Soft chemistry synthesis of the perovskite CaCu3Ti4O12

被引：16
|
作者：
Marchin, Loeic [1 ]
Guillemet-Fritsch, Sophie [1 ]
Durand, Bernard [1 ]
机构：
[1] Univ Toulouse 3, CIRIMAT, LCMIE, F-31062 Toulouse 9, France
来源：
PROGRESS IN SOLID STATE CHEMISTRY | 2008年 / 36卷 / 1-2期
关键词：
oxalates; oxides; coprecipitation; chemical synthesis; CaCu3Ti4O12; capacitor;
D O I：
10.1016/j.progsolidstchem.2007.10.001
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The perovskite CaCu3Ti4O12 (CCT) has been obtained after calcination of oxalate precursors at 900-1000 degrees C in air. Those precursors are prepared using a soft chemistry method, the coprecipitation. The oxalate powders consist of disk-like particles of 2-3 mu m diameter and 300-400 nm thickness. By varying the ratio of the initial amounts of metal chlorides, additional phases (CaTiO3, TiO2 and CuO) could be obtained besides CCT. The corresponding multiphased ceramics present improved dielectric properties. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：151 / 155
页数：5
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