C-820 Magnesia Ceramic vs. Mullite
Both C-820 magnesia ceramic and mullite are oxide-based engineering ceramics. There are 12 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 C-820 magnesia ceramic and the bottom bar is mullite.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 110 to 170 |
| Flexural Strength, MPa | 53 | |
| 130 to 160 |
Thermal Properties
| Specific Heat Capacity, J/kg-K | 950 | |
| 950 |
| Thermal Conductivity, W/m-K | 8.0 | |
| 3.5 to 11 |
| Thermal Expansion, µm/m-K | 11 | |
| 5.8 |
Electrical Properties
| Dielectric Constant (Relative Permittivity) At 1 Hz | 10 | |
| 8.0 |
| Dielectric Constant (Relative Permittivity) At 1 MHz | 9.6 | |
| 6.3 |
| Electrical Dissipation At 1 MHz | 0.00030 | |
| 0.0025 |
Otherwise Unclassified Properties
| Density, g/cm3 | 2.7 | |
| 2.7 to 3.0 |
Common Calculations
| Stiffness to Weight: Axial, points | 21 | |
| 22 to 31 |
| Stiffness to Weight: Bending, points | 58 | |
| 58 to 62 |
| Thermal Diffusivity, mm2/s | 3.1 | |
| 1.4 to 3.7 |