Ferroelectric-to-paraelectric phase transition in barium titanate ceramics investigated by pyrocharge measurements

被引：11

作者：

Tura, V

Mitoseriu, L

Papusoi, C

Osaka, T

Okuyama, M

机构：

[1] Alexandru Ioan Cuza Univ, Fac Phys, Dept Elect & Magnetism, Iasi 6600, Romania

[2] Tokyo Univ Sci, Fac Sci, Dept Appl Phys, Shinjuku Ku, Tokyo 162, Japan

[3] Osaka Univ, Fac Engn Sci, Dept Elect Engn, Toyonaka, Osaka 560, Japan

来源：

JOURNAL OF ELECTROCERAMICS | 1998年 / 2卷 / 03期

关键词：

D O I：

10.1023/A:1009970731960

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：

Temperature dependencies of the pyrocharge were recorded in view of investigating the ferroelectric-to-paraelectric phase transition in barium titanate ceramics with average grain sizes between 0.5 mu m and 20 mu m. The transition temperature decreased with decreasing the grain size. The relatively small shift of the Curie temperature detected in these pyrocharge experiments suggests that internal stresses are the main cause of the observed grain size effects.

引用

页码：163 / 169

页数：7

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