2010•Inorganic MaterialsRequires access
Effect of Al2O3 on the properties of nanocrystalline ZrO2 + 3 mol % Y2O3 powder
Elena V. Dudnik, A. V. Shevchenko, Alexey K. Ruban, Viktor P. Red'ko, Lidia M. Lopato
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Abstract
We have studied the properties of nanocrystalline ZrO 2 〈3 mol % Y 2 O 3 〉 and 90 wt % ZrO 2 〈3 mol % Y 2 O 3 〉-10 wt % Al 2 O 3 powders prepared via hydrothermal treatment of coprecipitated hydroxides at 210°C. The results demonstrate that Al 2 O 3 doping raises the phase transition temperatures of the metastable low-temperature ZrO 2 polymorphs and that the structural transformations of the ZrO 2 and Al 2 O 3 in the doped material inhibit each other.