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Behavior and microstructural changes in different tungsten-based materials under pulsed plasma loading

  1. 1.
    0468206 - ÚFP 2017 RIV NL eng J - Článek v odborném periodiku
    Vilémová, Monika - Pala, Zdeněk - Jäger, Aleš - Matějíček, Jiří - Chernyshova, M. - Kowalska-Strzeciwilk, E. - Gribkov, V. A. - Janata, Marek
    Behavior and microstructural changes in different tungsten-based materials under pulsed plasma loading.
    Nuclear Materials and Energy. Roč. 9, December (2016), s. 123-127. ISSN 2352-1791.
    [International Conference of Fusion Reactor Material (ICFRM-17) /17./. Aachen, 11.10.2015-16.10.2015]
    Grant CEP: GA ČR(CZ) GA14-12837S
    Institucionální podpora: RVO:61389021 ; RVO:68378271
    Klíčová slova: ODS tungsten * yttrium oxide * porosity * phase stability * monoclinic phase * plasma focus * damage * erosion
    Kód oboru RIV: JJ - Ostatní materiály; JJ - Ostatní materiály (FZU-D)
    http://dx.doi.org/10.1016/j.nme.2016.06.004

    In this study, morphological, microstructural and phase changes of four types of tungsten materials after exposure to dense deuterium plasma were examined. The microstructures of the prepared materials mutually differ by the porosity, grain size and phase content. It was found that inherent porosity of sintered materials leads to a specific mechanism of erosion and might be a significant source of dust in the case of materials with higher porosity. Further, a preferential erosion of the dispersed particles by melting and evaporation and subsequent formation of thin film on the surface of W-Y2O3 was described as well.
    Trvalý link: http://hdl.handle.net/11104/0266056
     
Počet záznamů: 1