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Thermal expansion in UO2 determined by high-energy X-ray diffraction

Guthrie, M. LU ; Benmore, C. J.; Skinner, L. B.; Alderman, O. L G; Weber, J. K R; Parise, J. B. and Williamson, M. (2016) In Journal of Nuclear Materials 479. p.19-22
Abstract

Here 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.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Nuclear Materials
volume
479
pages
4 pages
publisher
Elsevier
external identifiers
  • scopus:84976870541
ISSN
0022-3115
DOI
10.1016/j.jnucmat.2016.06.042
language
English
LU publication?
yes
id
677c9c9e-b321-448c-bdf2-fa66c64812d7
date added to LUP
2016-10-26 07:37:20
date last changed
2017-09-17 09:30:24
@article{677c9c9e-b321-448c-bdf2-fa66c64812d7,
  abstract     = {<p>Here we present crystallographic analyses of high-energy X-ray diffraction data on polycrystalline UO<sub>2</sub> 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.</p>},
  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.},
  issn         = {0022-3115},
  language     = {eng},
  month        = {10},
  pages        = {19--22},
  publisher    = {Elsevier},
  series       = {Journal of Nuclear Materials},
  title        = {Thermal expansion in UO<sub>2</sub> determined by high-energy X-ray diffraction},
  url          = {http://dx.doi.org/10.1016/j.jnucmat.2016.06.042},
  volume       = {479},
  year         = {2016},
}