The effect of V2O5 addition on ferroelectric properties of Sr0.3Ba0.7Nb2O6 ceramics

被引：6

作者：

Nishiwaki, S

Takahashi, J

Kodaira, K

机构：

[1] Hokkaido Univ, Sapporo-shi

来源：

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 1995年 / 103卷 / 12期

关键词：

strontium barium niobate; vanadium addition; microstructure development; temperature dependence of permittivity; pyroelectric coefficient; internal stress;

D O I：

10.2109/jcersj.103.1246

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：

Sr0.3Ba0.7Nb2O6 (SBN30) compacts with 1 mol% V2O5 addition were fabricated at relatively lower temperatures by liquid phase sintering. A considerable elongation and coarsening of grains were observed after prolonged sintering at 1200 degrees C. The ferroelectric properties were improved by the addition of V2O5: sharpening of the dielectric peak and shift in Curie temperature from 175 to 225 degrees C. The modified ferroelectric properties might be attributed to decrease in the internal stress and compositional fluctuation with coarsening of grains. The pyroelectric coefficient of V2O5-added compacts (1200 degrees C, 14h) at room temperature was 8.0 x 10(-5) C/m(2) . K.

引用

页码：1246 / 1250

页数：5

共 23 条

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