Paper Title:
Corrosion of Glazes Coated with Functional Films in Detergent Solutions
  Abstract

The goal of this work was to establish the compatibility of mat glazes with functional films known to render the surfaces with self-cleaning or easy-to-clean properties. Glazes with wollastonite, pseudowollastonite, diopside and zircon as the main crystalline phases in the surfaces were coated with fluoropolymer as well as ceramic, sol-gel derived titania and zirconia films. The glazes were soaked in typical detergent solutions used in everyday life up to four days. The surface roughness was measured with confocal optical microscope and the surface was imaged and analyzed with SEM/EDXA. When applied on wollastonite and pseudowollastonite containing glazes the functional films readily reacted in water solutions by pitting of the surface in the vicinity of the crystals. The ceramic titania and zirconia films showed better chemical resistance on wollastonite –free glazes, while the fluoropolymer film corroded in the most alkaline environments. The results indicate that functional films could be used also on rough surfaces without markedly affecting the surface topography. However, the films should be applied only on glazes with an excellent chemical resistance.

  Info
Periodical
Edited by
P. VINCENZINI
Pages
156-161
DOI
10.4028/www.scientific.net/AST.45.156
Citation
M. Piispanen, L. Fröberg, T. Kronberg, S. Areva, L. Hupa, "Corrosion of Glazes Coated with Functional Films in Detergent Solutions", Advances in Science and Technology, Vol. 45, pp. 156-161, 2006
Online since
October 2006
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