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Effect of Fe2O3/ZnO on Two Glass Compositions for Solidification of Swedish Nuclear Wastes

Published online by Cambridge University Press:  15 February 2011

J. L. Nogues  and
L. L. Hench
J. L. Nogues
Affiliation:
Laboratoire des Verres, Universite des Sciences et Techniques du Languedoc, 34060 Montpellier Cedex (France);
L. L. Hench
Affiliation:
Ceramics Division, Department of Materials Science and Engineering, University of Florida, Gainesville, Florida, USA
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Extract

A recent study concluded that addition of Fe203 to a soda borosilicate nuclear waste glass may significantly reduce damage by water attack due to formation of a Fe-rich film on the glass surface. However, differences in SiO2, B203, CaO, and concentration of fission products in previous glass compositions make it impossible to ascribe the improved leach resistance solely to Fe203 content. In the present work, leaching behavior of two glasses are compared which differ only by the substitution of Fe203 for some of the ZnO in the glass. Both glass compositions, Table 1, are compatible with the French AVM process and contain 9% (by weight) of simulated waste products characteristic of the Swedish nulcear waste program.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 11: Symposium – Scientific Basis for Nuclear Waste Management V , 1981 , 273
Copyright
Copyright © Materials Research Society 1982

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References

REFERENCES

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