首页|EFFECTS OF IRON ADDITION ON AGING BEHAVIOR OF BARIUM TITANATE CERAMICS UNDER COMPRESSIVE STRESS

EFFECTS OF IRON ADDITION ON AGING BEHAVIOR OF BARIUM TITANATE CERAMICS UNDER COMPRESSIVE STRESS

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  • Trans Tech Publications Ltd
In this study, a room temperature aging behavior of Ba(Ti_(0.99)Fe_(0.01))O_3 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(Ti_(0.99)Fe_(0.01))O_3 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(Ti_(0.99)Fe_(0.01))O_3 ceramics became constricted loops and remanant polarizations (P_r), saturated polarizations (P_s) 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.

Fe-doped BaTiO_3stressdielectric propertiesferroelectric propertiesaging behavior

Jirapa Tangsritrakul、Muangjai Unman、Piyachon Ketsuwan、Narit Triamnak、Saroj Rujirawat、Tanawadee Dechakupt、Supon Ananta、Rattikorn Yimnirun

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Department of Physics, Faculty of Science, Chiangmai University, Chiang Mai 50200, Thailand

Synchrotron Light Research Institute, Nakhon Ratchasima 30000, Thailand School of Physics, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand

School of Physics, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand

2010

10.4028/www.scientific.net/KEM.421-422.251

Key engineering materials

Key engineering materials

ISSN：1013-9826
年,卷(期)：2010.421/422
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