Alpha Quartz vs. Cordierite
Alpha quartz belongs to the non-glass optical ceramics classification, while cordierite belongs to the oxide-based engineering ceramics. There are 8 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown.
For each property being compared, the top bar is alpha quartz and the bottom bar is cordierite.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 2.7 | |
| 2.0 to 2.2 |
| Elastic (Young's, Tensile) Modulus, GPa | 91 | |
| 62 |
| Specific Heat Capacity, J/kg-K | 720 | |
| 800 to 850 |
| Stiffness to Weight: Axial, points | 19 | |
| 15 to 17 |
| Stiffness to Weight: Bending, points | 57 | |
| 59 to 67 |
| Thermal Conductivity, W/m-K | 8.5 | |
| 1.3 to 1.7 |
| Thermal Diffusivity, mm2/s | 4.4 | |
| 0.74 to 1.0 |
| Thermal Expansion, µm/m-K | 9.5 | |
| 2.9 to 4.8 |