Aluminum Nitride vs. Potassium Chloride
Aluminum nitride belongs to the non-oxide engineering ceramics classification, while potassium chloride belongs to the non-glass optical ceramics. There are 11 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is aluminum nitride and the bottom bar is potassium chloride.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 330 | |
| 28 |
| Poisson's Ratio | 0.21 to 0.31 | |
| 0.18 |
Thermal Properties
| Specific Heat Capacity, J/kg-K | 780 | |
| 690 |
| Thermal Conductivity, W/m-K | 80 to 190 | |
| 6.5 |
| Thermal Expansion, µm/m-K | 4.2 to 5.4 | |
| 36 |
Electrical Properties
| Dielectric Constant (Relative Permittivity) At 1 MHz | 6.9 to 28 | |
| 4.6 |
| Electrical Dissipation At 1 MHz | 0.00020 to 0.0010 | |
| 0.00010 |
Otherwise Unclassified Properties
| Density, g/cm3 | 2.9 to 3.3 | |
| 2.0 |
Common Calculations
| Stiffness to Weight: Axial, points | 55 to 63 | |
| 7.7 |
| Stiffness to Weight: Bending, points | 69 to 80 | |
| 51 |
| Thermal Diffusivity, mm2/s | 31 to 74 | |
| 4.7 |