Kinetic electrocaloric effect and giant net cooling of lead-free ferroelectric refrigerants

被引：51

作者：

Bai, Yang ^{[1
,2
]}

Zheng, Guang-Ping ^{[1
]}

Shi, San-Qiang ^{[1
]}

机构：

[1] Hong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China

[2] Univ Sci & Technol Beijing, Key Lab Environm Fracture, Minist Educ, Beijing 100083, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2010年 / 108卷 / 10期

基金：

美国国家科学基金会;

关键词：

HYSTERESIS; CERAMICS; MODEL;

D O I：

10.1063/1.3511342

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The electrocaloric effect of BaTiO3 multilayer thick film structure was investigated by direct measurement using differential scanning calorimeter. The samples show a giant electrocaloric effect of 0.89 J/g under E=176 kV/cm, which also depends on the varying rate of applied field, following a general power-law relation. Based on the large net-cooling (0.37 J/g) resulting from the difference in the varying rates of rising and falling fields, the kinetic electrocaloric effect provides a solution for the design of refrigeration cycle in ferroelectric microrefrigerator. (C) 2010 American Institute of Physics. [doi:10.1063/1.3511342]

引用

页数：4

共 22 条

[1] Direct measurement of giant electrocaloric effect in BaTiO3 multilayer thick film structure beyond theoretical prediction [J].

Bai, Yang ;

Zheng, Guangping ;

Shi, Sanqiang .

APPLIED PHYSICS LETTERS, 2010, 96 (19)

[2] Giant electrocaloric effect in lead-free thin film of strontium bismuth tantalite [J].

Chen, Hao ;

Ren, Tian-Ling ;

Wu, Xiao-Ming ;

Yang, Yi ;

Liu, Li-Tian .

APPLIED PHYSICS LETTERS, 2009, 94 (18)

[3] Investigation of the electrocaloric effect in a PbMg2/3Nb1/3O3-PbTiO3 relaxor thin film [J].

Correia, T. M. ;

Young, J. S. ;

Whatmore, R. W. ;

Scott, J. F. ;

Mathur, N. D. ;

Zhang, Q. .

APPLIED PHYSICS LETTERS, 2009, 95 (18)

[4] Electrocaloric devices based on thin-film heat switches [J].

Epstein, Richard I. ;

Malloy, Kevin J. .

JOURNAL OF APPLIED PHYSICS, 2009, 106 (06)

[5] Ferroelectric electrocaloric conversion in 0.75(PbMg1/3Nb2/3O3)-0.25(PbTiO3) ceramics [J].

Guyomar, Daniel ;

Sebald, Gael ;

Guiffard, Benoit ;

Seveyrat, Laurence .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2006, 39 (20) :4491-4496

[6] Electrocaloric characteristics in reactive sintered 0.87 Pb(Mg1/3Nb2/3)O3-0.13 PbTiO3 [J].

Hagberg, Juha ;

Uusimaki, Antti ;

Jantunen, Heli .

APPLIED PHYSICS LETTERS, 2008, 92 (13)

[7] Direct and indirect electrocaloric measurements using multilayer capacitors [J].

Kar-Narayan, S. ;

Mathur, N. D. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2010, 43 (03)

[8] Huge electrocaloric effect in Langmuir-Blodgett ferroelectric polymer thin films [J].

Liu, P. F. ;

Wang, J. L. ;

Meng, X. J. ;

Yang, J. ;

Dkhil, B. ;

Chu, J. H. .

NEW JOURNAL OF PHYSICS, 2010, 12

[9] Electrocaloric Materials for Solid-State Refrigeration [J].

Lu, Sheng-Guo ;

Zhang, Qiming .

ADVANCED MATERIALS, 2009, 21 (19) :1983-1987

[10]

MISCHENKO A, 2004, Patent No. 04262309

← 1 2 3 →