Influence of He/D2 plasma fluxes on the morphology and crystallinity of tungsten coatings

K Piip, P Paris, Antti Hakola, K Bstrov, G de Temmerman, M Aints, I Jõgi, J Kozlova, M Laan, Jari Likonen, A Lissovski, H Mändar

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    3 Citations (Scopus)

    Abstract

    Tungsten coatings were exposed to He/D2 plasma in the linear plasma machine Pilot PSI. Different He contents were used in the plasma. The sample surface temperature and plasma ion energy were varied. Changes in the surface morphology were studied using scanning electron microscopy (SEM) and x-ray diffraction (XRD). SEM images revealed that compared with the unexposed samples, there were significant changes in the surface morphology. The structures formed were strongly dependent on the experimental conditions. XRD spectra showed that exposure to plasma leads to an increase in the crystallite size and to a decrease in the lattice parameter
    Original languageEnglish
    Article number4
    JournalPhysica Scripta
    Volume89
    Issue number4
    DOIs
    Publication statusPublished - 2014
    MoE publication typeA1 Journal article-refereed

    Keywords

    • Coating characterization
    • helium-deuterium plasma
    • lasma surface interaction
    • tungsten coatings

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    Piip, K., Paris, P., Hakola, A., Bstrov, K., de Temmerman, G., Aints, M., Jõgi, I., Kozlova, J., Laan, M., Likonen, J., Lissovski, A., & Mändar, H. (2014). Influence of He/D2 plasma fluxes on the morphology and crystallinity of tungsten coatings. Physica Scripta, 89(4), [4]. https://doi.org/10.1088/0031-8949/89/04/044009