Effect of zirconium substitution on the phase formation and microstructure of BaCeO3

Polycrystalline compounds of Ba(Ce1-xZrx)0.95Yb0.05O2.975 (0.20 ≤ x ≤ 0.40) were prepared by the conventional solid state reaction method. All the samples exhibited the orthorhombic structure of BaCeO3. The particle size and morphology of the powdered samples were found to change gradually with Zr c...

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Main Authors:	N. Osman, I.A. Talib, H.A. Hamid
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2010
Online Access:	http://journalarticle.ukm.my/7361/ http://journalarticle.ukm.my/7361/ http://journalarticle.ukm.my/7361/1/01_Md_Yeaminhossain.pdf

id	ukm-7361
recordtype	eprints
spelling	ukm-73612016-12-14T06:43:51Z http://journalarticle.ukm.my/7361/ Effect of zirconium substitution on the phase formation and microstructure of BaCeO3 N. Osman, I.A. Talib, H.A. Hamid, Polycrystalline compounds of Ba(Ce1-xZrx)0.95Yb0.05O2.975 (0.20 ≤ x ≤ 0.40) were prepared by the conventional solid state reaction method. All the samples exhibited the orthorhombic structure of BaCeO3. The particle size and morphology of the powdered samples were found to change gradually with Zr content. The sample with x=0.40 showed more agglomerates of about 10.0 μm in size, and the particles constituting the agglomerates were smaller than 1.0 μm. For the polished and etched pelleted samples, only the x=0.20 sample showed clear grain shapes with sizes in the range of 1.0 to 3.0 μm. By increasing the Zr content to more than 20 mol%, the grain sizes became less pronounced and smaller. The deficiency of Ba that caused the formation of a Ce, Zr and Yb-rich sample was detected by energy dispersive X-ray measurement. Ba deficiency was attributed to the loss of BaO during the calcination and sintering processes. Universiti Kebangsaan Malaysia 2010-06 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/7361/1/01_Md_Yeaminhossain.pdf N. Osman, and I.A. Talib, and H.A. Hamid, (2010) Effect of zirconium substitution on the phase formation and microstructure of BaCeO3. Sains Malaysiana, 39 (3). pp. 479-484. ISSN 0126-6039 http://www.ukm.my/jsm/english_journals/vol39num3_2010/contentsVol39num3_2010.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	Polycrystalline compounds of Ba(Ce1-xZrx)0.95Yb0.05O2.975 (0.20 ≤ x ≤ 0.40) were prepared by the conventional solid state reaction method. All the samples exhibited the orthorhombic structure of BaCeO3. The particle size and morphology of the powdered samples were found to change gradually with Zr content. The sample with x=0.40 showed more agglomerates of about 10.0 μm in size, and the particles constituting the agglomerates were smaller than 1.0 μm. For the polished and etched pelleted samples, only the x=0.20 sample showed clear grain shapes with sizes in the range of 1.0 to 3.0 μm. By increasing the Zr content to more than 20 mol%, the grain sizes became less pronounced and smaller. The deficiency of Ba that caused the formation of a Ce, Zr and Yb-rich sample was detected by energy dispersive X-ray measurement. Ba deficiency was attributed to the loss of BaO during the calcination and sintering processes.
format	Article
author	N. Osman, I.A. Talib, H.A. Hamid,
spellingShingle	N. Osman, I.A. Talib, H.A. Hamid, Effect of zirconium substitution on the phase formation and microstructure of BaCeO3
author_facet	N. Osman, I.A. Talib, H.A. Hamid,
author_sort	N. Osman,
title	Effect of zirconium substitution on the phase formation and microstructure of BaCeO3
title_short	Effect of zirconium substitution on the phase formation and microstructure of BaCeO3
title_full	Effect of zirconium substitution on the phase formation and microstructure of BaCeO3
title_fullStr	Effect of zirconium substitution on the phase formation and microstructure of BaCeO3
title_full_unstemmed	Effect of zirconium substitution on the phase formation and microstructure of BaCeO3
title_sort	effect of zirconium substitution on the phase formation and microstructure of baceo3
publisher	Universiti Kebangsaan Malaysia
publishDate	2010
url	http://journalarticle.ukm.my/7361/ http://journalarticle.ukm.my/7361/ http://journalarticle.ukm.my/7361/1/01_Md_Yeaminhossain.pdf
first_indexed	2023-09-18T19:49:30Z
last_indexed	2023-09-18T19:49:30Z
_version_	1777406124312494080

Effect of zirconium substitution on the phase formation and microstructure of BaCeO3

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