Study of deuterium retention in Be-W coatings with distinct roughness profiles

R. Mateus (Corresponding Author), Antti Hakola, V. Tiron, C. Porosnicu, C.P. Lungu, E. Alves

    Research output: Contribution to journalArticleScientificpeer-review

    4 Citations (Scopus)

    Abstract

    Three batches of pure beryllium (Be), pure tungsten (W) and mixed Be:W (50:50) coatings were deposited by using the thermionic vacuum arc (TVA) technique. Different superficial roughness and morphologies were obtained by adjusting the bias voltages in the substrate holder. The coatings were irradiated afterwards with 15keV 2H+ ions up to a fluence of 5e17ion/cm2 with the purpose to investigate the influence of the roughness parameters on the retention of deuterium in Be-W deposits in the absence of other co-deposited impurities. Current densities lower than 0.2W/cm2 were used to avoid the release of deuterium induced by heating loads. The results of the experiment point to the negligible effect of rugosity on the retention behaviour under energetic ion bombardment.
    Original languageEnglish
    Pages (from-to)464-467
    Number of pages4
    JournalFusion Engineering and Design
    Volume124
    Early online date2017
    DOIs
    Publication statusPublished - 1 Nov 2017
    MoE publication typeA1 Journal article-refereed

    Keywords

    • beryllium
    • tungsten
    • retention
    • surface morphology

    Fingerprint Dive into the research topics of 'Study of deuterium retention in Be-W coatings with distinct roughness profiles'. Together they form a unique fingerprint.

  • Cite this