Role of Praseodymium on Zirconia Phases Stabilization

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• 作者：Anna Bonamartini Corradi ; Federica Bondioli ; and Anna Maria Ferrari
• 刊名：Chemistry of Materials
• 出版年：2001
• 出版时间：December 2001
• 年：2001
• 卷：13
• 期：12
• 页码：4550 - 4554
• 全文大小：107K
• 年卷期：v.13,no.12(December 2001)
• ISSN：1520-5002

文摘

The system zirconia-praseodymia (Pr content 0-15 mol %) has been investigated toevaluate the praseodymium solubility and its role in the zirconia phase stability. The powdershave been synthesized by coprecipitation and subsequent calcination at different temperatures (400-1000 C) for 2 h. The crystal structure of the obtained nanocrystalline (Zr, Pr)O₂ powders has been studied by X-ray diffraction. By applying the Rietveld method, thedopant effect on the zirconia phase stability was found and discrimination between thedifferent zirconia polymorphs was possible.