Effect of adding Y2O3 on structural and mechanical properties of Al2O3-ZrO2 ceramics

Effect of adding Y2O3 on structural and mechanical properties of Al2O3-ZrO2 ceramics

The effects of adding 1-8 wt% Y2O3on phase formation and fracture toughness of Al2O3-xZrO2-Y2O3(AZY) ceramics were studied. Phase formations of the samples were characterized by the X-ray diffraction (XRD) technique. It was found that the major phase was rhombohedral-Al2O3, while the minor phase con...

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Main Authors: A. Rittidech, R. Somrit, T. Tunkasiri
Format: Journal
Published: 2018
Subjects:
Chemical Engineering
Materials Science
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/52348
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-523482018-09-04T09:30:14Z Effect of adding Y2O3 on structural and mechanical properties of Al2O3-ZrO2 ceramics A. Rittidech R. Somrit T. Tunkasiri Chemical Engineering Materials Science The effects of adding 1-8 wt% Y2O3on phase formation and fracture toughness of Al2O3-xZrO2-Y2O3(AZY) ceramics were studied. Phase formations of the samples were characterized by the X-ray diffraction (XRD) technique. It was found that the major phase was rhombohedral-Al2O3, while the minor phase consisted of the monoclinic-ZrO2, tetragonal-ZrO2and monoclinic-Y2O3. It was found that Y2O3contents did not clearly influence grain shape of AZY ceramics. The results obtained from the microhardness test could be used to evaluate the fracture toughness. It was found that the smaller grains had high fracture toughness. The maximum fracture toughness of 4.827 MPa m1/2was obtained from 4 wt% Y2O3. Refinement of lattice parameters using Rietveld analysis revealed the quantitative phases of AZY ceramics. This shows that under adding Y2O3conditions the proportion of tetragonal-ZrO2phase plays an important role for the mechanical properties of AZY ceramics. © 2012 Elsevier Ltd and Techna Group S.r.l. 2018-09-04T09:23:47Z 2018-09-04T09:23:47Z 2013-05-01 Journal 02728842 2-s2.0-84875695522 10.1016/j.ceramint.2012.10.108 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84875695522&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/52348
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
A. Rittidech
R. Somrit
T. Tunkasiri
Effect of adding Y2O3 on structural and mechanical properties of Al2O3-ZrO2 ceramics
description The effects of adding 1-8 wt% Y2O3on phase formation and fracture toughness of Al2O3-xZrO2-Y2O3(AZY) ceramics were studied. Phase formations of the samples were characterized by the X-ray diffraction (XRD) technique. It was found that the major phase was rhombohedral-Al2O3, while the minor phase consisted of the monoclinic-ZrO2, tetragonal-ZrO2and monoclinic-Y2O3. It was found that Y2O3contents did not clearly influence grain shape of AZY ceramics. The results obtained from the microhardness test could be used to evaluate the fracture toughness. It was found that the smaller grains had high fracture toughness. The maximum fracture toughness of 4.827 MPa m1/2was obtained from 4 wt% Y2O3. Refinement of lattice parameters using Rietveld analysis revealed the quantitative phases of AZY ceramics. This shows that under adding Y2O3conditions the proportion of tetragonal-ZrO2phase plays an important role for the mechanical properties of AZY ceramics. © 2012 Elsevier Ltd and Techna Group S.r.l.
format Journal
author A. Rittidech
R. Somrit
T. Tunkasiri
author_facet A. Rittidech
R. Somrit
T. Tunkasiri
author_sort A. Rittidech
title Effect of adding Y2O3 on structural and mechanical properties of Al2O3-ZrO2 ceramics
title_short Effect of adding Y2O3 on structural and mechanical properties of Al2O3-ZrO2 ceramics
title_full Effect of adding Y2O3 on structural and mechanical properties of Al2O3-ZrO2 ceramics
title_fullStr Effect of adding Y2O3 on structural and mechanical properties of Al2O3-ZrO2 ceramics
title_full_unstemmed Effect of adding Y2O3 on structural and mechanical properties of Al2O3-ZrO2 ceramics
title_sort effect of adding y2o3 on structural and mechanical properties of al2o3-zro2 ceramics
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84875695522&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/52348
_version_ 1681423934692524032

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