Aluminum Nitride

Aluminum Nitride

Aluminum nitride (AlN) is a mechanically hard ceramic material with a high melting point and excellent thermal conductivity. It is suited for high performance electronic industry, for such applications as electronic substrates and heat sinks.

Aluminum nitride is translucent to infrared and visible wavelengths (0.5 to 3 µm)

Key aluminum nitride properties:

  • High thermal conductivity (150 – 180 W/m°K)
  • Close thermal expansion coefficient to that of Silicon (Si)
  • High insulation
  • High mechanical strength (320-350 MPa)
  • High corrosion resistance
  • Transparency (allows visible to infrared light to pass through easily)
  • High halogen-plasma resistance
  • Good metalizing and brazing capacity

See properties table for more information.