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1130 |
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Flame spray parameter optimization to manufacture glaze coatings onto thermally sensitive substrates |
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Ghislain Montavon / SPCTS - UMR CNRS 6638, Faculty of Sciences, University of Limoges, France Aure Arcondeguy* / SPCTS - UMR CNRS 6638, Faculty of Sciences, University of Limoges, France Gilles Gasgnier/ IMERYS Tableware France, France Bernard Pateyron/ UMR CNRS 6638, Faculty of Sciences, University of Limoges, France Alain Grimaud/ UMR CNRS 6638, Faculty of Sciences, University of Limoges, France Alain Denoirjean/ UMR CNRS 6638, Faculty of Sciences, University of Limoges, France Christophe Huguet/ IMERYS Tableware France, France |
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Glazes are attractive materials as they can be applied onto metallic or ceramic substrates to confer on them specific properties. They find numerous applications, from art ornamenting to protection against corrosion. Conventional process (vitreous glazing) requires a high temperature treatment (up to 1400 °C) to fuse the glazes after their application on the surface to be covered. This treatment cannot be applied onto heat-sensitive substrates without severe degradation. Previous studies showed that manufacturing glaze layers by flame spraying prevents the substrate from thermal degradation. The coating formation mechanisms are different from the ones encountered with crystallized ceramic materials: the high surface tension of glazes prevents the particles from being totally spread (i.e., |