ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Regular Article
Development of a Quasi-chemical Viscosity Model for Fully Liquid Slags in the Al2O3–CaO–‘FeO’–MgO–SiO2 System. Part 1. Description of the Model and Its Application to the MgO, MgO–SiO2, Al2O3–MgO and CaO–MgO Sub-systems
Alex KondratievPeter C. HayesEvgueni Jak
Author information

2006 Volume 46 Issue 3 Pages 359-367


A structurally-based quasi-chemical viscosity model for fully liquid slags in the Al2O3–CaO–‘FeO’–MgO–SiO2 system has been developed. The model links the slag viscosities to the internal structures of the melts through the concentrations of various Si0.5O, Me2/nn+O and Me1/nn+Si0.25O viscous flow structural units. The concentrations of these structural units are derived from a quasi-chemical thermodynamic model of the system. The model described in this series of papers enables the viscosities of liquid slags to be predicted within experimental uncertainties over the whole range of temperatures and compositions in the Al2O3–CaO–MgO–SiO2 system.

Information related to the author
© 2006 by The Iron and Steel Institute of Japan
Previous article Next article