Testing of tungsten coatings in JET for the ITER-like wall

J.P. Coad (Corresponding Author), D.E. Hole, Jari Likonen, S. Lindig, G.F. Matthews, M. Mayer, V. Philipps, V. Riccardo, E. Vainonen-Ahlgren, A. Widdowson, JET-EFDA Contributors

    Research output: Contribution to journalArticleScientificpeer-review

    8 Citations (Scopus)

    Abstract

    A CFC tile 5 from the JET outer divertor, and CFC tiles from neutral beam shine-through and re-ionisation regions were coated with tungsten and exposed during the 2005-7 JET campaigns in preparation for the ITER-like wall project. Approximately 1.6 microns of coating were eroded from the tile 5 during high-delta discharges when the outer strike-point is on the tile. The coatings on the other tiles were unaffected by NB-heating and divertor discharges, however a tile mounted near the centre of the Inner Wall Guard Limiter lost all its coating from the surface within 10 mm of the tile leading edge; this probably occurred during the ramp-up phase of JET discharges.
    Original languageEnglish
    Pages (from-to)992-995
    Number of pages4
    JournalJournal of Nuclear Materials
    Volume390-391
    DOIs
    Publication statusPublished - 2009
    MoE publication typeA1 Journal article-refereed
    Event18th International Conference on Plasma-Surface Interactions in Controlled Fusion Device, 26-30 May 2008, Toledo, Spain -
    Duration: 1 Jan 2009 → …

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