Flame-Sprayed Glaze Coatings: Effects of Operating Parameters and Feedstock Characteristics Onto Coating Structures

Aure Arcondeguy (1) , Alain Grimaud (2) , Alain Denoirjean (2) , G. Gasgnier (3) , C. Huguet (3) , Bernard Pateyron (2) , Ghislain Montavon (1)

1 SPCTS - Science des Procédés Céramiques et de Traitements de Surface
2 Axe 2 : procédés de traitements de surface
3 IMERYS - IMERYS TABLEWARE FRANCE

Many substrates do not sustain the conventional glazing process (i.e., vitreous glazing) due to the relatively high temperature required by this treatment (i.e., up to 1400 C in some cases) to fuse glazes after their application on the surface to be covered. Flame spraying could appear as a solution to circumvent this limitation and to avoid thermal decomposition of substrates. This contribution describes some structural attributes of glaze coatings manufactured by flame spraying. It also discusses the influence of the feedstock powder morphology and some of its physical properties on coating characteristics.

Mots clés: feedstock architecture; feedstock composition; flame spraying; glaze; operating parameters; thermally sensitive substrate; thick layer

Aure Arcondeguy, Alain Grimaud, Alain Denoirjean, G. Gasgnier, C. Huguet, et al.. Flame-Sprayed Glaze Coatings: Effects of Operating Parameters and Feedstock Characteristics Onto Coating Structures. Journal of Thermal Spray Technology, 2007, 16, pp.978-990. ⟨10.1007/s11666-007-9130-8⟩. ⟨hal-00203147⟩