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Compability of plasma sprayed tungsten based materials with graphite substrates

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    0335331 - ÚFP 2010 DE eng A - Abstract
    Boldyryeva, Hanna - Ctibor, Pavel - Brožek, Vlastimil - Cheong, D.-I. - Yang, S.H.
    Compability of plasma sprayed tungsten based materials with graphite substrates.
    [Kompatibilita plazmových nástřiků wolframových materiálů s grafitem.]
    Book of Abstracts - 12th International Workshop on Plasma-Facing Materials and Components for Fusion Applications. Juelich: Forschungszentrum Juelich, 2009. s. 54-54. ISBN N.
    [International Workshop on Plasma-Facing Materials and Components for Fusion Applications/12th./. 11.05.2009-14.05.2009, Juelich]
    Institutional research plan: CEZ:AV0Z20430508
    Keywords : Tungsten coatings * zirconium carbide * plasma spraying * compatibility with graphite * graphite substrates
    Subject RIV: BL - Plasma and Gas Discharge Physics
    http://www.fz-juelich.de/conference/datapool/page/259/PFMC-12%20-%20Book%20of%20abstracts.pdf

    A mixture of W powder was prepared with 3 to 20 vol. % of ZrC. This feedstock having an spheroidal character was fed into the plasma of the water-stabilized plasma (WSP®) gun by means of an inert gas carrier. Coatings of a thickness of about 1 mm were sprayed on various substrates, namely, graphite. Pure tungsten and pure ZrC were sprayed under similar conditions. Resulting coatings are well compatible with graphite and can serve as surface protection of various graphite substrates.

    Směs sferoidního práškového wolframu s příměsí 3 až 20 % karbidu zirkonia byla pomocí vodou stabilizovaného plazmového hořáku WSP® deponována na grafitové substráty. Byly ověřeny podmínky použití nosných a ochranných plynů při depozici čistého W a ZrC. Byla vyhodnocena mechanická pevnost a kompatibilita povlaků v závislosti na počáteční drsnosti styčných ploch substrátů.
    Permanent Link: http://hdl.handle.net/11104/0179824

     
     
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