Substrat en nacre revêtu d'une couche bleue

• Main Author: Vladislav Spassov
• Format: Patent
• Language: French
• Published: 29.09.2017
• Subjects: BRACELETS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; COINS; DIFFUSION TREATMENT OF METALLIC MATERIAL; HABERDASHERY; HUMAN NECESSITIES; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; JEWELLERY; METALLURGY; OTHER PERSONAL ADORNMENTS; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

La présente invention se rapporte à un procédé de revêtement d'un substrat (1) en nacre destiné à l'horlogerie ou à la bijouterie, ledit procédé comportant une étape de dépôt sous vide d'une couche (3) d'oxyde de tungstène. Pièce d'horlogerie ou de bijouterie comportant un s...