Synthesis, characterization, and dielectric properties of Ba(Ti1-xSnx)O3 nanopowders and ceramics

被引：30

作者：

Du, Fengtao ^{[1
]}

Cui, Bin ^{[1
]}

Cheng, Hualei ^{[1
]}

Niu, Ruiyuan ^{[1
]}

Chang, Zhuguo ^{[1
]}

机构：

[1] Northwest Univ, Sch Chem & Mat Sci, Shaanxi Key Lab Physicoinorgan Chem, Key Lab Synthet & Nat Funct Mol Chem,Minist Educ, Xian 710069, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2009年 / 44卷 / 09期

关键词：

Ceramics; Sol-gel chemistry; Electron microscopy; X-ray diffraction; Dielectric properties; SOL-GEL PROCESS; THIN-FILMS; BATIO3; POWDERS;

D O I：

10.1016/j.materresbull.2009.05.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We prepared Ba(Ti1-xSnx)O-3 powders and ceramics by means of the sol-gel process, with dibutyltin dilaurate as the Sn precursor. The samples were characterized by means of Fourier-transform infrared spectroscopy, X-ray diffraction, transmission electron microscopy. and scanning electron microscopy, and also determined the dielectric properties of the ceramics. The powders synthesized by means of the sol-gel process had a grain size on the nanometer scale, with the grains mainly composed of a cubic BaTiO3 phase. Sn can disperse into BaTiO3 more uniformly in the sol-gel technique using dibutyltin dilaurate as the Sn precursor. With increasing Sn concentration, the grain size of the Ba(Ti1-xSnx)O-3 ceramics increased and the maximum dielectric constant (epsilon(max)) first increased and then decreased. At a Sn concentration of 5 mol%, epsilon(max) reached its maximum value (19,235). (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1930 / 1934

页数：5

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