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Title: Thermal expansion in UO 2 determined by high-energy X-ray diffraction

In this study, we present crystallographic analyses of high-energy X-ray diffraction data on polycrystalline UO 2 up to the melting temperature. The Rietveld refinements of our X-ray data are in agreement with previous measurements, but are systematically located around the upper bound of their uncertainty, indicating a slightly steeper trend of thermal expansion compared to established values. This observation is consistent with recent first principles calculations.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [4] ;  [5] ;  [2]
  1. European Spallation Source ESS AB, Lund (Sweden)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States); Stony Brook Univ., Stony Brook, NY (United States); Materials Development, Inc., Arlington Heights, IL (United States)
  4. Argonne National Lab. (ANL), Argonne, IL (United States); Materials Development, Inc., Arlington Heights, IL (United States)
  5. Stony Brook Univ., Stony Brook, NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Report Number(s):
BNL-113574-2017-JA
Journal ID: ISSN 0022-3115; TRN: US1701819
Grant/Contract Number:
SC00112704; DE SC0007564
Type:
Accepted Manuscript
Journal Name:
Journal of Nuclear Materials
Additional Journal Information:
Journal Volume: 479; Journal Issue: C; Journal ID: ISSN 0022-3115
Publisher:
Elsevier
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
OSTI Identifier:
1346746
Alternate Identifier(s):
OSTI ID: 1328451

Guthrie, M., Benmore, C. J., Skinner, L. B., Alderman, O. L. G., Weber, J. K. R., Parise, J. B., and Williamson, M.. Thermal expansion in UO2 determined by high-energy X-ray diffraction. United States: N. p., Web. doi:10.1016/j.jnucmat.2016.06.042.
Guthrie, M., Benmore, C. J., Skinner, L. B., Alderman, O. L. G., Weber, J. K. R., Parise, J. B., & Williamson, M.. Thermal expansion in UO2 determined by high-energy X-ray diffraction. United States. doi:10.1016/j.jnucmat.2016.06.042.
Guthrie, M., Benmore, C. J., Skinner, L. B., Alderman, O. L. G., Weber, J. K. R., Parise, J. B., and Williamson, M.. 2016. "Thermal expansion in UO2 determined by high-energy X-ray diffraction". United States. doi:10.1016/j.jnucmat.2016.06.042. https://www.osti.gov/servlets/purl/1346746.
@article{osti_1346746,
title = {Thermal expansion in UO2 determined by high-energy X-ray diffraction},
author = {Guthrie, M. and Benmore, C. J. and Skinner, L. B. and Alderman, O. L. G. and Weber, J. K. R. and Parise, J. B. and Williamson, M.},
abstractNote = {In this study, we present crystallographic analyses of high-energy X-ray diffraction data on polycrystalline UO2 up to the melting temperature. The Rietveld refinements of our X-ray data are in agreement with previous measurements, but are systematically located around the upper bound of their uncertainty, indicating a slightly steeper trend of thermal expansion compared to established values. This observation is consistent with recent first principles calculations.},
doi = {10.1016/j.jnucmat.2016.06.042},
journal = {Journal of Nuclear Materials},
number = C,
volume = 479,
place = {United States},
year = {2016},
month = {6}
}