The crystallographic structure of the air-grown oxide on depleted uranium metal

Christopher P. Jones, James R. Petherbridge, Sean A. Davis, Jonathan Jones, Thomas B. Scott

Research output: Contribution to journalArticle (Academic Journal)peer-review

11 Citations (Scopus)
238 Downloads (Pure)

Abstract

Oxide formation on depleted uranium metal was investigated using a combination of electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM) characterisation. Diffraction analysis of the oxide revealed an FCC crystalline formation of UO2 crystallites whilst TEM data indicated an average grain size of 12 nm with a standard deviation of 3.8 nm. EBSD analysis revealed a preferential texture of [110] normal to the surface of the metal. This data implied that lattice matching between the oxide and the underlying metal did not occur, therefore, the observed preferential growth direction is independent of the underlying crystal orientation.
Original languageEnglish
Pages (from-to)486–493
Number of pages8
JournalCorrosion Science
Volume111
Early online date25 May 2016
DOIs
Publication statusPublished - Oct 2016

Keywords

  • B. SEM
  • B. STEM
  • B. TEM
  • C. atmospheric corrosion
  • C. oxidation

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