Journal of Applied Science and Engineering

Published by Tamkang University Press


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Hong-Wen Wang1 and Syh-Yuh Cheng2

1Department of Chemistry Chung-Yuan Christian University Chung-Li, 320, Taiwan
2Materials Research Laboratories, ITRI Chu-Tung, Hsinchu, Taiwan


Received: June 23, 2000
Accepted: August 9, 2000
Publication Date: December 1, 2000

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A ferroelectric heater under A.C. field was demonstrated by using lead zirconate titanate and barium titanate ceramics. The temperature of the ceramics was increased from room temperature to its curie temperature of phase transition under an A.C. field. The heating characteristics greatly depend on the compositions of ceramics. It is proposed that the heating behavior is related to the domain switching under A.C. field. A prototype heating device was constructed using these ceramics.

Keywords: Ferroelectric heater, PZT, Barium Titanate, domain switching, A.C. field


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