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Calculation of the Viscosity of Nuclear Waste Glass Systems

Published online by Cambridge University Press:  21 February 2011

R. Shah
Affiliation:
Institute for Ceramic Physics, New York State College of Ceramics at Alfred University, Alfred, NY 14802
E.C. Behrman
Affiliation:
Institute for Ceramic Physics, New York State College of Ceramics at Alfred University, Alfred, NY 14802
D. Oksoy
Affiliation:
Institute for Ceramic Physics, New York State College of Ceramics at Alfred University, Alfred, NY 14802
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Abstract

Viscosity is one of the most important processing parameters and one of the most difficult to calculate theoretically, particularly for multicomponent systems like nuclear waste glasses. Here, we propose a semi-empirical approach based on the Fulcher equation, involving identification of key variables, for which coefficients are then determined by regression analysis. Results are presented for two glass systems, and compared to results of previous workers and to experiment. We also sketch a first-order statistical mechanical perturbation theory calculation for the effects on viscosity of a change in composition of the melt.

Type
Research Article
Copyright
Copyright © Materials Research Society 1990

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References

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