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Experimental Study on the Activities of Al and Ca in Ferrosilicon
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.ORCID iD: 0000-0002-3548-8638
2017 (English)In: Metallurgical and materials transactions. B, process metallurgy and materials processing science, ISSN 1073-5615, E-ISSN 1543-1916, Vol. 48, no 6, 3251-3258 p.Article in journal (Refereed) Published
Abstract [en]

Experiments were carried out to determine the activities of Al and Ca in liquid ferrosilicon (with about 50 wt pct Si) at 1823 K (1550 A degrees C) in their dilution ranges. Liquid FeSi50 and SiO2-Al2O3-CaO slag were stirred mechanically in a graphite crucible to enhance the transfer of Al and Ca between the two phases. The stirring time for the two phases to reach equilibrium was studied. It was found that a time of 45 minutes was long enough to reach the slag-metal equilibrium. The activities of Al and Ca in the ferrosilicon alloy were calculated based on the compositions of the two liquid phases. The activity coefficients obtained for Al and Ca in the liquid FeSi50 at 1823 K (1550 A degrees C) were found to be nearly constant in the composition range studied.

Place, publisher, year, edition, pages
Springer, 2017. Vol. 48, no 6, 3251-3258 p.
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:kth:diva-219498DOI: 10.1007/s11663-017-1119-1ISI: 000415806100040Scopus ID: 2-s2.0-85032699157OAI: oai:DiVA.org:kth-219498DiVA: diva2:1163600
Note

QC 20171207

Available from: 2017-12-07 Created: 2017-12-07 Last updated: 2017-12-07Bibliographically approved

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Tomé Torquemada, SilviaSichen, Du

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Metallurgical and materials transactions. B, process metallurgy and materials processing science
Metallurgy and Metallic Materials

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