Laser decoration of precious metals

  • V. P. Veiko
  • E. A. Vlasova
  • A. S. Krivonosov
  • M. K. Moskvin
  • G. V. Odintsova
Article
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Abstract

A technique for the laser coloration of precious metals is described that is based on the oxidation of a titanium film deposited on the surface of a metal. When laser radiation acts on the film, it is heated and oxidizes. Depending on the radiation parameters, the resulting oxide films have different thicknesses and, due to light interference, they acquire different colors. The visible color of the surface depends on the angle of viewing after imaging. The aim of this work is to identify the color palette of a gold plate’s surface with a thin film of titanium deposited on it. The titanium film is oxidized via fiber laser irradiation with a wavelength of 1.064 μm. Samples of color palettes are examined spectrophotometrically, and the chemical and mechanical stability of the resulting oxide coatings are tested.

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Copyright information

© Allerton Press, Inc. 2017

Authors and Affiliations

  • V. P. Veiko
    • 1
  • E. A. Vlasova
    • 1
  • A. S. Krivonosov
    • 1
  • M. K. Moskvin
    • 1
  • G. V. Odintsova
    • 1
  1. 1.National Research University of Informational TechnologiesMechanics, and Optics (ITMO)St. PetersburgRussia

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