Evaluation and statistical analysis of dielectric permittivity of BaTiO3 powders

被引：51

作者：

Tsurumi, T ^{[1
]}

Sekine, T ^{[1
]}

Kakemoto, H ^{[1
]}

Hoshina, T ^{[1
]}

Nam, SM ^{[1
]}

Yasuno, H ^{[1
]}

Wada, S ^{[1
]}

机构：

[1] Tokyo Inst Technol, Grad Sch Sci & Engn, Tokyo 1528552, Japan

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2006年 / 89卷 / 04期

关键词：

D O I：

10.1111/j.1551-2916.2005.00905.x

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：

A slurry method was used to determine the dielectric permittivity (epsilon(r)) of BaTiO3 powders with different characteristics, such as tetragonality (c/a ratio), density, particle size, and specific surface area. The epsilon(r) of powders highly depended on their characteristics. In order to extract the effect of each characteristic, a statistical analysis was carried out to represent the epsilon(r) of powders with an empirical formula. A fairly good agreement was obtained between observed data and those estimated from the formula. The epsilon(r) decreased with particle size because of the size effect of BaTiO3 and high tetragonality and density was essential to obtain high epsilon(r) of powders.

引用

页码：1337 / 1341

页数：5

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