Calculation Model for Surface Tension of Slag Melt

摘要

Based on the coexistence theory of slag melt structure and Butler's equation,a new calculation model has been proposed for the calculation of surface tension of slag melt.This model establishes a specific correlation between surface tension and mass action concentrations(activities) in the melt and on its surface on the basis of inner and surficial structures of slag melt.Calculated surface tensions of CaO-SiO_2 and MnO-SiO_2 slag melts are consistent with those measured.Furthermore,iso-surface tension lines of CaO-MnO-SiO_2 slag melt have also been calculated.