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Investigation of the Oxidation State of Uranium in Nuclear Materials and their Alteration Products

Published online by Cambridge University Press:  21 March 2011

Edgar C. Buck ,
Michael Colella ,
Katherine L. Smith  and
Gregory R. Lumpkin
Edgar C. Buck
Affiliation:
Radiochemical Processing Laboratory, Pacific Northwest National Laboratory, 902 Battelle Blvd, Richland, WA99352, U.S.A.
Michael Colella
Affiliation:
Materials Division, Australian Nuclear Science and Technology Organisation, P.M.B. 1, Menai, NSW 2234, Australia.
Katherine L. Smith
Affiliation:
Materials Division, Australian Nuclear Science and Technology Organisation, P.M.B. 1, Menai, NSW 2234, Australia.
Gregory R. Lumpkin
Affiliation:
Materials Division, Australian Nuclear Science and Technology Organisation, P.M.B. 1, Menai, NSW 2234, Australia.
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Abstract

In this study, the oxidation state of uranium was investigated with Electron Energy-Loss Spectroscopy on the Transmission Electron Microscope. The oxygen K edge in a series of uranium-bearing phases was investigated and this technique was compared to an alternative method of using the relative intensities of the M4,5- edges of the actinides. Under controlled conditions, it is possible to obtain reliable oxidation state data on uranium solids; however, mixtures of oxidation states in a single compound cannot be distinguished with certainty.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 713: Symposium JJ – Scientific Basis for Nuclear Waste Management XXV , 2002 , JJ11.65
Copyright
Copyright © Materials Research Society 2002

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References

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