Corrosion of uranium in liquid water under vacuum contained conditions. Part 1: The initial binary U + H 2 O (l) system

A. Banos*, K. R. Hallam, T. B. Scott

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

4 Citations (Scopus)
139 Downloads (Pure)

Abstract

The reaction of unirradiated-U with liquid water was investigated under initial vacuum-contained conditions. Ten samples were examined at varying temperatures and reaction times. Post-corrosion examination of the surfaces was conducted using FIB, SIMS and XRD. Measurements of the reacting water pH and degassing of the samples was conducted after the reaction was stopped. From the analyses, it was concluded that bulk-UH 3 formation occurred on the majority of the samples. It is suggested that UH 3 formation was facilitated by a critical ‘threshold’ headspace pressure ∼0.5bar over which pressure deficiency is observed in the free headspace.

Original languageEnglish
Pages (from-to)249-260
Number of pages12
JournalCorrosion Science
Volume152
Early online date12 Mar 2019
DOIs
Publication statusPublished - 15 May 2019

Keywords

  • Bulk-UH
  • FIB
  • Threshold pressure
  • Uranium
  • Water corrosion

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