A Thermodynamic Approach to a Density Model for Oxide Melts
2007 (English)In: Steel research, ISSN 0177-4832, Vol. 78, no 4, 290-298 p.Article in journal (Refereed) Published
In an attempt to estimate the densities of complex slags, a model based on the thermodynamics ofslags developed earlier by the present authors is extended to ternary and multi-component systemsin the present work. The molar volumes of ternary and higher order systems were derived from therelative integral molar enthalpies of mixing of the corresponding slags. The higher order of slagsystems has been predicted by using the parameters from the related binary sub-systems, whichhave been evaluated earlier. Comparisons of calculated results with experimental data on molarvolumes available in literature show a satisfying agreement for a number of systems, within the limitsof experimental uncertainties. The model presents a promising method to compute the molar volumeof slag systems where no experimental data is available using the abundance of thermodynamicdata available. The model would also enable the generation of density data for slags containingAl2O3, CaO, FeO, MgO, MnO, and SiO2 compatible with the corresponding thermodynamic data.
Place, publisher, year, edition, pages
2007. Vol. 78, no 4, 290-298 p.
Density, Enthalpies, Model, Molar volume, Oxide melts, Slags, Thermodynamics
Metallurgy and Metallic Materials
IdentifiersURN: urn:nbn:se:kth:diva-7110DOI: 10.2374/SRI06SP108-78-2007-290ISI: 000246510800003ScopusID: 2-s2.0-34248138538OAI: oai:DiVA.org:kth-7110DiVA: diva2:12024
QC 201008122007-05-152007-05-152011-11-07Bibliographically approved