Silicon Carbide (SiC sintered) vs Steatite (MgO-SiO2 ceramic)
Property comparison of Silicon Carbide (SiC sintered) and Steatite (MgO-SiO2 ceramic), both ceramic.
| Property | Silicon Carbide (SiC sintered) | Steatite (MgO-SiO2 ceramic) | Difference |
|---|---|---|---|
| Elastic modulus | 410,000 MPa | 105,000 MPa | -74% |
| Shear modulus | 170,000 MPa | 42,000 MPa | -75% |
| Poisson ratio | 0.16 | 0.25 | +56% |
| Density | 3,150 kg/m³ | 2,700 kg/m³ | -14% |
| Thermal conductivity | 120 W/m·K | 2.5 W/m·K | -98% |
| Specific heat | 750 J/kg·K | 870 J/kg·K | +16% |
| Coefficient of thermal expansion | 0.000004 1/K | 0.000008 1/K | +100% |
Difference is Steatite (MgO-SiO2 ceramic) relative to Silicon Carbide (SiC sintered). Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- standard
- ASTM
- standard
- DIN
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