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Advances in Materials Science and Engineering
Volume 2013, Article ID 858656, 6 pages
http://dx.doi.org/10.1155/2013/858656
Research Article

Electrocaloric Response of Ferroelectric Material Applicable as Electrothermal Transducer

1Mechanical Department, Engineering Faculty, Razi University, Kermanshah 6714967346, Iran
2Electrical Department, Engineering Faculty, Razi University, Kermanshah 6714967346, Iran

Received 13 May 2013; Accepted 14 August 2013

Academic Editor: Yatendra S. Chaudhary

Copyright © 2013 Saber Mohammadi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Electrocaloric response of the PMN-10PT is measured experimentally and compared with the numerical results. Based on the compatibility of the experimental and numerical results, feasibility of using ferroelectric materials as an electrothermal transducer has been investigated. In this study, electrocaloric response of three different ferroelectric capacitors (PMN-10PT, PMN-25PT, and PZN-4.5PT) under an applied periodic electric field have been investigated. Alternative switching of the electrocaloric elements with specific boundary conditions generates a directed heat flux. It can be concluded that each ferroelectric material can be used as a transducer in a special temperature range that in which it has good electrocaloric response.