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Thermodynamics of Boron Removal from Silicon Using CaO-MgO-Al2O3-SiO2 Slags

dc.contributor.authorJakobsson, Lars Klemet
dc.contributor.authorTangstad, Merete
dc.date.accessioned2019-06-24T07:10:45Z
dc.date.available2019-06-24T07:10:45Z
dc.date.created2018-11-25T19:56:25Z
dc.date.issued2018
dc.identifier.citationMetallurgical and materials transactions. B, process metallurgy and materials processing science. 2018, 49 (4), 1699-1708.nb_NO
dc.identifier.issn1073-5615
dc.identifier.urihttp://hdl.handle.net/11250/2601766
dc.description.abstractSlag refining is one of few metallurgical methods for removal of boron from silicon. It is important to know the thermodynamic properties of boron in slags to understand the refining process. The relation of the distribution coefficient of boron to the activity of silica, partial pressure of oxygen, and capacity of slags for boron oxide was investigated. The link between these parameters explains why the distribution coefficient of boron does not change much with changing slag composition. In addition, the thermodynamic properties of dilute boron oxide in CaO-MgO-Al2O3-SiO2 slags was determined. The ratio of the activity coefficient of boron oxide and silica was found to be the most important parameter for understanding changes in the distribution coefficient of boron for different slags. Finally, the relation between the activity coefficient of boron oxide and slag structure was investigated. It was found that the structure can explain how the distribution coefficient of boron changes depending on slag composition.nb_NO
dc.language.isoengnb_NO
dc.publisherSpringernb_NO
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleThermodynamics of Boron Removal from Silicon Using CaO-MgO-Al2O3-SiO2 Slagsnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.source.pagenumber1699-1708nb_NO
dc.source.volume49nb_NO
dc.source.journalMetallurgical and materials transactions. B, process metallurgy and materials processing sciencenb_NO
dc.source.issue4nb_NO
dc.identifier.doi10.1007/s11663-018-1250-7
dc.identifier.cristin1634728
dc.description.localcode© 2018 by the authors.This article is distributed under the terms of the Creative Commons Attribution 4.0 International License .nb_NO
cristin.unitcode194,66,35,0
cristin.unitnameInstitutt for materialteknologi
cristin.ispublishedtrue
cristin.fulltextpreprint
cristin.qualitycode2


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Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal