J. Phys. IV France 01 (1991) C7-107-C7-110
LASER GLAZING OF PLASMA-SPRAYED ZIRCONIA COATINGSD. CARRON1, L. BEYLAT1, T. PUIG2 and S. HAGEGE3
1 ETCA CREA/PS, 16 bis av. Prieur de la Côte d'Or, F-94114 Arcueil cedex, France
2 DRET SDR/G8, 26 bd. Victor, F-00460 Armées, France
3 CECM/CNRS, 15 rue Georges Urbain, F-94400 Vitry sur Seine, France
The effects of surface melting produced by a high-power continuous wave CO2 laser on the structure of a 8% yttria partially stabilized zirconia plasma-sprayed coating are reported. The influence of interaction time was studied. Shiny surfaces were produced with an important reduction of superficial porosity at 10.7 kW/cm2 and values of interaction time 12.5 to 25 ms. However a problem of surface unhomogeneity occured.
© EDP Sciences 1991