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.
- 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.
| | 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) | – | – |