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Almax Industries – High Pressure Diamonds . Manufacturer in Belgium .
Associated with diamond will almost always be the most extreme:
Diamond is invariably ' the biggest and the best and ideal for high pressure diamonds'. The following is a table of the properties of diamond that render it so potentially useful
across many fields of science (Ref. 'Synthetic Diamond - Emerging
CVD Science and Technology', Spear and Dismukes, Wiley, NY, 1994)
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| Hardness |
10,000 |
kg/mm2 |
| Strength, tensile |
>1.2 |
GPa |
| Strength, compressive |
>110 |
GPa |
| Sound velocity |
18,000 |
m/s |
| Density |
3.52 |
g/cm3 |
| Young's modulus |
1.22 |
GPa |
| Poisson's ratio |
0.2 |
Dimensionless |
| Thermal expansion coefficient |
0.0000011 |
/K |
| Thermal conductivity |
20.0 |
W/cm-K |
| Thermal shock parameter |
30,000,000 |
W/m |
| Debye temperature |
2,200 |
K |
| Optical index of refraction (at 591 nm) |
2.41 |
Dimensionless |
| Optical transmissivity (from nm to far IR) |
225 |
Dimensionless |
| Loss tangent at 40 Hz |
0.0006 |
Dimensionless |
| Dielectric constant |
5.7 |
Dimensionless |
| Dielectric strength |
10,000,000 |
V/cm |
| Electron mobility |
2,200 cm2 |
/V-s |
| Hole mobility1,600cm2/V-s |
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| Electron saturated velocity |
27,000,000 |
cm/s |
| Hole saturated velocity |
10,000,000 |
cm/s |
| Work function |
small and negative |
cm/s |
| Bandgap |
5.45 |
eV |
| Resistivity |
1013-1016 |
Ohm-cm |
Almax Industries – High Pressure Diamonds . Manufacturer in Belgium .
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