Novel aqueous solution route to the low-temperature synthesis of SrBi2Nb2O9 by use of water-soluble Bi and Nb complexes

Taro Asai, Emerson R. Camargo, Masato Kakihana, Minoru Osada

研究成果: Article査読

57 被引用数 (Scopus)

抄録

Powders of SrBi2Nb2O9 (SBN) were synthesized using an aqueous solution method from mixtures of all water-soluble compounds including Sr-EDTA, Bi-EDTA and Nb-citrate. Heating of a mixed aqueous solution with the molar ratio of Sr:Bi:Nb:citric acid=1:2:2:10 produced a pale-yellow gelatinous viscous matter without any precipitation, which was subsequently pyrolyzed at 300°C to give a powder precursor for SBN. The formation of a pure Perovskite ferroelectric SBN occurred when the powder precursor was heat-treated in air at temperatures higher than 650°C. A fluorite SBN formed in the 500-600°C range, which appeared to act as an intermediate phase prior to the formation of the Perovskite SBN. The environmentally beneficial aspect of the present aqueous solution route was briefly discussed.

本文言語English
ページ(範囲)113-117
ページ数5
ジャーナルJournal of Alloys and Compounds
309
1-2
DOI
出版ステータスPublished - 2000 9月 14
外部発表はい

ASJC Scopus subject areas

  • 金属および合金

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