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Open AccessArticle

Semitransparent Decorative Coatings Based on Optical Interference of Metallic and Dielectric Thin Films for High Temperature Applications

Applied Physics Department, University of Zaragoza, C/Pedro Cerbuna, 12, 50009 Zaragoza, Spain
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Coatings 2018, 8(5), 183; https://doi.org/10.3390/coatings8050183
Received: 12 April 2018 / Revised: 2 May 2018 / Accepted: 9 May 2018 / Published: 11 May 2018
(This article belongs to the Special Issue Applications of Optical Thin Film Coatings)
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Abstract

This paper introduces a thin film multilayer structure composed of dielectric and metallic layers that allows for a wide range of aesthetic appearances using the phenomenon of optical interference. In addition, this multilayer structure allows the reflection and transmission coefficients to be controlled independently. The application of these decorative coatings to induction stoves is also studied. The aim is to provide an attractive aesthetic appearance for the transparent glass-ceramic, and allow the visualization of blue and white lighting systems. Moreover, degradation of these decorative coatings is studied at high temperatures, so as to ensure that the coating does not change its aesthetic appearance during normal operation of the stove. It has been found to be necessary to use dielectric materials with low diffusion coefficients of oxygen, or not containing oxygen, to prevent oxidation of the metal layers when subjecting the coating to high temperatures. View Full-Text
Keywords: decorative coatings; DC pulsed magnetron sputtering; optical interference; thin films; induction cookers decorative coatings; DC pulsed magnetron sputtering; optical interference; thin films; induction cookers
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Carretero, E.; Alonso, R. Semitransparent Decorative Coatings Based on Optical Interference of Metallic and Dielectric Thin Films for High Temperature Applications. Coatings 2018, 8, 183.

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