Nonadiabatic direct measurement electrocaloric effect in lead-free Ba,Ca(Zr,Ti)O3 ceramics

被引：80

作者：

Wang, Jinfei ^{[1
]}

Yang, Tongqing ^{[1
]}

Chen, Shengchen ^{[1
]}

Li, Gang ^{[1
]}

Zhang, Qingfeng ^{[1
]}

Yao, Xi ^{[1
]}

机构：

[1] Tongji Univ, Funct Mat Res Lab, Shanghai 200092, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2013年 / 550卷

关键词：

Nonadiabat direct measured; Electrocaloric; Lead-free; Remove applied electric; FIELD;

D O I：

10.1016/j.jallcom.2012.10.144

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Electrocaloric effect (ECE) of lead-free Ba,Ca(Zr,Ti)O-3 ceramics was researched. The Ba,Ca(Zr,Ti)O-3 ceramics is with the characteristics of slimmer P-E hysteresis loops, and direct thermometry displays an electrocaloric effect over a wide range temperatures from room temperature to 105 degrees C. The temperature change Delta T increased with increasing of applied electric field and measurement temperature, and reached the maximum of similar to 0.6 K at 85 degrees C with an applied electric field of 40 kV/cm. For comparison, indirect theoretical calculation was given by, thermodynamic equation analysis of P-E hysteresis loops with different temperature. The magnitude of indirect calculation Delta T was about 2.33 K for BCZT samples. We also compare the difference of two results. The direct measurement was carried in non-adiabatic, so the experimental data Delta T was smaller than the theoretical value. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.

引用

页码：561 / 563

页数：3

共 29 条

[1] Ackay G., 2008, J APPL PHYS, V103
[2] ACKAY G, 2007, APPL PHYS LETT, V90
[3] Bai Y., 2010, J APPL PHYS LETT, V108
[4] Direct measurement of giant electrocaloric effect in BaTiO3 multilayer thick film structure beyond theoretical prediction
Bai, Yang
Zheng, Guangping
Shi, Sanqiang
[J]. APPLIED PHYSICS LETTERS, 2010, 96 (19)
[5] Giant electrocaloric effect in lead-free thin film of strontium bismuth tantalite
Chen, Hao
Ren, Tian-Ling
Wu, Xiao-Ming
Yang, Yi
Liu, Li-Tian
[J]. APPLIED PHYSICS LETTERS, 2009, 94 (18)
[6] Investigation of the electrocaloric effect in a PbMg2/3Nb1/3O3-PbTiO3 relaxor thin film
Correia, T. M.
Young, J. S.
Whatmore, R. W.
Scott, J. F.
Mathur, N. D.
Zhang, Q.
[J]. APPLIED PHYSICS LETTERS, 2009, 95 (18)
[7] Electrocaloric effect and anomalous conductivity of the ferroelectric NH4HSO4
Flerov, I. N.
Mikhaleva, E. A.
[J]. PHYSICS OF THE SOLID STATE, 2008, 50 (03) : 478 - 484
[8] Ferroelectric electrocaloric conversion in 0.75(PbMg1/3Nb2/3O3)-0.25(PbTiO3) ceramics
Guyomar, Daniel
Sebald, Gael
Guiffard, Benoit
Seveyrat, Laurence
[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2006, 39 (20) : 4491 - 4496
[9] Electrocaloric characteristics in reactive sintered 0.87 Pb(Mg1/3Nb2/3)O3-0.13 PbTiO3
Hagberg, Juha
Uusimaki, Antti
Jantunen, Heli
[J]. APPLIED PHYSICS LETTERS, 2008, 92 (13)
[10] Effect of domain walls on the electrocaloric properties of Pb(Zr1-x,Tix)O3 thin films
Karthik, J.
Martin, L. W.
[J]. APPLIED PHYSICS LETTERS, 2011, 99 (03)

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