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Devitrification Behavior of SRL Defense Waste Glass

Published online by Cambridge University Press:  25 February 2011

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

Simulated SRL waste was prepared with compositions varying in iron and aluminum content. Two batches with similar composition were produced with different amounts of reducing agent added. Samples were isothermally heat treated and used to derive time-temperature-transformation diagrams. Supplementary samples were cooled in a manner programmed to simulate the cooling curves of production canisters. Less than 10% total devitrification occurs during normal processing. However, when waste glass 165 was purposely devitrified, un to 30 volume percent total spinel and acmite formed. Formation of these species had minor effect on leachability in MCC-1 and accelerated leach tests.

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References

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