Tuning of electrocaloric performance in (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 by induced relaxor-like behavior

被引：15

作者：

Weyland, Florian ^{[1
]}

Hayati, Raziye ^{[2
]}

Novak, Nikola ^{[3
]}

机构：

[1] Tech Univ Darmstadt, Inst Mat Sci, D-64287 Darmstadt, Germany

[2] Univ Yasuj, Dept Mat Engn, Yasuj 7591874831, Iran

[3] Jozef Stefan Inst, Jamova Cesta 39, Ljubljana 1000, Slovenia

来源：

CERAMICS INTERNATIONAL | 2019年 / 45卷 / 09期

关键词：

Electrical properties; Ferroelectric properties; BaTiO3 and titanates; Perovskites; CERAMICS;

D O I：

10.1016/j.ceramint.2019.03.006

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：

Induced relaxor-like behavior is reported by addition of a sintering additive to the (Ba0.83Ca0.13)(Zr0.1Ti0.9)O-3 solid solution. The effect of Bi2O3 sinter additive on microstructure is determined. The phase transition behavior is highlighted by dielectric permittivity measurements. The electrocaloric temperature change is directly measured and comparison with literature data is provided on basis of the material related cooling power. Addition of Bi2O3 drastically increases the temperature stability and an ultra-wide temperature range of over 100 K is achieved. The findings path a way to tune electrocaloric materials for optimization of properties for solid-state coolers based on the electrocaloric effect.

引用

页码：11408 / 11412

页数：5

共 32 条

[1] THE INFLUENCE OF MICROSTRUCTURE ON THE PROPERTIES OF FERROELECTRIC CERAMICS [J].