Ba(Ti1-xZrx)O3 (x=0,05 and 0,08) ceramics obtained from nanometric powders:: Ferroelectric and dielectric properties

被引：10
作者：
Antonelli, E. [1 ]
Silva, R. S. [1 ]
Hernandes, A. C. [1 ]
机构：
[1] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil
来源：
FERROELECTRICS | 2006年 / 334卷
关键词：
ceramics; ferroelectricity; BaTiZrO3;
D O I：
10.1080/00150190600692591
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have used the Pechini's technique for synthesizing nanometric powders of Ba(Ti1-xZrx)O-3 (x = 0.05 and 0.08), named BTZ5 and BTZ8(,) respectively. The calcined powders at 750 degrees C/2 h presented single crystalline phase and showed average particle size of about 50 nm. The BTZ sintered ceramics presented density close to 95 +/- 1% and an average grain size of 1 mu m. The samples showed a broader peak in the permittivity and decreasing in the maximum dielectric constant. We also observed a decrease in Curie temperature with the increased of the Zr concentration. The remnant polarization was also studied and presented dependence with the grain size.
引用
收藏
页码：75 / 82
页数：8
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