ALTERATION OF U(VI)-PHASES UNDER OXIDIZING CONDITIONS
Abstract
Uranium-(VI) phases are the primary alteration products of the UO{sub 2} in spent nuclear fuel and the UO{sub 2+x}, in natural uranium deposits. The U(VI)-phases generally form sheet structures of edge-sharing UO{sub 2}{sup 2+} polyhedra. The complexity of these structures offers numerous possibilities for coupled-substitutions of trace metals and radionuclides. The incorporation of radionuclides into U(VI)-structures provides a potential barrier to their release and transport in a geologic repository that experiences oxidizing conditions. In this study, we have used natural samples of UO{sub 2+x}, to study the U(VI)-phases that form during alteration and to determine the fate of the associated trace elements.
- Authors:
- Publication Date:
- Research Org.:
- Yucca Mountain Project, Las Vegas, NV (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 884959
- Report Number(s):
- NA
MOL.20060330.0282, DC#47102; TRN: US0603732
- DOE Contract Number:
- NA
- Resource Type:
- Technical Report
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; ELEMENTS; NATURAL URANIUM; NUCLEAR FUELS; POTENTIALS; RADIOISOTOPES; TRACE AMOUNTS; TRANSPORT
Citation Formats
Deditius, A P, Utsunomiya, S, and Ewing, R C. ALTERATION OF U(VI)-PHASES UNDER OXIDIZING CONDITIONS. United States: N. p., 2006.
Web. doi:10.2172/884959.
Deditius, A P, Utsunomiya, S, & Ewing, R C. ALTERATION OF U(VI)-PHASES UNDER OXIDIZING CONDITIONS. United States. https://doi.org/10.2172/884959
Deditius, A P, Utsunomiya, S, and Ewing, R C. 2006.
"ALTERATION OF U(VI)-PHASES UNDER OXIDIZING CONDITIONS". United States. https://doi.org/10.2172/884959. https://www.osti.gov/servlets/purl/884959.
@article{osti_884959,
title = {ALTERATION OF U(VI)-PHASES UNDER OXIDIZING CONDITIONS},
author = {Deditius, A P and Utsunomiya, S and Ewing, R C},
abstractNote = {Uranium-(VI) phases are the primary alteration products of the UO{sub 2} in spent nuclear fuel and the UO{sub 2+x}, in natural uranium deposits. The U(VI)-phases generally form sheet structures of edge-sharing UO{sub 2}{sup 2+} polyhedra. The complexity of these structures offers numerous possibilities for coupled-substitutions of trace metals and radionuclides. The incorporation of radionuclides into U(VI)-structures provides a potential barrier to their release and transport in a geologic repository that experiences oxidizing conditions. In this study, we have used natural samples of UO{sub 2+x}, to study the U(VI)-phases that form during alteration and to determine the fate of the associated trace elements.},
doi = {10.2172/884959},
url = {https://www.osti.gov/biblio/884959},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 21 00:00:00 EST 2006},
month = {Tue Feb 21 00:00:00 EST 2006}
}
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.