Heating time required for an MgO-graphite refractory during a hot modulus of rupture test

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dc.contributor.authorBaldo, J. B.
dc.contributor.authorDos Santos, W. N.
dc.contributor.authorPaskocimas, C. A.
dc.contributor.authorCava, S.
dc.contributor.authorPianaro, S. A.
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionFederal University of Rio Grande do Norte
dc.contributor.institutionDepartment of Materials Engineering
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:21:58Z
dc.date.available2014-05-27T11:21:58Z
dc.date.issued2006-09-01
dc.description.abstractIn the work described in the present paper, an analytical solution of the general heat conduction equation was employed to assay the temperature profile inside a solid slab which is initially at room temperature and is suddenly plunged into a fluid maintained at a high temperature. The results were then extrapolated to a simulation of a hot modulus of rupture test of typical MgO-graphite refractory samples containing different amounts of graphite in order to evaluate how fast the temperature equilibrates inside the test specimens. Calculations indicated that, depending on the graphite content, the time to full temperature homogenization was in the range of 80 to 200 s. These findings are relevant to the high temperature testing of such refractories in oxidizing conditions in view of the graphite oxidation risks in the proper evaluation of the hot mechanical properties.en
dc.description.affiliationFederal University of São Carlos
dc.description.affiliationFederal University of Sao Carlos Department of Materials Engineering, Via Washington Luiz, km 235, Sao Carlos-SP, CEP 13565-905
dc.description.affiliationFederal University of Rio Grande do Norte Department of Materials, Natal-RN
dc.description.affiliationState University of Ponta Grossa Department of Materials Engineering Campus - Uvaranas, Av. Gai. Carlos Cavalcanti, 4748, CEP 84035-900, Ponta Grossa - PR
dc.description.affiliationPaulista State University Institute of Chemistry, R. Francisco Degni, s/n, Bairro Quitandinha, Araraquara - SP
dc.description.affiliationUnespPaulista State University Institute of Chemistry, R. Francisco Degni, s/n, Bairro Quitandinha, Araraquara - SP
dc.format.extent352-356
dc.identifierhttp://www.interceram-review.info/index.cfm?objekt=INTERC&jahr=2006&ausgabe=5&rubrik_en=Refractories&lang=EN&artikel_id=204066&navi=2
dc.identifier.citationInterCeram: International Ceramic Review, v. 55, n. 5, p. 352-356, 2006.
dc.identifier.issn0020-5214
dc.identifier.scopus2-s2.0-33749544995
dc.identifier.urihttp://hdl.handle.net/11449/69078
dc.language.isoeng
dc.relation.ispartofInterCeram: International Ceramic Review
dc.relation.ispartofsjr0,116
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectHot modulus of rupture test
dc.subjectMgO-graphite refractories
dc.subjectOxidation layer
dc.subjectOxidation layers
dc.subjectGraphite
dc.subjectHeat conduction
dc.subjectMechanical properties
dc.subjectOxidation
dc.subjectRefractory materials
dc.subjectThermodynamic properties
dc.subjectMagnesia
dc.titleHeating time required for an MgO-graphite refractory during a hot modulus of rupture testen
dc.typeArtigo
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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