Cordierite (2MgO-2Al2O3-5SiO2) vs Hexagonal Boron Nitride (h-BN hot-pressed)
Property comparison of Cordierite (2MgO-2Al2O3-5SiO2) and Hexagonal Boron Nitride (h-BN hot-pressed), both ceramic.
| Property | Cordierite (2MgO-2Al2O3-5SiO2) | Hexagonal Boron Nitride (h-BN hot-pressed) | Difference |
|---|---|---|---|
| Elastic modulus | 70,000 MPa | 73,800 MPa | +5% |
| Shear modulus | 29,000 MPa | 31,000 MPa | +7% |
| Poisson ratio | 0.21 | 0.24 | +14% |
| Density | 2,100 kg/m³ | 1,900 kg/m³ | -10% |
| Thermal conductivity | 1.5 W/m·K | 33 W/m·K | +2100% |
| Specific heat | 830 J/kg·K | 1,610 J/kg·K | +94% |
| Coefficient of thermal expansion | 0.000003 1/K | 0.000003 1/K | +7% |
Difference is Hexagonal Boron Nitride (h-BN hot-pressed) 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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