Synthetic Sapphire vs. Silver Bromide
Synthetic sapphire belongs to the oxide-based engineering ceramics classification, while silver bromide belongs to the non-glass optical ceramics. There are 12 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is synthetic sapphire and the bottom bar is silver bromide.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 450 | |
| 32 |
Thermal Properties
| Melting Onset (Solidus), °C | 2050 | |
| 430 |
| Specific Heat Capacity, J/kg-K | 760 | |
| 290 |
| Thermal Conductivity, W/m-K | 30 | |
| 1.2 |
| Thermal Expansion, µm/m-K | 5.3 | |
| 30 |
Electrical Properties
| Dielectric Constant (Relative Permittivity) At 1 MHz | 10 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 4.0 | |
| 6.5 |
| Light Transmission Range, µm | 0.17 to 5.5 | |
| 0.45 to 35 |
| Refractive Index | 1.8 | |
| 2.3 |
Common Calculations
| Stiffness to Weight: Axial, points | 63 | |
| 2.7 |
| Stiffness to Weight: Bending, points | 64 | |
| 16 |
| Thermal Diffusivity, mm2/s | 9.9 | |
| 0.64 |