Citrate route to the preparation of nanometer size (Pb, La)(Zr, Ti)O-3 oxide

被引：19

作者：

Choy, JH

Han, YS

机构：

[1] Department of Chemistry, Center for Molecular Catalysis, Seoul National University

来源：

MATERIALS LETTERS | 1997年 / 32卷 / 2-3期

关键词：

citrate route; lead zirconium titanate;

D O I：

10.1016/S0167-577X(97)00137-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Homogeneous and stoichiometric lanthanum-modified lead zirconium titanate (Pb0.92La0.08)(Zr0.65Ti0.35)O-3 (PLZT) particles with a nanometer size of 20-40 nm have been prepared by the citrate route. The solubility isotherms for individual metal-citric acid-H2O systems at 25 degrees C were calculated to predict the optimum pH condition, which was found to be 6.5 for preparing pure and stable citrate complexes. A monophasic PLZT powder consisting of monodispersive and nanometer-sized particles could be obtained by thermal decomposition of the optimally prepared citrate precursor at a considerably low temperature of 800 degrees C. Details of crystallization process and particle characteristics of the citrate-derived PLZT powder have been described along with the preliminary results on the sinterability. (C) 1997 Elsevier Science B.V.

引用

页码：209 / 215

页数：7

共 38 条

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