Silicon Carbide vs. Yttria
Silicon carbide belongs to the non-oxide engineering ceramics classification, while yttria belongs to the oxide-based engineering ceramics. There are 10 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is silicon carbide and the bottom bar is yttria.
Metric UnitsUS Customary Units
Material Properties
| Compressive (Crushing) Strength, MPa | 2780 to 3900 | |
| 390 |
| Density, g/cm3 | 3.0 to 3.2 | |
| 5.0 |
| Elastic (Young's, Tensile) Modulus, GPa | 370 to 490 | |
| 120 |
| Maximum Temperature: Mechanical, °C | 500 to 1590 | |
| 2000 |
| Specific Heat Capacity, J/kg-K | 670 to 1180 | |
| 440 |
| Stiffness to Weight: Axial, points | 69 to 84 | |
| 13 |
| Stiffness to Weight: Bending, points | 79 to 82 | |
| 32 |
| Thermal Conductivity, W/m-K | 120 to 170 | |
| 0.3 |
| Thermal Diffusivity, mm2/s | 38 to 79 | |
| 0.14 |
| Thermal Expansion, µm/m-K | 4.0 to 4.5 | |
| 8.0 |