used in high thermal conductivity aluminum-nitride ceramic substrates. It has high purity, small particles, and high activity.

Aluminum Nitride Ceramics: Hardness

Aluminum nitride ceramics have become more widely used with the advances in science and technology. The most common uses of aluminum nitride pottery are in aerospace, electronics, semiconductors, and other areas. Aluminum nitride cermics exhibit high strength, hardness and wear resistance. Aluminum nitride clays have a hardness second only to diamond.

Aluminum nitride is a key structural ceramic material. Its chemical formula is ALN. It is superhard and resists wear and oxidation at elevated temperatures. Aluminum nitride ceramics are possible to be made under normal pressure.

First of all, aluminum nitride cermics rank fourth in organic materials after diamond, cubic boron, and boron carbide. Hot-pressing sintering is the best way to obtain high-density aluminium nitride. It is extremely strong and resistant to oxidation. Additionally, it can be formed under extreme temperatures. It can be used for turbine blades in high-temperature, gas turbines. It can also be used for wear-resistant sealing and heating plates in the semiconductor industry to heat silicon wafers.

Aluminum nitride ceramics have a high hardness, making them difficult to process. It can be difficult to process without the use of professional processing technology and advanced equipment. Material can be scrapped if it lacks craftsmanship.

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