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Author Behera, Pallavi Suhasinee ♦ Vasanthavel, S. ♦ Ponnilavan, V. ♦ Kannan, S.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY ♦ CONCENTRATION RATIO ♦ GADOLINIUM ♦ GADOLINIUM IONS ♦ LATTICE PARAMETERS ♦ PARAMAGNETISM ♦ PHASE STABILITY ♦ PHASE TRANSFORMATIONS ♦ SILICA ♦ SILICON OXIDES ♦ SOL-GEL PROCESS ♦ STABILIZATION ♦ SYNTHESIS ♦ ZIRCONIUM OXIDES
Abstract The present study reports the effect of gadolinium (Gd{sup 3+}) in zirconia-silica (ZrO{sub 2}-SiO{sub 2}) binary oxides. The pure ZrO{sub 2}-SiO{sub 2} synthesized at 1100 °C was tetragonal. The addition of Gd{sup 3+} in the concentration range of 5%–10% resulted in the formation of t-ZrO{sub 2}, whereas higher contents of Gd{sup 3+} led to the formation of cubic ZrO{sub 2} (c-ZrO{sub 2}). The presence of Gd{sup 3+} also affected the lattice parameters of both t-ZrO{sub 2} and c-ZrO{sub 2}. Magnetic studies confirmed a steady increase in the paramagnetic behaviour with increasing content of Gd{sup 3+}. - Graphical abstract: t-ZrO{sub 2} to c-ZrO{sub 2} phase transition influenced by Gd{sup 3+} content. - Highlights: • Sol-gel synthesis of Gd{sup 3+} added SiO{sub 2}-ZrO{sub 2} binary oxides. • Significant role of Gd{sup 3+} content in the tetragonal and cubic stabilization of ZrO{sub 2}. • Phase stability of either tetragonal or cubic stabilization till 1100 °C. • Gd{sup 3+} additions ensured additional paramagnetic behaviour in SiO{sub 2}-ZrO{sub 2} binary oxide.
ISSN 00224596
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-05-15
Publisher Place United States
Journal Journal of Solid State Chemistry
Volume Number 225


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