Buy Online: The Properties of Diamond
As an engineering material diamond has several extreme properties that make it a suitable material for advanced applications. Its exceptional attributes encompass optical, thermal, mechanical, chemical, electronic and electrical properties.
It is the hardest known materialIt has a broad transmission specrumIt has a wide electronic bandgapIt has the highest thermal conductivityIt has the highest resistance to thermal shockIs extremely chemical and biochemically inertIt has a low thermal expansion coefficientIs a good electrical insulatorBecomes a good electrical conductor when dopedIt has a low dielectric constant and dielectric lossIt has high electron mobilityIt is radiation hardGraphitises only at very high temperatures
Fundamental Material Properties of Diamond
| Property | Value |
|---|---|
| Average Density | 3.515 g.cm3 |
| Atom Density | 1.77 x 1023 cm-3 |
| Young's Modulus | 1000 - 1100 GPa |
| Poisson's Ratio | 0.1 |
| Scratch Hardness (Mohs) | 10 |
| Bandgap | 5.47 eV |
| Vickers Hardness | 10,000 kg.mm-2 |
| Friction Coefficient | 0.3 - 0.1 |