Mechanical Properties of CVD Diamond

Diamond is known for its extreme hardness. It exhibits an exceptional wear resistance and a low coefficient of friction. These properties make CVD diamond an ideal choice for highly demanding applications such as cutting tools for non-ferrous materials, surgical knives and wear resistant coatings.

We have summarized the main properties of CVD diamond in our "CVD diamond booklet".

Vickers-Hardness of Diamond
Vickers hardness 10.000 kg/mm2
Young´s Modulus 1050 GPa
Thermal expansion coefficient @300K 1.0×10-6 K-1
Poisson´s ratio 0.1
Density 3.515 g/cm3
Tensile strength (thickness 500µm) Nucleation side in tension 750 MPa