Effect of step free energy on delayed abnormal grain growth in a liquid phase-sintered BaTiO3 model system

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dc.contributor.authorHeo, Yoon Hoko
dc.contributor.authorJeon, Sang-Chaeko
dc.contributor.authorFisher, John G.ko
dc.contributor.authorChoi, Si-Youngko
dc.contributor.authorHur, Kang-Heonko
dc.contributor.authorKang, Suk-Joong Lko
dc.date.accessioned2013-03-08T17:40:59Z-
dc.date.available2013-03-08T17:40:59Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2011-05-
dc.identifier.citationJOURNAL OF THE EUROPEAN CERAMIC SOCIETY, v.31, no.5, pp.755 - 762-
dc.identifier.issn0955-2219-
dc.identifier.urihttp://hdl.handle.net/10203/93778-
dc.description.abstractThe changes in solid/liquid interface structure and grain growth behavior with oxygen partial pressure (P-O2) were systematically studied during liquid-phase sintering of 8TiO(2)/2SiO(2)-added BaTiO3. As the P-O2 of the sintering atmosphere increased, the grain boundaries and solid/liquid interfaces showed increased faceting, indicating an increase in step free energy. This increase in P-O2 and step free energy caused a change in grain growth behavior as a function of sintering time. When samples were sintered in H-2, abnormal grain growth (AGG) occurred from the beginning, resulting in a coarse microstructure with a large average grain size. With increasing P-O2, the incubation time necessary for AGG also increased. Finally, for samples sintered in air, AGG did not occur even after 100 h. These changes in incubation time for abnormal grain growth demonstrate the effect of changing the step free energy on the microstructural development during liquid phase sintering of ceramic systems. (C) 2010 Elsevier Ltd. All rights reserved.-
dc.languageEnglish-
dc.publisherELSEVIER SCI LTD-
dc.subjectOXYGEN PARTIAL-PRESSURE-
dc.subjectDOPED BARIUM-TITANATE-
dc.subjectCOARSENING BEHAVIOR-
dc.subjectINTERFACE STRUCTURE-
dc.subjectMICROSTRUCTURAL EVOLUTION-
dc.subjectSURFACE-MORPHOLOGY-
dc.subjectKINETICS-
dc.subjectMATRIX-
dc.subjectTRANSITION-
dc.subjectCERAMICS-
dc.titleEffect of step free energy on delayed abnormal grain growth in a liquid phase-sintered BaTiO3 model system-
dc.typeArticle-
dc.identifier.wosid000287389300012-
dc.identifier.scopusid2-s2.0-78751578840-
dc.type.rimsART-
dc.citation.volume31-
dc.citation.issue5-
dc.citation.beginningpage755-
dc.citation.endingpage762-
dc.citation.publicationnameJOURNAL OF THE EUROPEAN CERAMIC SOCIETY-
dc.identifier.doi10.1016/j.jeurceramsoc.2010.12.010-
dc.contributor.localauthorKang, Suk-Joong L-
dc.contributor.nonIdAuthorHeo, Yoon Ho-
dc.contributor.nonIdAuthorJeon, Sang-Chae-
dc.contributor.nonIdAuthorFisher, John G.-
dc.contributor.nonIdAuthorChoi, Si-Young-
dc.contributor.nonIdAuthorHur, Kang-Heon-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorGrain growth-
dc.subject.keywordAuthorGrain boundaries-
dc.subject.keywordAuthorInterfaces-
dc.subject.keywordAuthorMicrostructure-final-
dc.subject.keywordAuthorBaTiO3 and titanates-
dc.subject.keywordPlusOXYGEN PARTIAL-PRESSURE-
dc.subject.keywordPlusDOPED BARIUM-TITANATE-
dc.subject.keywordPlusCOARSENING BEHAVIOR-
dc.subject.keywordPlusINTERFACE STRUCTURE-
dc.subject.keywordPlusMICROSTRUCTURAL EVOLUTION-
dc.subject.keywordPlusSURFACE-MORPHOLOGY-
dc.subject.keywordPlusKINETICS-
dc.subject.keywordPlusMATRIX-
dc.subject.keywordPlusTRANSITION-
dc.subject.keywordPlusCERAMICS-
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