Magnesium Fluoride vs. Steatite
Magnesium fluoride belongs to the non-glass optical ceramics classification, while steatite belongs to the oxide-based engineering ceramics. There are 10 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 magnesium fluoride and the bottom bar is steatite.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 3.2 | |
| 1.9 to 2.8 |
| Dielectric Constant (Relative Permittivity) At 1 MHz | 5.2 | |
| 5.7 to 6.5 |
| Elastic (Young's, Tensile) Modulus, GPa | 130 | |
| 68 to 120 |
| Poisson's Ratio | 0.27 | |
| 0.23 |
| Specific Heat Capacity, J/kg-K | 980 | |
| 850 to 860 |
| Stiffness to Weight: Axial, points | 22 | |
| 14 to 32 |
| Stiffness to Weight: Bending, points | 52 | |
| 52 to 83 |
| Thermal Conductivity, W/m-K | 28 | |
| 1.8 to 2.5 |
| Thermal Diffusivity, mm2/s | 8.8 | |
| 0.79 to 1.1 |
| Thermal Expansion, µm/m-K | 11 | |
| 7.0 to 9.0 |