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The Viscosity of Molten Material in Pores and Capillary Channels of the Matrix Phase of High-Alumina Castables Employed in Thermal Power Units of Ferrous Metallurgy. 1. Viscosity Analysis of Melts in the CaO – Al2O3 –FeO – Fe2O3 – SiO2 System

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Abstract

A new approach to the viscosity analysis of high-alumina, low-calcium melts of the CaO – Al2O3 – FeO – Fe2O3 – SiO2 system is used. A mathematical formalism for handling experimental viscosity data on the CaO – FeO – Fe2O3 – SiO2 system is proposed that allows viscosity of the system to be evaluated within Δηav = 0.004 Pa · sec in the temperature range of 1500 – 1700°C at concentrations (mol.%) of CaO = 15.3 – 50.3, FexOy = 2.3 – 38.5, and SiO2 = 17.7 – 57.7. An equation describing viscosity as a function of temperature is derived. Using this equation, the viscosity of model melts compositionally analogous to the products of interaction between molten slag and the glassy matrix phase of castables employed in thermal power units of ferrous metallurgy is considered.

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Authors and Affiliations

  1. Belgorod State Technological Academy for Building Materials, Belgorod, Russia

    S. V. Reznichenko, V. Yu. Belousova & K. G. Zemlyanoi

  2. Ural State Technical University (UPI), Ekaterinburg, Russia

    S. V. Reznichenko, V. Yu. Belousova & K. G. Zemlyanoi

Authors
  1. S. V. Reznichenko
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  2. V. Yu. Belousova
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  3. K. G. Zemlyanoi
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Reznichenko, S.V., Belousova, V.Y. & Zemlyanoi, K.G. The Viscosity of Molten Material in Pores and Capillary Channels of the Matrix Phase of High-Alumina Castables Employed in Thermal Power Units of Ferrous Metallurgy. 1. Viscosity Analysis of Melts in the CaO – Al2O3 –FeO – Fe2O3 – SiO2 System. Refractories and Industrial Ceramics 43, 167–171 (2002). https://doi.org/10.1023/A:1020515000069

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