dianoir® is the ta-C DLC coating specially designed to meet the highest aesthetic and technical requirements of the watchmaking and jewellery industry. The anthracite-black colour is an optimal prerequisite for aesthetic applications and the hardness of 4500 HV guarantees high wear resistance even under harsh environmental conditions.
dianoir®
Characteristics
Advantages
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| VDI abbreviation | ta-C |
| Process | PVD Arc |
| Structure | Amorphous |
| sp3 fraction [%] | 70 |
| Color | black-grey |
| Thickness | 1 µm |
| Max. operating temperature [°C] | 500 |
| Hardness [GPa] | 44 |
| Friction coefficient | 0.1 |
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® is produced with a deposition system for ta-C DLC coatings patented by Argor-Aljba. The main advantages are:
- high wear and corrosion resistance
- uniform anthracite-black colouring
- non-toxic process and biological compatibility are optimal properties for the use of dianoir® in contact with the human skin
- special intermediate layer for perfect adhesion
dianoir®
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