Microstructure, ferroelectric and electrocaloric effect of (Pb0.88La0.08)(Zr0.65Ti0.35)O3 ceramics doped with ZnO

被引：1
|
作者：
Yoo, Juhyun [1 ]
Kim, Youseok [1 ]
机构：
[1] Semyung Univ, Dept Elect Engn, Jechon, Chungbuk, South Korea
来源：
FERROELECTRICS | 2018年 / 524卷 / 01期
关键词：
(Pb0.88La0.08)(Zr0.65Ti0.35)O-3 ceramics; electrocaloric effect; temperature changes; electric field;
D O I：
10.1080/00150193.2018.1432816
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, in order to develop relaxor ferroelectric ceramics with large electrocaloric effect, (Pb0.88La0.08)(Zr0.65Ti0.35)O-3 ceramics were manufactured using conventional solid-state reaction method with the amount of ZnO addition. The XRD pattern of all specimens indicated general perovskite structure with secondary phase. With increasing the amount of ZnO addition, the coexistence of rhombohedral and tetragonal phases was observed. The temperature change T of specimen exhibited the tendency to increase with the amount of ZnO addition. Furthermore, at the 0.6wt% added ZnO ceramics, the optimal value of T = 0.345 degrees C in ambient temperature of 215 degrees C was appeared. It is considered that (Pb0.88La0.08)(Zr0.65Ti0.35)O-3 ceramics show the possibility of refrigeration device application.
引用
收藏
页码：148 / 155
页数：8
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