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Stability of Radioactive Waste Glasses Assessed from Hydration Thermodynamics

Published online by Cambridge University Press:  25 February 2011

M. John Plodinec ,
Carol M. Jantzen  and
George G. Wicks
M. John Plodinec
Affiliation:
E. I. du Pont de Nemours & CompanySavannah River Laboratory Aiken, South Carolina 29808
Carol M. Jantzen
Affiliation:
E. I. du Pont de Nemours & CompanySavannah River Laboratory Aiken, South Carolina 29808
George G. Wicks
Affiliation:
E. I. du Pont de Nemours & CompanySavannah River Laboratory Aiken, South Carolina 29808
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Abstract

Assessment of the geologic performance of radioactive waste glasses requires extrapolation of finite tests to very long times. Hydration thermodynamics provides a means to compare the stability of waste glasses to natural analogues and to ancient synthetic glasses. The glass composition is separated into structural components of known free energy of hydration. These are then summed to provide a discrete measure of the stability of a given glass to aqueous attack. Hydration thermodynamics can be used to extend the results of laboratory tests of Savannah River waste glass to the repository environment.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 26: Symposium D – Scientific Basis for Nuclear Waste Management VII , 1983 , 755
Copyright
Copyright © Materials Research Society 1984

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References

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