Observation of oxygen Frenkel disorder in uranium dioxide above 2000 K by use of neutron-scattering techniques

Clausen, K., Hayes, W., Macdonald, John Emyr ORCID: https://orcid.org/0000-0001-5504-1692, Osborn, R. and Hutchings, M. 1984. Observation of oxygen Frenkel disorder in uranium dioxide above 2000 K by use of neutron-scattering techniques. Physical Review Letters 52 (14) , pp. 1238-1241. 10.1103/PhysRevLett.52.1238

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Abstract

Diffraction and coherent diffuse quasielastic scattering of neutrons have been used to investigate Frenkel disorder of the oxygen sublattice in single crystals of stoichiometric UO2. Measurements were made up to 2900 K using a special high-temperature furnace. The results provide the first direct evidence for the occurrence of Frenkel disorder in UO2 and enable estimates of the defect concentration and activation energy to be made.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QC Physics
Publisher:	American Physical Society
ISSN:	0031-9007
Last Modified:	24 Oct 2022 10:53
URI:	https://orca.cardiff.ac.uk/id/eprint/46298

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