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dc.contributor.authorSafarian, Jafar
dc.contributor.authorKolbeinsen, Leiv
dc.date.accessioned2017-11-21T09:05:29Z
dc.date.available2017-11-21T09:05:29Z
dc.date.created2016-01-19T13:28:52Z
dc.date.issued2015
dc.identifier.citationMetallurgical and materials transactions. B, process metallurgy and materials processing science. 2015, 46B 125-134.nb_NO
dc.identifier.issn1073-5615
dc.identifier.urihttp://hdl.handle.net/11250/2467263
dc.description.abstractThe interaction of carbon materials with molten slags occurs in many pyro-metallurgical processes. In the production of high carbon ferromanganese in submerged arc furnace, the carbothermic reduction of MnO-containing silicate slags yields the metal product. In order to study the interaction of carbon with MnO-containing slags, sessile drop wettability technique is employed in this study to reduce MnO from a molten slag drop by carbon substrates. The interfacial area on the carbon substrate before and after reaction with slag is studied by scanning electron microscope. It is indicated that no Mn metal particles are found at the interface through the reduction of the MnO slag. Moreover, the reduction of MnO occurs through the contribution of Boudouard reaction and it causes carbon consumption in particular active sites at the interface, which generate carbon degradation and open pore growth at the interface. It is shown that the slag is fragmented to many micro-droplets at the reaction interface, potentially due to the effect on the interfacial energies of a provisional liquid Mn thin film. The rapid reduction of these slag micro-droplets affects the carbon surface with making deep micro-pores. A mechanism for the formation of slag micro-droplets is proposed, which is based on the formation of provisional micro thin films of liquid Mn at the interface.nb_NO
dc.language.isoengnb_NO
dc.publisherSpringer Verlagnb_NO
dc.titleMicroscopic Study of Carbon Surfaces Interacting with High Carbon Ferromanganese Slagnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.pagenumber125-134nb_NO
dc.source.volume46Bnb_NO
dc.source.journalMetallurgical and materials transactions. B, process metallurgy and materials processing sciencenb_NO
dc.identifier.doi10.1007/s11663-014-0187-8
dc.identifier.cristin1317233
dc.description.localcode© Springer Verlag. This is the authors' accepted and refereed manuscript to the article. The final publication is available at https://link.springer.com/article/10.1007%2Fs11663-014-0187-8nb_NO
cristin.unitcode194,66,35,0
cristin.unitnameInstitutt for materialteknologi
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


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