Polymerized complex route to synthesis of pure Y2Ti2O7 at 750°C using yttrium-titanium mixed-metal citric acid complex

Masato Kakihana, Maria M. Milanova, Momoko Arima, Toru Okubo, Masatomo Yashima, Masahiro Yoshimura

研究成果: Article同行評審

67 引文 斯高帕斯(Scopus)

摘要

A polymerized complex technique was used to prepare high-purity pyrochlore Y2Ti2O7 powders at 750°C. Heating of a mixed solution of citric acid (CA), ethylene glycol (EG), and yttrium and titanium ions, with a molar ratio of CA:EG:Y:Ti = 5:20:1:1, at 130°C produced a yellowish transparent polymeric gel without any precipitation; this material was used subsequently as a precursor for Y2Ti2O7. Based on the results of 13C-NMR spectroscopy, it was suggested that a mixed-metal (Y,Ti)-CA3 chelate complex formed in a starting CA/EG solution. The formation of pure pyrochlore Y2Ti2O7 occurred when the precursor was heat-treated in a furnace set at 750°C in static air for 4 h.

原文English
頁(從 - 到)1673-1676
頁數4
期刊Journal of the American Ceramic Society
79
發行號6
DOIs
出版狀態Published - 1996 六月

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

指紋 深入研究「Polymerized complex route to synthesis of pure Y<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub> at 750°C using yttrium-titanium mixed-metal citric acid complex」主題。共同形成了獨特的指紋。

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