The Dissolution of Alumina in CaO-SiO2-Al2O3 Slags

Authors

Brian J. Monaghan, University of WollongongFollow
Liang Chen, University of WollongongFollow

RIS ID

13620

Publication Details

Monaghan, BJ & Chen, L, The Dissolution of Alumina in CaO-SiO2-Al2O3 Slags, Steel Research International, 76(5), 2005, p 348-354.

Abstract

The dissolution of alumina inclusions in CaO-SiO₂-Al₂O₃ based slags have been measured using laser scanning confocal microscopy (LSCM). Experiments were carried out over a temperature range of 1477 to 1577°C. It was found that diffusion coefficients calculated from the experimental results showed a dependence on the slag viscosity. This is considered strong evidence that the dissolution process is at least in part controlled by mass transfer in the slag phase. The diffusion coefficients for the alumina particles are estimated to be in the range 10^-11 to 10^-10 m²/s.