Molten salt synthesis of complex perovskite-related dielectric oxides

Thirumal M.; Ganguli AK.; Jain P.

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Molten salt synthesis of complex perovskite-related dielectric oxides

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Perovskite related dielectric oxides of the formula Ba(Zn1/3Nb2/3)O-3, Ba(Mg1/3Nb2/3)O-3 and Ba(Zn1/3Ta2/3)O-3 have been synthesized by the NaCl-KCl molten salt (flux) method at low temperatures of 900 degreesC for 3 or 6 h. Sintering at 1000 degreesC retained the cubic structure. Sintering at 1300 degreesC generated minor amount (similar to 10) of Ba5Nb4O15 in addition to the main cubic phase for the niobium compounds. The tantalum compounds, on the other hand, decomposed to Ba0.5TaO3, retaining a minor amount of the original cubic phase. Scanning electron micrographs show large grain size (upto 10 mum) in some of the samples obtained by the molten salt method. (C) 2001 Elsevier Science B.V. All rights reserved. References: 15

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《Materials Chemistry and Physics》 |2001年第1期|7-11|共5页
作者
Thirumal M.; Ganguli AK.; Jain P.;
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作者单位

Indian Inst Technol, Dept Chem, New Delhi 110016, India, .;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种英语
中图分类工程材料学;工程基础科学;
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Molten salt synthesis of complex perovskite-related dielectric oxides

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