Dielectric-state analysis in solid-solution Pb(Yb1/2Ta1/2)O3-Pb(Lu1/2Nb1/2)O3

被引：28
|
作者：
Park, Y
Cho, K
机构：
[1] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England
[2] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2000年 / 83卷 / 01期
关键词：
D O I：
10.1111/j.1151-2916.2000.tb01161.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：
The structure and temperature dependence of complex lead perovskite dielectrics were investigated for the system (1 - x)Pb(Yb1/2Ta1/2)O-3-xPb(Lu1/2Nb1/2)O-3. Superlattice reflections for the compositions 0.8 < x < 1.0 were observed by X-ray diffractometry, and the temperature-composition dielectric-state diagram was determined. In the present study, the disordered middle composition, with 0.2 < x < 0.8, showed a diffuse paraelectric-ferroelectric phase transition, whereas the ordered end compositions, with 0 less than or equal to x < 0.2 and 0.8 < x less than or equal to 1,0, revealed successive sharp paraelectric-antiferroelectric and weak antiferroelectric-ferroelectric phase transitions. The dielectric state was confirmed by examining the variation of polarization (P) with electric field (E).
引用
收藏
页码：135 / 140
页数：6
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