Diamond (Natural Single Crystal Type IIa) vs Expanded Graphite (Compressed Flexible Sheet rho~1.1)
Property comparison of Diamond (Natural Single Crystal Type IIa) and Expanded Graphite (Compressed Flexible Sheet rho~1.1), both carbon graphite.
| Property | Diamond (Natural Single Crystal Type IIa) | Expanded Graphite (Compressed Flexible Sheet rho~1.1) | Difference |
|---|---|---|---|
| Tensile strength | 3,500 MPa | 8 MPa | -100% |
| Poisson ratio | 0.07 | 0.3 | +329% |
| Density | 3,510 kg/m³ | 1,100 kg/m³ | -69% |
| Thermal conductivity | 2,200 W/m·K | 200 W/m·K | -91% |
| Specific heat | 509 J/kg·K | 720 J/kg·K | +41% |
| Coefficient of thermal expansion | 0.000001 1/K | 0 1/K | -100% |
Difference is Expanded Graphite (Compressed Flexible Sheet rho~1.1) relative to Diamond (Natural Single Crystal Type IIa). Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
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