Physical properties and electrical aging effects in Fe<sup>3+</sup>/Nb<sup>5+</sup>hybrid-doped barium titanate ceramics

It is well known that acceptor and donor doping results in opposite ferroelectric aging effects; however, the aging effects in hybrid-doped (acceptor+donor) materials has remained mysterious. Thus, the aging behavior of dielectric and ferroelectric properties in Fe3+/Nb5+ hybrid-doped BaTiO3 ceramic...

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Main Authors: S. Prasertpalichatr, M. Unruan, T. Sareein, J. Tangsritrakul, T. Dechakupta, A. Ngamjarurojana, Y. Laosiritaworn, S. Ananta, R. Yimnirun
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Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/59670
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-596702018-09-10T03:24:20Z Physical properties and electrical aging effects in Fe<sup>3+</sup>/Nb<sup>5+</sup>hybrid-doped barium titanate ceramics S. Prasertpalichatr M. Unruan T. Sareein J. Tangsritrakul T. Dechakupta A. Ngamjarurojana Y. Laosiritaworn S. Ananta R. Yimnirun Materials Science Physics and Astronomy It is well known that acceptor and donor doping results in opposite ferroelectric aging effects; however, the aging effects in hybrid-doped (acceptor+donor) materials has remained mysterious. Thus, the aging behavior of dielectric and ferroelectric properties in Fe3+/Nb5+ hybrid-doped BaTiO3 ceramics was investigated in this study. The concentration of acceptor dopant (Fe3 +) was fixed at 1 mol%, while that of donor dopant (Nb5+) was varied from 0.5-2.0 mol%. The SEM and XRD techniques were used to study the microstructure and phase formation, respectively. The results showed that the dielectric properties of all de-aged samples decreased exponentially with time. The aged samples with 0.5 and 1.0 mol% Nb5+ obviously showed constricted hysteresis loops, while those with higher concentration of Nb5+ (1.5-2.0 mol%) showed normal hysteresis loops. The explanations based on the effects of defect dipole were discussed. Copyright © Taylor & Francis Group, LLC. 2018-09-10T03:19:09Z 2018-09-10T03:19:09Z 2009-12-01 Journal 15635112 00150193 2-s2.0-77749279867 10.1080/00150190902881314 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77749279867&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/59670
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Materials Science
Physics and Astronomy
spellingShingle Materials Science
Physics and Astronomy
S. Prasertpalichatr
M. Unruan
T. Sareein
J. Tangsritrakul
T. Dechakupta
A. Ngamjarurojana
Y. Laosiritaworn
S. Ananta
R. Yimnirun
Physical properties and electrical aging effects in Fe<sup>3+</sup>/Nb<sup>5+</sup>hybrid-doped barium titanate ceramics
description It is well known that acceptor and donor doping results in opposite ferroelectric aging effects; however, the aging effects in hybrid-doped (acceptor+donor) materials has remained mysterious. Thus, the aging behavior of dielectric and ferroelectric properties in Fe3+/Nb5+ hybrid-doped BaTiO3 ceramics was investigated in this study. The concentration of acceptor dopant (Fe3 +) was fixed at 1 mol%, while that of donor dopant (Nb5+) was varied from 0.5-2.0 mol%. The SEM and XRD techniques were used to study the microstructure and phase formation, respectively. The results showed that the dielectric properties of all de-aged samples decreased exponentially with time. The aged samples with 0.5 and 1.0 mol% Nb5+ obviously showed constricted hysteresis loops, while those with higher concentration of Nb5+ (1.5-2.0 mol%) showed normal hysteresis loops. The explanations based on the effects of defect dipole were discussed. Copyright © Taylor & Francis Group, LLC.
format Journal
author S. Prasertpalichatr
M. Unruan
T. Sareein
J. Tangsritrakul
T. Dechakupta
A. Ngamjarurojana
Y. Laosiritaworn
S. Ananta
R. Yimnirun
author_facet S. Prasertpalichatr
M. Unruan
T. Sareein
J. Tangsritrakul
T. Dechakupta
A. Ngamjarurojana
Y. Laosiritaworn
S. Ananta
R. Yimnirun
author_sort S. Prasertpalichatr
title Physical properties and electrical aging effects in Fe<sup>3+</sup>/Nb<sup>5+</sup>hybrid-doped barium titanate ceramics
title_short Physical properties and electrical aging effects in Fe<sup>3+</sup>/Nb<sup>5+</sup>hybrid-doped barium titanate ceramics
title_full Physical properties and electrical aging effects in Fe<sup>3+</sup>/Nb<sup>5+</sup>hybrid-doped barium titanate ceramics
title_fullStr Physical properties and electrical aging effects in Fe<sup>3+</sup>/Nb<sup>5+</sup>hybrid-doped barium titanate ceramics
title_full_unstemmed Physical properties and electrical aging effects in Fe<sup>3+</sup>/Nb<sup>5+</sup>hybrid-doped barium titanate ceramics
title_sort physical properties and electrical aging effects in fe<sup>3+</sup>/nb<sup>5+</sup>hybrid-doped barium titanate ceramics
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77749279867&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/59670
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