Argor a-C is the hydrogen-free amorphous carbon coating deposited using sputtering PVD technology at temperatures below 120°C and therefore suitable for a wide range of substrates. The standard coating thickness is 1 - 2 µm (customised thicknesses are available on request).
Characteristics
Advantages
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| 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 data given are approximate values, depending on application, environment and test conditions. Coating hardness HIT [GPa] Measured by nano indentation according to ISO 14577. The hardness can be adapted to the application. Coefficient of friction (dry) versus steel determined by dry disc ball test with a steel ball according to ASTM G99. These values may be exceeded during run-in. Maximum service temperature [°C] These are approximate values.
Argor a-C has the following advantages:
- suitable for machine components and subject to frictional wear
- low process temperature, allowing a wider range of substrate materials
- wide application range in textile machinery
Argor a-C
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