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

The Viscosity of Molten Material in Pores and Capillary Channels of the Matrix Phase of... 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

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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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2002 by Plenum Publishing Corporation
Subject
Materials Science; Characterization and Evaluation of Materials; Materials Science, general; Ceramics, Glass, Composites, Natural Materials
ISSN
1083-4877
eISSN
1573-9139
D.O.I.
10.1023/A:1020515000069
Publisher site
See Article on Publisher Site

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.

Journal

Refractories and Industrial CeramicsSpringer Journals

Published: Oct 13, 2004

References

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