Nanocrystalline diamond

Microcrystalline diamond

Electronic

Poor Mobility [4]

Semiconductor properties

Hardness [GPa]

35 - 75 [18]

100

Friction coefficient

0.02 [7]

0.1

Young’s modulus [GPa]

1100 [18]

1120

Grain size [nm]

10 - 100

>10,000