dianoir® G3, deposited at a temperature below 190ºC, is ideal for coating complex shaped components and delicate materials that cannot be coated with traditional PVD technologies. dianoir® G3 is resistant to chemical products and acidic and alkaline solvents and is hypoallergenic; it is therefore highly valued for coating watch bracelets.
dianoir® G3
Characteristics
Advantages
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| VDI abbreviation | a-C:H |
| Process | PACVD |
| Structure | Amorphous |
| sp3 fraction [%] | 40-60 |
| Color | Intense black |
| Thickness | 2-3 µm |
| Max. operating temperature [°C] | 400 |
| Hardness [GPa] | 19-24 |
| Friction coefficient | 0.12 |
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.
dianoir®G3, which is particularly suitable for watchmaking components, has the following advantages:
- excellent adhesion on brass, stainless steel and titanium alloy components
- homogeneous black color
- decorative and functional coating in one solution
- non-toxic process and biological compatibility are optimal properties for the use of dianoir®G3 in contact with the human skin
- ideal for all watch movement components that will benefit from an improvement in their tribological and decorative properties
dianoir® G3
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