Aluminum Nitride

Ceramic Material with Very High Thermal Conductivity

Aluminum Nitride Ceramics

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

ALN90 ALN170
General properties Characteristics High purity High thermal conductivity
Main component purity (wt%) 99.5 94
Color Black Light gray
Density (g/cm3) 3.24 3.31
Water absorption (%) 0 0
Mechanical properties Bending strength (MPa) 295 345
Young’s modulus (GPa) 320 320
Vickers hardness (GPa) 11 11
Thermal properties Max. operating temperature (°C) 1000 1000
Coefficient of thermal expansion (1/°C×10-6) RT~500°C 4.4 4.4
RT~800°C 5.1 5.1
Coefficient of thermal conductivity (W/m×K) 90 170
Thermal shock resistance ΔT (°C) 300 400
Electrical properties Volume resistivity 25°C 1014 1014
300°C 108 1010
500°C 107 107
800°C 105 105
Dielectric constant 10GHz 8.5 8.5
Dielectric loss (×10-4) 30 30
Q factor (×104) 0.03 0.03
Dielectric breakdown voltage (KV/mm)



  • Properties of Aluminum Nitride (AlN)
    High thermal conductivity
    High electrical insulation capacity
    Low thermal expansion
    Thermal stability and shock resistance
    Plasma corrosion resistance
    Good metallization capacity
  • Applications of Aluminum Nitride
    Semiconductor manufacturing equipment components
    Electronic substrates
    Heater components

    Transportation components
    High power insulators
    Laser components
    Water cooled heatsinks
    Power electronics
    Heat sinks
    Heat spreaders
    Laser heatsinks power rectifiers
  • Shape of Aluminum Nitride
    Plate, bar, pipe, crucible, complex design, We can produce in any shapes.

    Large size up to Diameter 600mm is available.

Aluminum Nitride Ceramics

aluminum nitride ceramics
aluminum nitride ceramic
Aln ceramic components