Properties of lead zirconate-alumina 'nanocomposites'

Microstructures, Vickers hardness and dielectric properties of PbZrO3ceramics with co-additions of 0.5-5 vol% Al2O3nanoparticles have been investigated. The additive inhibited grain growth, with average grain size decreasing from ∼13 μm for PbZrO3to ∼1 μm for the nanocomposites. The mode of fracture...

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Main Authors: Chompoonuch Puchmark, Sukanda Jiansirisomboon, Gobwute Rujijanagul, Timothy P. Comyn, Jing Yan He, Steven J. Milne
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Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/61079
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spelling th-cmuir.6653943832-610792018-09-10T04:10:27Z Properties of lead zirconate-alumina 'nanocomposites' Chompoonuch Puchmark Sukanda Jiansirisomboon Gobwute Rujijanagul Timothy P. Comyn Jing Yan He Steven J. Milne Engineering Materials Science Physics and Astronomy Microstructures, Vickers hardness and dielectric properties of PbZrO3ceramics with co-additions of 0.5-5 vol% Al2O3nanoparticles have been investigated. The additive inhibited grain growth, with average grain size decreasing from ∼13 μm for PbZrO3to ∼1 μm for the nanocomposites. The mode of fracture also changed, from predominantly inter-granular in PbZrO3to a mixed-mode of intra- and inter-granular fracture in the composite samples. Vickers hardness values increased from 2.9 GPa for PbZrO3to 4.1 GPa for the sample with 1 vol% Al2O3, but there was a more gradual increase for higher Al2O3contents. Plots of relative permittivity versus temperature indicated subtle differences which were attributed to a chemical reaction between the additive and matrix during sintering. X-ray powder diffraction showed that lead aluminium oxides were the principal products of this reaction. © 2006 Elsevier Ltd. All rights reserved. 2018-09-10T04:03:54Z 2018-09-10T04:03:54Z 2007-07-03 Journal 00255408 2-s2.0-34247544700 10.1016/j.materresbull.2006.10.013 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=34247544700&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/61079
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Engineering
Materials Science
Physics and Astronomy
spellingShingle Engineering
Materials Science
Physics and Astronomy
Chompoonuch Puchmark
Sukanda Jiansirisomboon
Gobwute Rujijanagul
Timothy P. Comyn
Jing Yan He
Steven J. Milne
Properties of lead zirconate-alumina 'nanocomposites'
description Microstructures, Vickers hardness and dielectric properties of PbZrO3ceramics with co-additions of 0.5-5 vol% Al2O3nanoparticles have been investigated. The additive inhibited grain growth, with average grain size decreasing from ∼13 μm for PbZrO3to ∼1 μm for the nanocomposites. The mode of fracture also changed, from predominantly inter-granular in PbZrO3to a mixed-mode of intra- and inter-granular fracture in the composite samples. Vickers hardness values increased from 2.9 GPa for PbZrO3to 4.1 GPa for the sample with 1 vol% Al2O3, but there was a more gradual increase for higher Al2O3contents. Plots of relative permittivity versus temperature indicated subtle differences which were attributed to a chemical reaction between the additive and matrix during sintering. X-ray powder diffraction showed that lead aluminium oxides were the principal products of this reaction. © 2006 Elsevier Ltd. All rights reserved.
format Journal
author Chompoonuch Puchmark
Sukanda Jiansirisomboon
Gobwute Rujijanagul
Timothy P. Comyn
Jing Yan He
Steven J. Milne
author_facet Chompoonuch Puchmark
Sukanda Jiansirisomboon
Gobwute Rujijanagul
Timothy P. Comyn
Jing Yan He
Steven J. Milne
author_sort Chompoonuch Puchmark
title Properties of lead zirconate-alumina 'nanocomposites'
title_short Properties of lead zirconate-alumina 'nanocomposites'
title_full Properties of lead zirconate-alumina 'nanocomposites'
title_fullStr Properties of lead zirconate-alumina 'nanocomposites'
title_full_unstemmed Properties of lead zirconate-alumina 'nanocomposites'
title_sort properties of lead zirconate-alumina 'nanocomposites'
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=34247544700&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/61079
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