Low temperature synthesis of Y3NbO7 by polymerizable complex method: Utilization of a methanol-citric acid solution of NbCl5 as a novel niobium precursor

Toru Okubo, Masato Kakihana

研究成果: Article査読

37 被引用数 (Scopus)

抄録

A modified polymerizable complex method was used to prepare pure Y3NbO7 powders at reduced temperature. To acquire a niobium-containing solution stable enough for the polymerizable complex processing, methanol was chosen to solvate NbCl5. Dissolution of NbCl5 in methanol gave a colorless transparent solution, to which citric acid (CA), yttrium carbonate and ethylene glycol (EG) were added successively to produce a transparent solution containing yttrium-CA complexes and niobium-CA complexes. The solution was heated at ∼130°C to remove excess methanol and promote esterification between CA and EG to yield a transparent polymeric resin without precipitation; this material was used subsequently as a precursor for Y3NbO7. The formation of Y3NbO7 occurred when the resin precursor was heat-treated at 500°C for 2 h in static air.

本文言語English
ページ(範囲)151-154
ページ数4
ジャーナルJournal of Alloys and Compounds
256
1-2
DOI
出版ステータスPublished - 1997 7月 5
外部発表はい

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

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