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Leaching of Devitrified Glass Containing Simulated SRP Nuclear Waste

Published online by Cambridge University Press:  26 February 2011

Carol M. Jantzen
Affiliation:
E. I. du Pont de Nemours and Company, Savannah River Laboratory Aiken, South Carolina 29808
Dennis F. Bickford
Affiliation:
E. I. du Pont de Nemours and Company, Savannah River Laboratory Aiken, South Carolina 29808
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Abstract

Time-temperature-transformation curves have been determined for SRL-165 and SRL-131 waste glasses for all potential waste compositions. SRL-165 glasses, which contain less alkali, exhibit less complex devitrification and higher overall durability than SRL-131 waste glasses. Devitrification was found to have less effect on the durability of waste glasses than changes in composition. Non-uniform dissolution at the glass leached layer interface is observed. However, leached layers formed after 28 days shield the crystal interfaces from further dissolution.

Type
Research Article
Copyright
Copyright © Materials Research Society 1985

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