Journal Article

FZJ-2024-03615

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png The lattice contraction of UO2 from Cr doping as determined via high resolution synchrotron X-ray powder diffraction

Murphy, G. L. (Corresponding author)FZJ* ; Svitlyk, V. ; Henkes, M.FZJ* ; Shirokiy, D.FZJ* ; Hennig, C. ; Kegler, P.FZJ* ; Bosbach, D.FZJ* ; Bukaemskiy, A.FZJ*

2024
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.jnucmat.2024.155046  doi:10.34734/FZJ-2024-03615

Abstract: High resolution synchrotron powder X-ray diffraction analysis of Cr-doped UO2 samples with additions of Cr2O3as 0, 500, 1000, 1500, 2500 to 3500 ppm prepared under sintering conditions of -420 kJ/mol and 1700 ◦C isreported. The lattice dependence from Cr doping is established through the Rietveld refinement method wherethe rate of linear lattice parameter contraction from Cr doping, Δacr, was found to be considerably smaller andmore subtle than previously described. This investigation highlights the need for high resolution and precisespecimen preparation when measuring and interpreting subtle changes to nuclear material crystal structures dueto trace doping.

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Contributing Institute(s):

1. Nukleare Entsorgung (IEK-6)

Research Program(s):

1. 1411 - Nuclear Waste Disposal (POF4-141) (POF4-141)
2. BMBF 02NUK060B - Verbundprojekt AcE: Grundlegende Untersuchungen zur Immobilisierung von Actiniden mittels Einbau in endlagerrelevante Festphasen, Teilprojekt B (02NUK060B) (02NUK060B)

Appears in the scientific report 2024

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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