Alumina vs. Ceria
Both alumina and ceria are oxide-based engineering ceramics. There are 10 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is alumina and the bottom bar is ceria.
Metric UnitsUS Customary Units
Material Properties
Compressive (Crushing) Strength, MPa | 1920 to 2750 | |
590 |
Density, g/cm3 | 3.4 to 4.1 | |
7.6 |
Elastic (Young's, Tensile) Modulus, GPa | 220 to 370 | |
180 |
Electrical Resistivity Order of Magnitude, 10x Ω-m | 6.2 to 14 | |
4.0 |
Maximum Temperature: Mechanical, °C | 650 to 1730 | |
1900 |
Melting Onset (Solidus), °C | 2040 | |
2340 |
Specific Heat Capacity, J/kg-K | 870 to 940 | |
390 |
Stiffness to Weight: Axial, points | 35 to 53 | |
13 |
Stiffness to Weight: Bending, points | 57 to 62 | |
25 |
Thermal Expansion, µm/m-K | 6.7 to 8.2 | |
11 |