Electrocaloric Study Effect in the Relaxor Ferroelectric Ceramic 0.9(0.75PMN-0.25PT)-0.1PS

被引：15

作者：

Kriaa, Issa ^{[1
]}

Maalej, Ahmed ^{[1
]}

Khemakhem, Hamadi ^{[1
]}

机构：

[1] Univ Sfax, Fac Sci Sfax, Lab Multifunct Mat & Applicat LR16ES18, Rd Soukra Km 3-5,BP 802, Sfax 3018, Tunisia

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2017年 / 46卷 / 04期

关键词：

Ferroelectric; relaxor; pyroelectric; electrocaloric;

D O I：

10.1007/s11664-017-5336-9

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This work is meant to study the electrocaloric effect in 0.9(0.75Pb(Mg-1/3 Nb-2/3)O-3-0.25PbTiO(3))-0.1PbSnO(3) (0.9(PMN-PT)-0.1PS) ferroelectric ceramics. The adiabatic temperature change (Delta T) of 0.9(PMN-PT)-0.1PS ceramic, due to the application or withdrawal of an electric field, were calculated through the thermodynamic relation. The temperature change increases with an increase in the applied electric field and reaches a maximum of 0.66 K in a 30 kV/cm electric field shift near the morphotropic phase boundary transition, ferroelectric-paraelectric, at 373 K; that is, the electrocaloric coefficient is 0.220 x 10(-6) m K/V, this obtained value is at high temperature, which limits its potential as the next generation solid state cooling devices.

引用

页码：2529 / 2532

页数：4

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