Grade A Lava vs. CVD Diamond
Grade A lava belongs to the oxide-based engineering ceramics classification, while CVD diamond belongs to the non-oxide engineering ceramics. There are 9 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.
For each property being compared, the top bar is grade A lava and the bottom bar is CVD diamond.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 2.3 to 2.5 | |
| 3.5 |
| Dielectric Constant (Relative Permittivity) At 1 MHz | 5.3 to 5.8 | |
| 5.7 |
| Specific Heat Capacity, J/kg-K | 840 | |
| 500 |
| Strength to Weight: Axial, points | 0.77 to 2.5 | |
| 59 |
| Strength to Weight: Bending, points | 3.2 to 7.3 | |
| 52 |
| Tensile Strength: Ultimate (UTS), MPa | 6.9 to 21 | |
| 750 |
| Thermal Conductivity, W/m-K | 2.0 | |
| 1900 |
| Thermal Diffusivity, mm2/s | 1.0 | |
| 1080 |
| Thermal Expansion, µm/m-K | 2.5 to 3.3 | |
| 1.0 |