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A General Rate Equation for Nuclear Waste Glass Corrosion

Published online by Cambridge University Press:  26 February 2011

B. Grambow
B. Grambow*
Affiliation:
Hahn Meitner Institut fur Kernforschung GmbH Berlin, Glienicker Str. 100, D-1000 Berlin 39, Federal Republic of Germany
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Abstract

A general rate equation was developed to describe the reaction of nuclear waste glasses with aqueous solutions as a function of pH, the ratio of sample surface area to solution volume, temperature, time, glass- and solution composition. Thermodynamic and kinetic models have been combined in a new model. Glass network dissolution, pH variation, precipitation of stable or metastable solid reaction products, silica saturation at the glass and solution interface (reaction zone) and a residual affinity for the long term reaction under near saturation conditions have been addressed. The model has been successfully used to interpret a great number of experimental data reported in literature.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 44: Symposium N – Scientific Basis for Nuclear Waste Management VIII , 1984 , 15
Copyright
Copyright © Materials Research Society 1985

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References

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