Aluminum Nitride
Aluminum nitride (AlN) is a chemical compound composed of aluminum and nitrogen. It belongs to the family of III-V compound semiconductors. AlN is known for its wide bandgap, high thermal conductivity, and excellent electrical insulation properties.
The following table provides a comprehensive list of aluminum nitride properties in both SI and US customary/Imperial units at normal temperature and pressure (NTP).
Note: click on the icon to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Chemical Formula | AlN |
| Molar Mass | 40.989 g/mol |
| Density | 3255 kg/m3 |
| Thermal Properties | Metric |
| Melting Point | 2230 °C |
| Thermal Conductivity | 300 W/m·K |
| Specific Heat Capacity (Cp) | 820 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 5.3×10-6 1/°C |
| Electrical Properties | Metric |
| Relative Permittivity (εr) | 8.8 - 8.9 |
Note: unless stated otherwise, all values are taken at room temperature (approximately 20°C or 68°F) and 1 atm pressure. (1 atm = 101,325 Pa)
Related Pages
References: 1) Cardarelli, François. Materials Handbook: A Concise Desktop Reference. Switzerland: Springer International Publishing, 2018. 2) CRC Handbook of Chemistry and Physics, 97th Edition. United Kingdom: CRC Press, 2016-2017.