Grade A Lava vs. Alpha Quartz
Grade A lava belongs to the oxide-based engineering ceramics classification, while alpha quartz belongs to the non-glass optical ceramics. There are 5 material properties with values for both materials. Properties with values for just one material (19, in this case) are not shown.
For each property being compared, the top bar is grade A lava and the bottom bar is alpha quartz.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 2.3 to 2.5 | |
| 2.7 |
| Specific Heat Capacity, J/kg-K | 840 | |
| 720 |
| Thermal Conductivity, W/m-K | 2.0 | |
| 8.5 |
| Thermal Diffusivity, mm2/s | 1.0 | |
| 4.4 |
| Thermal Expansion, µm/m-K | 2.5 to 3.3 | |
| 9.5 |