CVD Diamond vs. Grade A Lava
CVD diamond belongs to the non-oxide engineering ceramics classification, while grade A lava belongs to the oxide-based 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 CVD diamond and the bottom bar is grade A lava.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 3.5 | |
| 2.3 to 2.5 |
| Dielectric Constant (Relative Permittivity) At 1 MHz | 5.7 | |
| 5.3 to 5.8 |
| Specific Heat Capacity, J/kg-K | 500 | |
| 840 |
| Strength to Weight: Axial, points | 59 | |
| 0.77 to 2.5 |
| Strength to Weight: Bending, points | 52 | |
| 3.2 to 7.3 |
| Tensile Strength: Ultimate (UTS), MPa | 750 | |
| 6.9 to 21 |
| Thermal Conductivity, W/m-K | 1900 | |
| 2.0 |
| Thermal Diffusivity, mm2/s | 1080 | |
| 1.0 |
| Thermal Expansion, µm/m-K | 1.0 | |
| 2.5 to 3.3 |