Calcium Fluoride vs. Zirconia
Calcium fluoride belongs to the non-glass optical ceramics classification, while zirconia belongs to the oxide-based engineering ceramics. There are 10 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 calcium fluoride and the bottom bar is zirconia.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 3.2 | |
| 5.7 to 6.0 |
| Elastic (Young's, Tensile) Modulus, GPa | 80 | |
| 190 to 200 |
| Knoop Hardness | 160 | |
| 1210 to 1300 |
| Poisson's Ratio | 0.26 | |
| 0.25 to 0.29 |
| Specific Heat Capacity, J/kg-K | 860 | |
| 400 to 510 |
| Stiffness to Weight: Axial, points | 14 | |
| 19 |
| Stiffness to Weight: Bending, points | 45 | |
| 33 to 34 |
| Thermal Conductivity, W/m-K | 9.7 | |
| 2.2 to 4.3 |
| Thermal Diffusivity, mm2/s | 3.5 | |
| 0.73 to 1.8 |
| Thermal Expansion, µm/m-K | 19 | |
| 8.8 to 9.5 |