Non-oxide Ceramics – Aluminum Nitride (AlN)

Ceramic Material with Very High Thermal Conductivity

Aluminum nitride (AlN) is a technical ceramic material that features an extremely interesting combination of very high thermal conductivity and excellent electrical insulation properties.

Worth knowing:

Properties of Aluminum Nitride (AlN)

  • Very high thermal conductivity (> 170 W/mK)
  • High electrical insulation capacity (>1.1012Ωcm)
  • Strength according to the double ring method >320 MPa (biaxial strength)
  • Low thermal expansion 4 to 6x10-6K-1 (between 20 and 1000°C)
  • Good metalization capacity

This makes aluminum nitride predestined for use in power and microelectronics applications. For example, it is used as a circuit carrier (substrate) in semiconductors or as a heat-sink in LED lighting technology or high-power electronics.