Physicochemical Properties of Hydrothermal Nanocrystalline ZrO2–Y2O3–CeO2 Powders
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Nanocrystalline powders in the ZrO2−Y2O3−CeO2 system were produced by hydrothermal synthesis in an alkaline environment. The powder properties were studied by differential thermal analysis, Xray diffraction, electron microscopy, petrography, and BET. A low-temperature ZrO2-based cubic solid solution crystallized in the powders in hydrothermal conditions. The specific surface area of the powders was 81−110 m2/g. The lattice parameters of the ZrO2-based solid solution increased monotonically with higher CeO2 amount. The research results are needed for the microstructural design of composites in the ZrO2−Y2O3−CeO2 system with high resistance to low-temperature ageing.
KeywordsZrO2−Y2O3−CeO2 ZrO2-based solid solution hydrothermal synthesis nanocrystalline powder F-ZrO2
The authors are grateful to V.M. Pavlikov, PhD in Chemical Sciences, for the differential thermal analysis and to L.D. Bilash for determining the powders’ specific surface area.
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