Influence of hydrothermal degradation on wear behaviour of zirconia tetragonal polycristals doped with 3% molar of yttria
Tipus de documentArticle
Condicions d'accésAccés restringit per política de l'editorial
The goal of this work is to analyse the influence of hydrothermal degradation on wear behaviour on samples of tetragonal polycrystals doped with 3% molar of yttria in air under dry sliding conditions on samples artificially aged at 0, 10 and 60 hours in autoclave at 131°C. The samples were prepared by conventional compaction and sintering at 1450°C. The study was carried out by performing scratch tests and ball on disc experiments against 3Y-TZP balls. At low loads the damage was not distinctive, but under high loads the damage mechanisms were different suggesting a clear effect of degradation after long ageing times. On the contrary, in samples degraded during 60 hours the wear rates in both experiments were initially higher than on non-aged specimens and decreased with increasing load and/or sliding distance.
CitacióChitapalli, R. [et al.]. Influence of hydrothermal degradation on wear behaviour of zirconia tetragonal polycristals doped with 3% molar of yttria. "Anales de mecánica de la fractura", 2009, vol. 26, p. 86-91.
|Influence of hydrothermal degradation....pdf||2.446Mb||Accés restringit|