Argor a-C

Argor a-C is a coating in amorphous carbon free of hydrogen deposited with PVD sputtering technology at temperatures below 120°C and therefore suited for many layers. The standard coating thickness is 1 - 2 µm (custom thicknesses can be requested).

VDI abbreviation a-C
Process PVD Sputtering
Structure Amorphous
sp3 fraction [%] 25-40
Color Black
Thickness 1-2 µm
Max. operating temperature [°C] 450
Hardness [GPa] 9-14
Friction coefficient 0.15

All provided data are approximate values, depend on the application, environment and test conditions. Coating hardness HIT [GPa] measured by nano indentation according to ISO 14577. Hardness can be adapted to the application. Friction coefficient (dry) compared to the steel determined by ball-on-disc dry test with a steel sphere according to ASTM G99. During the running-in the indicated values may be exceeded. Maximum service temperature [° C] These are approximate values.

Argor a-C presents the following advantages:
- suitable for machine components and subject to friction wear
low process temperature, which allows for a wider range of substrate materials 
- wide application field in the machines of textile sector