Lithium Fluoride vs. Engineering Porcelain
Lithium fluoride belongs to the non-glass optical ceramics classification, while engineering porcelain belongs to the oxide-based engineering ceramics. There are 12 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 lithium fluoride and the bottom bar is engineering porcelain.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 67 to 150 |
| Poisson's Ratio | 0.27 | |
| 0.17 |
| Shear Modulus, GPa | 52 | |
| 34 |
Thermal Properties
| Specific Heat Capacity, J/kg-K | 1560 | |
| 600 to 1000 |
| Thermal Conductivity, W/m-K | 12 | |
| 1.8 to 6.5 |
| Thermal Expansion, µm/m-K | 32 | |
| 2.0 to 6.6 |
Electrical Properties
| Dielectric Constant (Relative Permittivity) At 1 MHz | 9.0 | |
| 6.5 |
| Electrical Dissipation At 1 MHz | 0.00020 | |
| 0.00043 to 0.013 |
Otherwise Unclassified Properties
| Density, g/cm3 | 2.6 | |
| 2.3 to 3.0 |
Common Calculations
| Stiffness to Weight: Axial, points | 24 | |
| 16 to 29 |
| Stiffness to Weight: Bending, points | 62 | |
| 49 to 65 |
| Thermal Diffusivity, mm2/s | 2.9 | |
| 0.73 to 3.9 |