Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/11839
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dc.contributor.authorGökelma, Mertol-
dc.contributor.authorStorm Aarnaes, Trygve-
dc.contributor.authorMaier, Juergen-
dc.contributor.authorRenkel, Maria F.-
dc.contributor.authorEkstrom, Kai Erik-
dc.contributor.authorFriedrich, Bernd-
dc.contributor.authorTranell, Gabriella-
dc.date.accessioned2021-12-02T18:16:18Z-
dc.date.available2021-12-02T18:16:18Z-
dc.date.issued2021-
dc.identifier.issn1073-5615-
dc.identifier.issn1543-1916-
dc.identifier.urihttps://doi.org/10.1007/s11663-020-02049-7-
dc.identifier.urihttps://hdl.handle.net/11147/11839-
dc.description.abstractAl4C3 particles form during the primary production of aluminum via molten salt electrolysis due to the carbon solubility and direct contact between bath, metal, and carbon anodes. Additional Al4C3 may form during melt processing through direct contact between the melt and carbonaceous materials. As a result of their small size and similar density to aluminum, removal of aluminum carbide particles can be challenging. If not removed, carbides can produce inclusion defects or poor surface condition in aluminum products. The current work studies the removal and behavior of Al4C3 particles during flotation with different gas mixtures, as well as sedimentation. The interaction between carbide particles and Al2O3 films during the melt treatment processes was also studied and reported. Factsage thermochemical software was used to model the interactions at the interface of inclusions and bubbles covered by films. The highest degree of carbide removal was obtained after flotation with an H2O-containing argon gas mixture, where the carbide concentration dropped below the measured solubility limit of carbon at the corresponding temperature. Strong interaction between Al4C3 particles and Al2O3 films was observed during sedimentation which worked as an efficient removal method for the particles. Oxidation of carbides and formation of oxycarbides were suggested as the mechanisms promoting the attachment of carbides on oxide films.en_US
dc.description.sponsorshipThe authors wish to thank staff at Hydro Aluminium SunndalsOra for supplying electrolysis metal and for carrying out all carbide analyses. The work was funded through the BEST project, jointly financed by the Research Council of Norway, Hydro Aluminium, Alcoa Norway, Granges Aluminium and Hycast.en_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofMetallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Scienceen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectOxide filmsen_US
dc.titleBehavior of Al4C3 particles during flotation and sedimentation in aluminum meltsen_US
dc.typeArticleen_US
dc.authorid0000-0002-0217-6013-
dc.institutionauthorGökelma, Mertol-
dc.departmentİzmir Institute of Technology. Materials Science and Engineeringen_US
dc.identifier.volume52en_US
dc.identifier.issue2en_US
dc.identifier.startpage743en_US
dc.identifier.endpage754en_US
dc.identifier.wosWOS:000605537500003en_US
dc.identifier.scopus2-s2.0-85099057973en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.doi10.1007/s11663-020-02049-7-
dc.authorwosidFriedrich, Bernd/AAM-7005-2021-
dc.authorwosidFriedrich, Bernd/AAM-7029-2021-
dc.identifier.wosqualityQ2-
dc.identifier.scopusqualityQ1-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
item.languageiso639-1en-
item.openairetypeArticle-
item.cerifentitytypePublications-
crisitem.author.dept03.09. Department of Materials Science and Engineering-
Appears in Collections:Materials Science and Engineering / Malzeme Bilimi ve Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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