TY - JOUR
T1 - Effects of grain size and ceria addition on ageing behaviour and tribological properties of Y-TZP ceramics
AU - Jansen, S.R.
AU - Winnubst, A.J.A.
AU - He, Y.J.
AU - Verweij, H.
AU - van der Varst, P.G.Th.
AU - de With, G.
PY - 1998
Y1 - 1998
N2 - The influence was investigated of ceria addition and the grain size on ageing and wear behaviour of Y-TZP ceramics. Two types of ceramics were studied: ZY5 (95 mole% ZrO2 and 5 mole% YO1·5) and ZY4Ce4 (92 mole% ZrO2, 4 mole% YO1·5, and 4 mole%CeO2). Each ceramic was sintered with grain sizes of 0·18 μm (95% dense) or 0·5 μm (98% dense). Only the ZY5 ceramic with a grain size of 0·5 μm showed degradation to monoclinic zirconia (= ageing) after a treatment in water at 180°C. This ceramic was also the only one in which a phase transformation was observed after wear tests in water for a pin (SiC) on plate test configuration. However, this transformation was found not to affect the wear rate. Wear mechanisms were investigated for testing in dry nitrogen and water environment.
AB - The influence was investigated of ceria addition and the grain size on ageing and wear behaviour of Y-TZP ceramics. Two types of ceramics were studied: ZY5 (95 mole% ZrO2 and 5 mole% YO1·5) and ZY4Ce4 (92 mole% ZrO2, 4 mole% YO1·5, and 4 mole%CeO2). Each ceramic was sintered with grain sizes of 0·18 μm (95% dense) or 0·5 μm (98% dense). Only the ZY5 ceramic with a grain size of 0·5 μm showed degradation to monoclinic zirconia (= ageing) after a treatment in water at 180°C. This ceramic was also the only one in which a phase transformation was observed after wear tests in water for a pin (SiC) on plate test configuration. However, this transformation was found not to affect the wear rate. Wear mechanisms were investigated for testing in dry nitrogen and water environment.
U2 - 10.1016/S0955-2219(97)00153-2
DO - 10.1016/S0955-2219(97)00153-2
M3 - Article
SN - 0955-2219
VL - 18
SP - 557
EP - 563
JO - Journal of the European Ceramic Society
JF - Journal of the European Ceramic Society
IS - 5
ER -