Thermal expansion in UO2 determined by high-energy X-ray diffraction
Journal Article
·
· Journal of Nuclear Materials
- European Spallation Source ESS AB, Lund (Sweden)
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States); Stony Brook Univ., Stony Brook, NY (United States); Materials Development, Inc., Arlington Heights, IL (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States); Materials Development, Inc., Arlington Heights, IL (United States)
- Stony Brook Univ., Stony Brook, NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
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.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC00112704; AC02-06CH11357; DE SC0007564; FG02-09ER46650
- OSTI ID:
- 1346746
- Alternate ID(s):
- OSTI ID: 1328451
- Report Number(s):
- BNL-113574-2017-JA; TRN: US1701819
- Journal Information:
- Journal of Nuclear Materials, Vol. 479, Issue C; ISSN 0022-3115
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 9 works
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