Alpha Quartz vs. Graphite
Alpha quartz belongs to the non-glass optical ceramics classification, while graphite belongs to the non-oxide engineering ceramics. There are 6 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.
For each property being compared, the top bar is alpha quartz and the bottom bar is graphite.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 2.7 | |
| 1.8 |
| Elastic (Young's, Tensile) Modulus, GPa | 91 | |
| 21 |
| Stiffness to Weight: Axial, points | 19 | |
| 6.7 |
| Stiffness to Weight: Bending, points | 57 | |
| 53 |
| Thermal Conductivity, W/m-K | 8.5 | |
| 6.0 |
| Thermal Expansion, µm/m-K | 9.5 | |
| 4.9 |