Study of the compensation mechanism of La2O3-doped BaTiO3

被引：3

作者：

Ramajo, M ^{[1
]}

Brzozowski, E ^{[1
]}

Castro, MS ^{[1
]}

机构：

[1] Univ Nacl Mar del Plata, CONICET, INTEMA, Inst Invest Ciencia & Tecnol Mat, RA-7608 Mar Del Plata, Buenos Aires, Argentina

来源：

BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO | 2004年 / 43卷 / 03期

关键词：

BaTiO3; electrical properties; ionic defects; dopants; microstructure;

D O I：

10.3989/cyv.2004.v43.i3.477

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this work, the incorporation of several concentrations of the La3+ ion into the BaTiO3 lattice was studied. It was verified that low La3+ concentrations inhibits the grain growth and produces a highly densified material. However, a delay in the sintering behavior in ceramics with high doping concentrations was observed. The La3+ donor incorporation in the BaTiO3 modified the defects structure, favored titanium vacancies formation, and stabilized a pseudocubic phase. This effect influences the dielectric properties and the cubic-tetragonal transition temperature.

引用

页码：691 / 694

页数：4

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