Coatings
| Coatings in the watch industry, jewellery and luxury goods |
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Gold plating |
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n |
Many galvanic coatings (gold, silver, rhodium, nickel…) |
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n |
PVD coatings (Physical Vapour Deposition) |
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n |
ADLC |
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Anodic oxydation (aluminium, titanium) |
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n |
Zapons and lacquers |
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n |
Antireflexion coatings |
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n |
Phosphorescent layers |
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n |
Diffusion treatment (carbon or nitrogen diffusion in stainless steels) |
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Gold on brass |
| Test applied to coatings |
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n |
Thickness measurements |
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n |
Adhesion |
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n |
Assay, composition |
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n |
Micro or Nano Hardness |
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n |
Roughness |
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n |
Corrosion tests (Salt spray, Kesternich, synthetic sweat,…) |
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n |
Wear test |
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n |
Colorimetry |
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n |
UV light test |
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n |
Optical measurements for antireflexion coatings |
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| PVD Tin coating + gold |
Adsorbance vs wavelenght for sapphire crystals with and without antireflexion coating |
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