Effect of ageing in the electrolyte and water on porous anodic films on zirconium

F. Muratore, T. Hashimoto, P. Skeldon, G. E. Thompson

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The present study demonstrates the significant influence of ageing in the formation electrolyte on the morphology and composition of anodic films grown on zirconium in 0.35. M ammonium fluoride in glycerol. Ageing after anodizing, by immersion in the electrolyte for 1. h, is shown to promote a transition from a porous to a nanotubular morphology, due to the dissolution of the fluoride-rich intratubular material in which the nanotubes are embedded. The morphological change is accompanied by a significant loss of zirconium and fluorine from the film. In contrast, ageing in deionized water has little influence on the films. © 2011 Elsevier Ltd.
    Original languageEnglish
    Pages (from-to)2299-2305
    Number of pages6
    JournalCorrosion Science
    Volume53
    Issue number6
    DOIs
    Publication statusPublished - Jun 2011

    Keywords

    • A. Zirconium
    • B. RBS
    • B. SEM
    • B. TEM
    • C. Anodic films

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