Cordierite (2MgO-2Al2O3-5SiO2) vs Mullite (3Al2O3-2SiO2)
Property comparison of Cordierite (2MgO-2Al2O3-5SiO2) and Mullite (3Al2O3-2SiO2), both ceramic.
| Property | Cordierite (2MgO-2Al2O3-5SiO2) | Mullite (3Al2O3-2SiO2) | Difference |
|---|---|---|---|
| Elastic modulus | 70,000 MPa | 151,000 MPa | +116% |
| Shear modulus | 29,000 MPa | 59,000 MPa | +103% |
| Poisson ratio | 0.21 | 0.25 | +19% |
| Density | 2,100 kg/m³ | 2,800 kg/m³ | +33% |
| Thermal conductivity | 1.5 W/m·K | 6 W/m·K | +300% |
| Specific heat | 830 J/kg·K | 780 J/kg·K | -6% |
| Coefficient of thermal expansion | 0.000003 1/K | 0.000005 1/K | +86% |
Difference is Mullite (3Al2O3-2SiO2) relative to Cordierite (2MgO-2Al2O3-5SiO2). 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
- ASTM
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