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Title: Effects of iron additio on aging behavior of barium titanate ceramics under compressive stress
Authors: Jirapa Tangsritrakul
Muangjai Unruan
Piyachon Ketsuwan
Narit Triamnak
Saroj Rujirawat
Tanawadee Dechakupt
Supon Ananta
Rattikorn Yimnirun
Keywords: Engineering
Materials Science
Issue Date: 8-Feb-2010
Abstract: In this study, a room temperature aging behavior of Ba(Ti 0.99Fe0.01)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(Ti 0.99Fe0.01)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(Ti0.99Fe 0.01)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. © (2010) Trans Tech Publications.
ISSN: 10139826
Appears in Collections:CMUL: Journal Articles

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