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Corrosion behavior of pyroclore-rich titanate ceramics for plutonium disposition ; impurity effects.

By A. J. Bakel

Abstract

The baseline ceramic contains Ti, U, Ca, Hf, Gd, and Ce, and is made up of only four phases, pyrochlore, zirconolite, rutile, and brannerite. The impurities present in the three other ceramics represent impurities expected in the feed, and result in different phase distributions. The results from 3 day, 90 C MCC-1 tests with impurity ceramics were significantly different than the results from tests with the baseline ceramic. Overall, the addition of impurities to these titanate ceramics alters the phase distributions, which in turn, affects the corrosion behavior

Topics: Rutile, Radioactive Waste Disposal, Waste Forms, 36 Materials Science, Phase Studies, Impurities, Titanates, Zirconolite, Pyrochlore, Brannerite, 12 Management Of Radioactive Wastes, And Non-Radioactive Wastes From Nuclear Facilities, Corrosion Resistance, Plutonium, Ceramics
Publisher: Argonne National Laboratory
Year: 1999
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Provided by: UNT Digital Library
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