Study on structure and properties of glass ceramics from converter slag

Glass ceramics from converter slag as a raw material were prepared with the melting method. The effects of the mass fraction of converter slag on crystallization behavior and properties were studied by SEM, XRD and EDX. The results showed: With the mass fraction of converter slag increasing, the transition temperature of glass gradually decreased; the intensity of diffraction peak gradually increased, and the crystal phase of glass ceramics were Ca(1.018)(Mg(0.733)Fe(0.293))((Si(1.67)Fe(0.304))O(6)) and Ca(Fe, Mg)Si(2)O(6), and the results of EDX showed there were Fe, Ca, Si, Mg and 0; the amount of crystals and crystal size gradually increased, and crystal morphology changes from globular to leaflike to tabular, the microhardness firstly decreased and then increased, which were the maximum when the mass fraction of converter slag was 70%. The bulk density was up to the maximum when the mass fraction of converter slag was 60%.