Effects of cobalt dopant on microstructure and electrical properties of Bi<inf>0.5</inf>Na<inf>0.5</inf>TiO<inf>3</inf> ceramics

© 2018, Chiang Mai University. All rights reserved. Co-doped (Bi0.5Na0.5)TiO3 ceramics with varied doping concentration of 0, 0.005, 0.01, 0.02 and 0.03 mol fraction were prepared by conventional solid state reaction method. The firing condition used was 1050 °C for 2 h. X-ray diffraction results sh...

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Main Authors: Suwapitcha Buntham, Paitoon Boonsong, Panupong Jaiban, Nittaya Keawprak, Anucha Watcharapasorn
Format: Journal
Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/62572
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spelling th-cmuir.6653943832-625722018-11-29T07:57:06Z Effects of cobalt dopant on microstructure and electrical properties of Bi<inf>0.5</inf>Na<inf>0.5</inf>TiO<inf>3</inf> ceramics Suwapitcha Buntham Paitoon Boonsong Panupong Jaiban Nittaya Keawprak Anucha Watcharapasorn Biochemistry, Genetics and Molecular Biology Chemistry Materials Science Mathematics Physics and Astronomy © 2018, Chiang Mai University. All rights reserved. Co-doped (Bi0.5Na0.5)TiO3 ceramics with varied doping concentration of 0, 0.005, 0.01, 0.02 and 0.03 mol fraction were prepared by conventional solid state reaction method. The firing condition used was 1050 °C for 2 h. X-ray diffraction results showed that all produced ceramics were single phase with a rhombohedral perovskite structure. Due to the replacement of Ti4+ions with Co2+ at B-site, there was a slight shift of X-ray diffraction pattern to the left. SEM micrographs of the ceramics indicated that a small amount of Co addition could eliminate pores and improved densification. However, above 0.01 Co mol fraction, excessive grain growth occurred and large pores were again observed. The dielectric constant and piezoelectric coefficient reached maximum values of 670 and 105 pC/N, respectively, in the sample doped with 0.01 Co mol fraction. Ferroelectric characteristics were also found to increase with increasing dopant concentration. 2018-11-29T07:32:41Z 2018-11-29T07:32:41Z 2018-09-01 Journal 01252526 2-s2.0-85056405706 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85056405706&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/62572
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Biochemistry, Genetics and Molecular Biology
Chemistry
Materials Science
Mathematics
Physics and Astronomy
spellingShingle Biochemistry, Genetics and Molecular Biology
Chemistry
Materials Science
Mathematics
Physics and Astronomy
Suwapitcha Buntham
Paitoon Boonsong
Panupong Jaiban
Nittaya Keawprak
Anucha Watcharapasorn
Effects of cobalt dopant on microstructure and electrical properties of Bi<inf>0.5</inf>Na<inf>0.5</inf>TiO<inf>3</inf> ceramics
description © 2018, Chiang Mai University. All rights reserved. Co-doped (Bi0.5Na0.5)TiO3 ceramics with varied doping concentration of 0, 0.005, 0.01, 0.02 and 0.03 mol fraction were prepared by conventional solid state reaction method. The firing condition used was 1050 °C for 2 h. X-ray diffraction results showed that all produced ceramics were single phase with a rhombohedral perovskite structure. Due to the replacement of Ti4+ions with Co2+ at B-site, there was a slight shift of X-ray diffraction pattern to the left. SEM micrographs of the ceramics indicated that a small amount of Co addition could eliminate pores and improved densification. However, above 0.01 Co mol fraction, excessive grain growth occurred and large pores were again observed. The dielectric constant and piezoelectric coefficient reached maximum values of 670 and 105 pC/N, respectively, in the sample doped with 0.01 Co mol fraction. Ferroelectric characteristics were also found to increase with increasing dopant concentration.
format Journal
author Suwapitcha Buntham
Paitoon Boonsong
Panupong Jaiban
Nittaya Keawprak
Anucha Watcharapasorn
author_facet Suwapitcha Buntham
Paitoon Boonsong
Panupong Jaiban
Nittaya Keawprak
Anucha Watcharapasorn
author_sort Suwapitcha Buntham
title Effects of cobalt dopant on microstructure and electrical properties of Bi<inf>0.5</inf>Na<inf>0.5</inf>TiO<inf>3</inf> ceramics
title_short Effects of cobalt dopant on microstructure and electrical properties of Bi<inf>0.5</inf>Na<inf>0.5</inf>TiO<inf>3</inf> ceramics
title_full Effects of cobalt dopant on microstructure and electrical properties of Bi<inf>0.5</inf>Na<inf>0.5</inf>TiO<inf>3</inf> ceramics
title_fullStr Effects of cobalt dopant on microstructure and electrical properties of Bi<inf>0.5</inf>Na<inf>0.5</inf>TiO<inf>3</inf> ceramics
title_full_unstemmed Effects of cobalt dopant on microstructure and electrical properties of Bi<inf>0.5</inf>Na<inf>0.5</inf>TiO<inf>3</inf> ceramics
title_sort effects of cobalt dopant on microstructure and electrical properties of bi<inf>0.5</inf>na<inf>0.5</inf>tio<inf>3</inf> ceramics
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85056405706&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/62572
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