Aluminum Nitride (AlN) vs Alumina 96% (Al2O3)
Property comparison of Aluminum Nitride (AlN) and Alumina 96% (Al2O3), both ceramic.
| Property | Aluminum Nitride (AlN) | Alumina 96% (Al2O3) | Difference |
|---|---|---|---|
| Elastic modulus | 330,000 MPa | 310,000 MPa | -6% |
| Shear modulus | 133,000 MPa | 120,000 MPa | -10% |
| Poisson ratio | 0.24 | 0.21 | -13% |
| Density | 3,260 kg/m³ | 3,720 kg/m³ | +14% |
| Thermal conductivity | 170 W/m·K | 18 W/m·K | -89% |
| Specific heat | 740 J/kg·K | 880 J/kg·K | +19% |
| Coefficient of thermal expansion | 0.000005 1/K | 0.000007 1/K | +64% |
Difference is Alumina 96% (Al2O3) relative to Aluminum Nitride (AlN). 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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