Estimations of Electrical Conductivities in Molten Slag Systems
2009 (English)In: Journal of Iron and Steel Research International, ISSN 1006-706X, Vol. 80, no 9, 680-685 p.Article in journal (Refereed) Published
In the present paper, the electrical conductivities of molten silicates systems, CaO-MgO-SiO2, Na2O-MgO-SiO2, CaO-FeO-SiO2 and CaO-MgO-MnO-SiO2 (SiO2 = 45wt %) were estimated by the mass triangle method developed earlier by Chou. The computed results are compared with other approaches found in the literature. The predictions show satisfactory agreement with experimental results reported in the literature. A correlation was also made between the cation-oxygen ion attraction parameter I and the electrical conductivities of slags. It was found that the electrical conductivity varies linearly with I when the content of transition metallic ions is less than 0.2 mole fraction. Beyond this, the effect of electronic conduction is expected to dominate. On the basis of the present approach, the electrical conductivities of higher order systems can be estimated. The approach suggested in the present paper offers a powerful tool to design slags for applications in metallurgical processes.
Place, publisher, year, edition, pages
2009. Vol. 80, no 9, 680-685 p.
electrical conductivity, molten slag, mass triangle model
Metallurgy and Metallic Materials
IdentifiersURN: urn:nbn:se:kth:diva-11229DOI: 10.2374/SRI08SP165ISI: 000269856200012ScopusID: 2-s2.0-70350389192OAI: oai:DiVA.org:kth-11229DiVA: diva2:242307
QC 201008132009-10-082009-10-072012-01-18Bibliographically approved