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dc.contributor.authorCho, KS-
dc.contributor.authorChoi, HJ-
dc.contributor.authorLee, JG-
dc.contributor.authorKim, YW-
dc.date.accessioned2024-01-21T17:34:15Z-
dc.date.available2024-01-21T17:34:15Z-
dc.date.created2022-01-11-
dc.date.issued1998-01-
dc.identifier.issn0272-8842-
dc.identifier.urihttps://pubs.kist.re.kr/handle/201004/143302-
dc.description.abstractPowder mixtures of beta-SiC-30 wt% TiB2 containing 5 wt% (ST1), 10 wt% (ST2), and 20 wt% (ST3) Al2O3-Y2O3 as sintering additives were liquid-phase sintered at 1850 degrees C for 1 h by hot-pressing and subsequently annealed at 1950 degrees C for 2, 6, and 12 h. These materials had a microstructure of 'in situ toughened composites' as a result of the beta --> alpha phase transformation of SiC during annealing. The introduction of larger amount of additives accelerated the grain growth of elongated alpha-SiC grains with higher aspect ratio, resulting in the improved fracture toughness. The fracture toughnesses of 12-h annealed materials with 5, 10, and 20 wt% additives were 5.7, 5.9, and 7.1 MPam(1/2), respectively. (C) 1998 Elsevier Science Limited and Techna S.r.l. All rights reserved.-
dc.languageEnglish-
dc.publisherELSEVIER SCI LTD-
dc.subjectTOUGHENED SILICON-CARBIDE-
dc.subjectGRAIN-SIZE DEPENDENCE-
dc.subjectMECHANICAL-PROPERTIES-
dc.subjectCERAMICS-
dc.subjectRESISTANCE-
dc.subjectENERGY-
dc.titleEffects of additive amount on microstructure and fracture toughness of SiC-TiB2 composites-
dc.typeArticle-
dc.identifier.doi10.1016/S0272-8842(97)00015-1-
dc.description.journalClass1-
dc.identifier.bibliographicCitationCERAMICS INTERNATIONAL, v.24, no.4, pp.299 - 305-
dc.citation.titleCERAMICS INTERNATIONAL-
dc.citation.volume24-
dc.citation.number4-
dc.citation.startPage299-
dc.citation.endPage305-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.identifier.wosid000074985300010-
dc.identifier.scopusid2-s2.0-0031641881-
dc.relation.journalWebOfScienceCategoryMaterials Science, Ceramics-
dc.relation.journalResearchAreaMaterials Science-
dc.type.docTypeArticle-
dc.subject.keywordPlusTOUGHENED SILICON-CARBIDE-
dc.subject.keywordPlusGRAIN-SIZE DEPENDENCE-
dc.subject.keywordPlusMECHANICAL-PROPERTIES-
dc.subject.keywordPlusCERAMICS-
dc.subject.keywordPlusRESISTANCE-
dc.subject.keywordPlusENERGY-
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