Publicado 4 números por año
ISSN Imprimir: 1093-3611
ISSN En Línea: 1940-4360
Indexed in
RESIDUAL STRESSES AND MICROSTRUCTURE OF PLASMA SPRAYED ZIRCONIA COATINGS
SINOPSIS
Coatings of partially stabilized zirconia with 8 wt % yttria (YPSZ) were plasma sprayed on button type substrates placed on a rotating cylindrical sample holder with given spraying conditions. By varing the sample holder rotation and the torch translation speeds, the pass thickness, the coating mean temperature and hardness varied. Any decrease of the translation and rotation speeds increased the substrate and coating mean temperature, the pass thickness and in certain cases resulted in coatings with a columnar microstructure through almost the whole coating and a much better cohesion. In this case, the stress level, determined by X-rays, was higher.
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