Grade A Lava vs. Aluminum Nitride
Grade A lava belongs to the oxide-based engineering ceramics classification, while aluminum nitride belongs to the non-oxide engineering ceramics. There are 10 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.
For each property being compared, the top bar is grade A lava and the bottom bar is aluminum nitride.
Metric UnitsUS Customary Units
Material Properties
| Compressive (Crushing) Strength, MPa | 76 to 170 | |
| 2100 |
| Density, g/cm3 | 2.3 to 2.5 | |
| 2.9 to 3.3 |
| Dielectric Constant (Relative Permittivity) At 1 MHz | 5.3 to 5.8 | |
| 6.9 to 28 |
| Dielectric Strength (Breakdown Potential), kV/mm | 3.2 to 3.9 | |
| 15 to 56 |
| Flexural Strength, MPa | 28 to 69 | |
| 190 to 400 |
| Maximum Temperature: Mechanical, °C | 650 to 1130 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 840 | |
| 780 |
| Thermal Conductivity, W/m-K | 2.0 | |
| 80 to 190 |
| Thermal Diffusivity, mm2/s | 1.0 | |
| 31 to 74 |
| Thermal Expansion, µm/m-K | 2.5 to 3.3 | |
| 4.2 to 5.4 |