Processing of vacuum heat-treated MgO-densified silicon nitride crucible for molten cast iron handling

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dc.contributor.authorDemir, V.
dc.contributor.authorDemir, A.
dc.date.accessioned2024-09-29T15:57:40Z
dc.date.available2024-09-29T15:57:40Z
dc.date.issued2012
dc.departmentKarabük Üniversitesien_US
dc.description.abstractSilicon nitride with 3% MgO powder mix is uniaxially and cold isostatically pressed to form a green Si3N4 crucible. Liquid. phase sintering was applied to the green Si3N4 crucible at 1600 degrees C for 30 min under the nitrogen atmosphere. Intergranular Mg-Si-O-N glass remained between the silicon nitride grains which reacted with the molten metal during melting. This grain boundary glass was removed by vacuum heat treatment at 1575 degrees C for 5 h. The vacuum heat treated crucible was used to melt cast iron to examine reactions between the molten metal and Si3N4 ceramic crucible. EDX spectra across the Si3N4-cast iron interface and XRD for silicon nitride sample after cast-iron melting side surface analysis were carried out. Optical microscopy and SEM image analysis were made to examine the interaction between Si3N4 crucible and cast iron melt. Surprisingly, no reaction was observed between the vacuum heat treated crucible and melted cast iron. (C) 2011 Elsevier Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.jeurceramsoc.2011.04.013
dc.identifier.endpage1353en_US
dc.identifier.issn0955-2219
dc.identifier.issn1873-619X
dc.identifier.issue7en_US
dc.identifier.scopus2-s2.0-84858450274en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1349en_US
dc.identifier.urihttps://doi.org/10.1016/j.jeurceramsoc.2011.04.013
dc.identifier.urihttps://hdl.handle.net/20.500.14619/4924
dc.identifier.volume32en_US
dc.identifier.wosWOS:000302846400008en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofJournal of the European Ceramic Societyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSinteringen_US
dc.subjectGrain boundariesen_US
dc.subjectCorrosionen_US
dc.subjectSi3N4en_US
dc.subjectVacuum heat-treatmenten_US
dc.subjectCrucibleen_US
dc.titleProcessing of vacuum heat-treated MgO-densified silicon nitride crucible for molten cast iron handlingen_US
dc.typeArticleen_US

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