Aluminum Nitride (AlN) is a unique ceramic material that combines high thermal conductivity with high electrical resistivity. Only a few ceramics possess high thermal conductivity: Beryllium Oxide (BeO) and cubic Boron Nitride (c-BN) are virtually the only other examples.
Aluminum Nitride (AlN), a covalently-bonded ceramic, is synthesized from the abundant elements aluminum and nitrogen. It does not occur naturally.
AlN is stable in inert atmospheres at temperatures over 2000°C. It exhibits high thermal conductivity but is, uniquely, a strong dielectric. This unusual combination of properties makes AlN a critical advanced material for many future applications in optics,
lighting, electronics and renewable energy.
2.High thermal conductivity* (70-180 Wm-1K-1), tailored via processing conditions and additives
3.High electrical resistivity
4.Thermal expansion coefficient close to that of Silicon
5.Resistance to corrosion and erosion
6.Excellent thermal shock resistance
7.Chemically stable up to 980°C in H2 and CO2 atmospheres, and in air up to 1380°C (surface oxidation occurs around 780°C; the surface layer protects the bulk up to 1380°C).
Modulus of elasticity
1.High Thermal Conductivity Substrates for LED & Power Electronics
2.SUBSTRATES FOR POWER ELECTRONICS
3.SUBSTRATES FOR POWER ELECTRONICS