Abstract
The aim of this study is to improve suspension plasma spraying of zirconia
doped with yttria in order to offer an alternative technology to the very costly electronbeam
physical vapour deposition technique used for thermal barrier coatings in aeronautical
industries. Diverse yttria stabilized zirconia coating architectures were obtained by slightly
varying plasma jet thermophysical properties. Coatings were then submitted to isothermal
cyclic fatigue tests. All of them displayed a lifetime corresponding to yttria stablized
zirconia coatings produced by electron-beam physical vapour deposition.
Cuvinte cheie
yttria stabilized zirconia
suspension plasma spraying
electron-beam physical vapour
deposition
columnar coating
thermal cyclic fatigue
lifetime in thermal fatigue
thermomechanical
properties