Properties and intergranular phase analysis of a ZnO-CoO-Bi<inf>2</inf>O<inf>3</inf>varistor

The electrical properties, microstructures and phase content of a ZnO-CoO-Bi2O3varistor have been characterised. High-resolution TEM and selected area electron diffraction provided detailed information on the distribution and structure of the intergranular Bi-rich phase. Triple points between the Zn...

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Main Authors: W. Onreabroy, N. Sirikulrat, A. P. Brown, C. Hammond, S. J. Milne
Format: Journal
Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/61589
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-615892018-09-11T09:02:28Z Properties and intergranular phase analysis of a ZnO-CoO-Bi<inf>2</inf>O<inf>3</inf>varistor W. Onreabroy N. Sirikulrat A. P. Brown C. Hammond S. J. Milne Chemistry Materials Science Physics and Astronomy The electrical properties, microstructures and phase content of a ZnO-CoO-Bi2O3varistor have been characterised. High-resolution TEM and selected area electron diffraction provided detailed information on the distribution and structure of the intergranular Bi-rich phase. Triple points between the ZnO matrix grains contained crystallites that could be indexed to tetragonal β-Bi2O3, cubic γ-Bi2O3and δ-Bi2O3, or corresponding isostructural ZnO-Bi2O3phases. Thin-film, 1-2 nm grain boundaries were found to be amorphous, but for the first time, crystalline precipitates (with the β-Bi2O3type structure) were also detected in some thicker, 4-5 nm films. © 2005 Elsevier B.V. All rights reserved. 2018-09-11T08:55:41Z 2018-09-11T08:55:41Z 2006-01-31 Journal 01672738 2-s2.0-31544474871 10.1016/j.ssi.2005.10.032 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=31544474871&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/61589
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Chemistry
Materials Science
Physics and Astronomy
spellingShingle Chemistry
Materials Science
Physics and Astronomy
W. Onreabroy
N. Sirikulrat
A. P. Brown
C. Hammond
S. J. Milne
Properties and intergranular phase analysis of a ZnO-CoO-Bi<inf>2</inf>O<inf>3</inf>varistor
description The electrical properties, microstructures and phase content of a ZnO-CoO-Bi2O3varistor have been characterised. High-resolution TEM and selected area electron diffraction provided detailed information on the distribution and structure of the intergranular Bi-rich phase. Triple points between the ZnO matrix grains contained crystallites that could be indexed to tetragonal β-Bi2O3, cubic γ-Bi2O3and δ-Bi2O3, or corresponding isostructural ZnO-Bi2O3phases. Thin-film, 1-2 nm grain boundaries were found to be amorphous, but for the first time, crystalline precipitates (with the β-Bi2O3type structure) were also detected in some thicker, 4-5 nm films. © 2005 Elsevier B.V. All rights reserved.
format Journal
author W. Onreabroy
N. Sirikulrat
A. P. Brown
C. Hammond
S. J. Milne
author_facet W. Onreabroy
N. Sirikulrat
A. P. Brown
C. Hammond
S. J. Milne
author_sort W. Onreabroy
title Properties and intergranular phase analysis of a ZnO-CoO-Bi<inf>2</inf>O<inf>3</inf>varistor
title_short Properties and intergranular phase analysis of a ZnO-CoO-Bi<inf>2</inf>O<inf>3</inf>varistor
title_full Properties and intergranular phase analysis of a ZnO-CoO-Bi<inf>2</inf>O<inf>3</inf>varistor
title_fullStr Properties and intergranular phase analysis of a ZnO-CoO-Bi<inf>2</inf>O<inf>3</inf>varistor
title_full_unstemmed Properties and intergranular phase analysis of a ZnO-CoO-Bi<inf>2</inf>O<inf>3</inf>varistor
title_sort properties and intergranular phase analysis of a zno-coo-bi<inf>2</inf>o<inf>3</inf>varistor
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=31544474871&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/61589
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