반응소결로 얻어진 Al2O3-ZrO2-Nb 복합체의 미세구조와 기계적 성질Microstructure and Mechanical Properties of Al2O3-ZrO2-Nb Composites Prepared by Reaction Sintering

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dc.contributor.author이수민ko
dc.contributor.author신유선ko
dc.contributor.author강석중ko
dc.date.accessioned2013-02-27T06:16:10Z-
dc.date.available2013-02-27T06:16:10Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued1991-02-
dc.identifier.citation한국세라믹학회지, v.28, no.5, pp.422 - 428-
dc.identifier.urihttp://hdl.handle.net/10203/66926-
dc.description.abstractThe reaction sintering of Al2O3-ZrO2-Nb composite has been investigated using Al2O3, and ZrAl2 powders. Two kinds of specimens, 78.3Al2O3-14.0Nb2O5-7.7ZrAl2 in wt.% (AZN-5) and 72.3Al2O3-13.8Nb2O5-7.5ZrAl2-6.4ZrO2(AZN-10), were prepared. Powder compacts were sintered at various temperatures between 1600℃ and 1700℃ for 30 min in Ar. DTA and X-ray analysis have showen that a reaction between Nb2O5 and ZrAl2 started at 1490℃ to form Al2O3, ZrO2, and Nb. The sintered density increased with the sintering temperature. AZN-10 specimen showed higher density than AZN-5 specimen for almost all the experimental conditions. Al2O3-ZrO2-Nb composite hot pressed after reaction sintering showed higher toughness and lower hardness than hot pressed Al2O3-ZrO2. The crack propagated through many metallic Nb particles which showed plastic deformation, and this is the cause of the increase in toughness of Al2O3-ZrO2-Nb composite over Al2O3-ZrO2.-
dc.languageKorean-
dc.publisher한국세라믹학회-
dc.title반응소결로 얻어진 Al2O3-ZrO2-Nb 복합체의 미세구조와 기계적 성질-
dc.title.alternativeMicrostructure and Mechanical Properties of Al2O3-ZrO2-Nb Composites Prepared by Reaction Sintering-
dc.typeArticle-
dc.type.rimsART-
dc.citation.volume28-
dc.citation.issue5-
dc.citation.beginningpage422-
dc.citation.endingpage428-
dc.citation.publicationname한국세라믹학회지-
dc.contributor.localauthor강석중-
dc.contributor.nonIdAuthor이수민-
dc.contributor.nonIdAuthor신유선-
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