In situ measurements of solid-phase kinetic growth during slag isothermal crystallisation

In this work we investigated the isothermal crystallisation of spinel and anorthite phases during slag viscosity measurements. Our results show that solid precipitation time and solid-phase growth rates are significantly affected by slag viscosity and the degree of supercooling. Through scanning electron microscopy and electron probe microanalysis of quenched-slag phase compositions and analysis of the viscosity changes during crystallisation, we have determined the kinetics of solid phase growth and identified differences in spinel and anorthite crystals growth.