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Effects of Iron Addition on Aging Behavior of Barium Titanate Ceramics under Compressive Stress

Journal Key Engineering Materials (Volumes 421 - 422)
Volume Asian Ceramic Science for Electronics III and Electroceramics in Japan XII
Edited by Tadashi Takenaka, Hajime Haneda, Kazumi Kato, Masasuke Takata and Kazuo Shinozaki
Pages 251-254
DOI 10.4028/www.scientific.net/KEM.421-422.251
Citation Jirapa Tangsritrakul et al., 2009, Key Engineering Materials, 421-422, 251
Online since December, 2009
Authors Jirapa Tangsritrakul, Muangjai Unruan, Piyachon Ketsuwan, Narit Triamnak, Saroj Rujirawat, Tanawadee Dechakupt, Supon Ananta, Rattikorn Yimnirun
Keywords Aging Behaviour, Dielectric Properties, Fe-Doped BaTiO3, Ferroelectric Property, Stress
Abstract

In this study, a room temperature aging behavior of Ba(Ti0.99Fe0.01)O3 was investigated. It was found that the dielectric constant decreased with time and ferroelectric P-E hysteresis loops became constricted loops after aging. Moreover, the room temperature aging behavior under various stresses was also observed. It was found that the relative changes of dielectric constant with time of Ba(Ti0.99Fe0.01)O3 ceramics under stress were lower than those under the stress-free condition. For P-E hysteresis loop measurement, it can be observed that P-E hysteresis loop of Ba(Ti0.99Fe0.01)O3 ceramics became constricted loops and remanant polarizations (Pr), saturated polarizations (Ps) were decreased after aging under all stress levels. These results suggested that the applied stress may partly clamp the domain wall motion, and altered the aging behavior of the ceramics.

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