Effect of CaO/ SiO 2 ratio on viscosity and structure of slag
2015
L. Řehackova, S. Rosypalova, R. Dudek, J. Dobrovska, J. Kukutschova, VSB-TU Ostrava, FMMI, Ostrava, Czech Republic The objective of this work is experimental determination of temperature dependences of viscosity of the molten CaO Al2O3 SiO2 system and assessment of impact of CaO/SiO2 ratio on viscosity and structure of this system. Experimental measurements of viscosity were performed with use of the high-temperature viscometer Anton Paar FRS 1 600. Viscosity was measured in a rotational mode during heating at the rate of 3,3 °C/min in the temperature interval from 1 673 to 1 873 K. Viscosity in the molten oxide system is determined by the internal structure. Exact clarification of the change of structure of the oxide system caused by the increased content of CaO was performed by Fourier transform infrared spectroscopy.
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