Hafnia vs. Ceria
Both hafnia and ceria are oxide-based engineering ceramics. There are 9 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is hafnia and the bottom bar is ceria.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 9.7 | |
| 7.6 |
| Elastic (Young's, Tensile) Modulus, GPa | 57 | |
| 180 |
| Electrical Resistivity Order of Magnitude, 10x Ω-m | 9.0 | |
| 4.0 |
| Maximum Temperature: Mechanical, °C | 2800 | |
| 1900 |
| Melting Onset (Solidus), °C | 2900 | |
| 2340 |
| Specific Heat Capacity, J/kg-K | 120 | |
| 390 |
| Stiffness to Weight: Axial, points | 3.3 | |
| 13 |
| Stiffness to Weight: Bending, points | 13 | |
| 25 |
| Thermal Expansion, µm/m-K | 6.0 | |
| 11 |