کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1621674 | 1005750 | 2010 | 5 صفحه PDF | دانلود رایگان |

Yttria + neodymia co-stabilised tetragonal ZrO2 ceramics were developed in an attempt to improve the low temperature degradation resistance of classical Y-TZP ceramics. The influence of the partial substitution of Y3+ by Nd3+ on the phase composition, crystallography, microstructure and mechanical properties was assessed by comparison with 2Y and 3Y-TZP ceramics. Moreover, the hydrothermal stability was tested during 21 h in steam at 200 °C. Although the (Y, Nd)-TZP ceramics are not hydrothermally stable, the phase transformation is limited to the surface region of the material avoiding complete degradation as observed for Y-TZP ceramics. The improved stability is explained in terms of an expanded unit cell parameter and reduced T0 temperature.
Journal: Journal of Alloys and Compounds - Volume 495, Issue 2, 16 April 2010, Pages 556–560