Effects of cobalt doping on nonlinearity of zinc oxide

Effects of cobalt doping on nonlinearity of zinc oxide

The microstructures and electrical properties of ZnO-Bi2O3-CoO (ZBC), ZnO-Bi2O3(ZB) and ZnO-CoO (ZC) ceramics were investigated. Cobalt oxide addition could reduce bismuth loss at high sintering temperature. The same amount of cobalt within ZnO grains was found in both specimens, ZBC and ZC, suggest...

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Main Authors: W. Onreabroy, N. Sirikulrat
Format: Journal
Published: 2018
Subjects:
Materials Science
Physics and Astronomy
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=33846240535&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/61746
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-617462018-09-11T09:02:09Z Effects of cobalt doping on nonlinearity of zinc oxide W. Onreabroy N. Sirikulrat Materials Science Physics and Astronomy The microstructures and electrical properties of ZnO-Bi2O3-CoO (ZBC), ZnO-Bi2O3(ZB) and ZnO-CoO (ZC) ceramics were investigated. Cobalt oxide addition could reduce bismuth loss at high sintering temperature. The same amount of cobalt within ZnO grains was found in both specimens, ZBC and ZC, suggesting that bismuth had no effect on the dissolution of cobalt in ZnO and cobalt substitution for zinc in the ZnO structure. The highest nonlinear coefficient of about 19 was found in the ZBC varistor sintered at 1000-1100 °C. For the ZC specimens, nonlinear properties could also be obtained in this sintering temperature range. © 2006 Elsevier B.V. All rights reserved. 2018-09-11T08:58:28Z 2018-09-11T08:58:28Z 2006-06-15 Journal 09215107 2-s2.0-33846240535 10.1016/j.mseb.2006.02.058 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=33846240535&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/61746
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
W. Onreabroy
N. Sirikulrat
Effects of cobalt doping on nonlinearity of zinc oxide
description The microstructures and electrical properties of ZnO-Bi2O3-CoO (ZBC), ZnO-Bi2O3(ZB) and ZnO-CoO (ZC) ceramics were investigated. Cobalt oxide addition could reduce bismuth loss at high sintering temperature. The same amount of cobalt within ZnO grains was found in both specimens, ZBC and ZC, suggesting that bismuth had no effect on the dissolution of cobalt in ZnO and cobalt substitution for zinc in the ZnO structure. The highest nonlinear coefficient of about 19 was found in the ZBC varistor sintered at 1000-1100 °C. For the ZC specimens, nonlinear properties could also be obtained in this sintering temperature range. © 2006 Elsevier B.V. All rights reserved.
format Journal
author W. Onreabroy
N. Sirikulrat
author_facet W. Onreabroy
N. Sirikulrat
author_sort W. Onreabroy
title Effects of cobalt doping on nonlinearity of zinc oxide
title_short Effects of cobalt doping on nonlinearity of zinc oxide
title_full Effects of cobalt doping on nonlinearity of zinc oxide
title_fullStr Effects of cobalt doping on nonlinearity of zinc oxide
title_full_unstemmed Effects of cobalt doping on nonlinearity of zinc oxide
title_sort effects of cobalt doping on nonlinearity of zinc oxide
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=33846240535&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/61746
_version_ 1681425678023524352

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