Microstructure and dielectric properties of (1-x)SrFe<inf>0.5</inf>Nb<inf>0.5</inf>O<inf>3</inf>-xBaTiO<inf>3</inf>ceramics

© 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved. (1-x)SrFe0.5Nb0.5O3-xBaTiO3((1-x)SFN-xBT) powders with x=0.00-0.50 were synthesized via a molten-salt synthesis process. All x<0.50 calcined powders exhibited pure phase perovskite after a relatively low calcination temperature of 8...

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Main Authors: Thanatep Phatungthane, Gobwute Rujijanagul
Format: Journal
Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/54254
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-542542018-09-04T10:18:05Z Microstructure and dielectric properties of (1-x)SrFe<inf>0.5</inf>Nb<inf>0.5</inf>O<inf>3</inf>-xBaTiO<inf>3</inf>ceramics Thanatep Phatungthane Gobwute Rujijanagul Chemical Engineering Materials Science © 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved. (1-x)SrFe0.5Nb0.5O3-xBaTiO3((1-x)SFN-xBT) powders with x=0.00-0.50 were synthesized via a molten-salt synthesis process. All x<0.50 calcined powders exhibited pure phase perovskite after a relatively low calcination temperature of 800 °C. Ceramics of (1-x)SFN-xBT were then fabricated from the calcined powders. Increasing BT inhibited grain growth, but produced an improvement in dielectric constant. Very high dielectric constants (εr~2.96×105at 1 kHz and 351 °C) were recorded for the x=0.25 ceramics. All ceramics displayed a strong frequency dependent dielectric, especially for the x=0.25 ceramics. The dielectric constant behaviour of the studied ceramics was related to the Maxwell-Wagner polarization mechanism. In addition, the x=0.25 ceramics exhibited a very high relative dielectric tunability (nr~76%) at room temperature. 2018-09-04T10:10:09Z 2018-09-04T10:10:09Z 2015-03-01 Journal 02728842 2-s2.0-84919474579 10.1016/j.ceramint.2014.10.132 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84919474579&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/54254
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Chemical Engineering
Materials Science
spellingShingle Chemical Engineering
Materials Science
Thanatep Phatungthane
Gobwute Rujijanagul
Microstructure and dielectric properties of (1-x)SrFe<inf>0.5</inf>Nb<inf>0.5</inf>O<inf>3</inf>-xBaTiO<inf>3</inf>ceramics
description © 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved. (1-x)SrFe0.5Nb0.5O3-xBaTiO3((1-x)SFN-xBT) powders with x=0.00-0.50 were synthesized via a molten-salt synthesis process. All x<0.50 calcined powders exhibited pure phase perovskite after a relatively low calcination temperature of 800 °C. Ceramics of (1-x)SFN-xBT were then fabricated from the calcined powders. Increasing BT inhibited grain growth, but produced an improvement in dielectric constant. Very high dielectric constants (εr~2.96×105at 1 kHz and 351 °C) were recorded for the x=0.25 ceramics. All ceramics displayed a strong frequency dependent dielectric, especially for the x=0.25 ceramics. The dielectric constant behaviour of the studied ceramics was related to the Maxwell-Wagner polarization mechanism. In addition, the x=0.25 ceramics exhibited a very high relative dielectric tunability (nr~76%) at room temperature.
format Journal
author Thanatep Phatungthane
Gobwute Rujijanagul
author_facet Thanatep Phatungthane
Gobwute Rujijanagul
author_sort Thanatep Phatungthane
title Microstructure and dielectric properties of (1-x)SrFe<inf>0.5</inf>Nb<inf>0.5</inf>O<inf>3</inf>-xBaTiO<inf>3</inf>ceramics
title_short Microstructure and dielectric properties of (1-x)SrFe<inf>0.5</inf>Nb<inf>0.5</inf>O<inf>3</inf>-xBaTiO<inf>3</inf>ceramics
title_full Microstructure and dielectric properties of (1-x)SrFe<inf>0.5</inf>Nb<inf>0.5</inf>O<inf>3</inf>-xBaTiO<inf>3</inf>ceramics
title_fullStr Microstructure and dielectric properties of (1-x)SrFe<inf>0.5</inf>Nb<inf>0.5</inf>O<inf>3</inf>-xBaTiO<inf>3</inf>ceramics
title_full_unstemmed Microstructure and dielectric properties of (1-x)SrFe<inf>0.5</inf>Nb<inf>0.5</inf>O<inf>3</inf>-xBaTiO<inf>3</inf>ceramics
title_sort microstructure and dielectric properties of (1-x)srfe<inf>0.5</inf>nb<inf>0.5</inf>o<inf>3</inf>-xbatio<inf>3</inf>ceramics
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84919474579&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/54254
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