Lithium Fluoride vs. Steatite
Lithium fluoride belongs to the non-glass optical ceramics classification, while steatite belongs to the oxide-based engineering ceramics. There are 11 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 lithium fluoride and the bottom bar is steatite.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 68 to 120 |
| Poisson's Ratio | 0.27 | |
| 0.23 |
Thermal Properties
| Specific Heat Capacity, J/kg-K | 1560 | |
| 850 to 860 |
| Thermal Conductivity, W/m-K | 12 | |
| 1.8 to 2.5 |
| Thermal Expansion, µm/m-K | 32 | |
| 7.0 to 9.0 |
Electrical Properties
| Dielectric Constant (Relative Permittivity) At 1 MHz | 9.0 | |
| 5.7 to 6.5 |
| Electrical Dissipation At 1 MHz | 0.00020 | |
| 0.0010 to 0.0060 |
Otherwise Unclassified Properties
| Density, g/cm3 | 2.6 | |
| 1.9 to 2.8 |
Common Calculations
| Stiffness to Weight: Axial, points | 24 | |
| 14 to 32 |
| Stiffness to Weight: Bending, points | 62 | |
| 52 to 83 |
| Thermal Diffusivity, mm2/s | 2.9 | |
| 0.79 to 1.1 |