Structure and dielectric properties of Ba1-xLaxTi1-xCrxO3 ceramics

被引：12

作者：

Fukunaga, M

Li, GB

Uesu, Y

Kohn, K

机构：

[1] Waseda Univ, Dept Phys, Shinjuku Ku, Tokyo 1698555, Japan

[2] Waseda Univ, Adv Sci & Technol Res Ctr, Shinjuku Ku, Tokyo 1698555, Japan

[3] Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China

来源：

FERROELECTRICS | 2003年 / 286卷

关键词：

ferroelectrics; BaTiO3; complex perovskite; ceramics; relaxors;

D O I：

10.1080/00150190390206257

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to develop useful lead-free ferroelectric materials based on BaTiO3, Ba1-xLaxTi1-xCrxO3 ceramics were synthesized and their dielectric properties were studied. The crystal structure of Ba1-xLaxTi1-xCrxO3 changes in the sequence of tetragonal, cubic, rhombohedral and orthorhombic as x increases. Curie temperature T-C decreases largely as x increases. The samples except for x = 0.003 show broad peak of high dielectric constant with small dielectric loss. The frequency dispersion like in relaxors is observed below room temperature with x = 0.08.

引用

页码：801 / 806

页数：6

共 5 条

[1] Structural characterization of the complex perovskites Ba1-xLaxTi1-xCrxO3 [J].