Silicon Nitride vs. C-820 Magnesia Ceramic
Silicon nitride belongs to the non-oxide engineering ceramics classification, while C-820 magnesia ceramic belongs to the oxide-based engineering ceramics. There are 10 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is silicon nitride and the bottom bar is C-820 magnesia ceramic.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 2.2 to 3.4 | |
| 2.7 |
| Dielectric Constant (Relative Permittivity) At 1 MHz | 8.0 to 10 | |
| 9.6 |
| Elastic (Young's, Tensile) Modulus, GPa | 140 to 310 | |
| 100 |
| Flexural Strength, MPa | 130 to 810 | |
| 53 |
| Specific Heat Capacity, J/kg-K | 720 to 800 | |
| 950 |
| Stiffness to Weight: Axial, points | 34 to 53 | |
| 21 |
| Stiffness to Weight: Bending, points | 65 to 78 | |
| 58 |
| Thermal Conductivity, W/m-K | 12 to 31 | |
| 8.0 |
| Thermal Diffusivity, mm2/s | 7.5 to 13 | |
| 3.1 |
| Thermal Expansion, µm/m-K | 2.5 to 3.2 | |
| 11 |