Synthetic Sapphire vs. Ceria
Both synthetic sapphire and ceria are oxide-based engineering ceramics. There are 10 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.
For each property being compared, the top bar is synthetic sapphire and the bottom bar is ceria.
Metric UnitsUS Customary Units
Material Properties
| Compressive (Crushing) Strength, MPa | 2700 | |
| 590 |
| Density, g/cm3 | 4.0 | |
| 7.6 |
| Elastic (Young's, Tensile) Modulus, GPa | 450 | |
| 180 |
| Electrical Resistivity Order of Magnitude, 10x Ω-m | 17 | |
| 4.0 |
| Maximum Temperature: Mechanical, °C | 2000 | |
| 1900 |
| Melting Onset (Solidus), °C | 2050 | |
| 2340 |
| Specific Heat Capacity, J/kg-K | 760 | |
| 390 |
| Stiffness to Weight: Axial, points | 63 | |
| 13 |
| Stiffness to Weight: Bending, points | 64 | |
| 25 |
| Thermal Expansion, µm/m-K | 5.3 | |
| 11 |