Radiation damage in WC studied with MD simulations

Petra Träskelin, Carolina Björkas, Niklas Juslin, Katharina Vörtler, Kai Nordlund

    Forskningsoutput: TidskriftsbidragKonferensartikelVetenskapligPeer review

    Sammanfattning

    Studying radiation damage in tungsten carbide (WC) is of importance due to its applications in fusion reactors. We have used molecular dynamics to study both deuterium induced sputtering and modification of WC surfaces and collision cascades in bulk WC. For collision cascades in bulk WC we note a massive recombination and major elemental asymmetry for the damage. Studying the erosion of WC surfaces, we find that C can erode through swift chemical sputtering, while W does not sputter more easily than from pure W. The amorphization of the surface and the D-content due to the D bombardment is important for the damage production and sputtering process. (c) 2007 Elsevier B.V. All rights reserved.
    Originalspråkengelska
    TidskriftNuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
    Volym257
    Utgåva1-2
    Sidor (från-till)614-617
    Antal sidor4
    ISSN0168-583X
    DOI
    StatusPublicerad - 2007
    MoE-publikationstypA4 Artikel i en konferenspublikation
    EvenemangUnknown host publication - , Holland
    Varaktighet: 1 jan 1800 → …

    Citera det här

    Träskelin, Petra ; Björkas, Carolina ; Juslin, Niklas ; Vörtler, Katharina ; Nordlund, Kai. / Radiation damage in WC studied with MD simulations. I: Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2007 ; Vol. 257, Nr. 1-2. s. 614-617.
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    title = "Radiation damage in WC studied with MD simulations",
    abstract = "Studying radiation damage in tungsten carbide (WC) is of importance due to its applications in fusion reactors. We have used molecular dynamics to study both deuterium induced sputtering and modification of WC surfaces and collision cascades in bulk WC. For collision cascades in bulk WC we note a massive recombination and major elemental asymmetry for the damage. Studying the erosion of WC surfaces, we find that C can erode through swift chemical sputtering, while W does not sputter more easily than from pure W. The amorphization of the surface and the D-content due to the D bombardment is important for the damage production and sputtering process. (c) 2007 Elsevier B.V. All rights reserved.",
    author = "Petra Tr{\"a}skelin and Carolina Bj{\"o}rkas and Niklas Juslin and Katharina V{\"o}rtler and Kai Nordlund",
    note = "Volume: 257 Host publication title: 15th International Conference on Ion Beam Modification of Materials Proceeding volume:",
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    Radiation damage in WC studied with MD simulations. / Träskelin, Petra; Björkas, Carolina; Juslin, Niklas; Vörtler, Katharina; Nordlund, Kai.

    I: Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, Vol. 257, Nr. 1-2, 2007, s. 614-617.

    Forskningsoutput: TidskriftsbidragKonferensartikelVetenskapligPeer review

    TY - JOUR

    T1 - Radiation damage in WC studied with MD simulations

    AU - Träskelin, Petra

    AU - Björkas, Carolina

    AU - Juslin, Niklas

    AU - Vörtler, Katharina

    AU - Nordlund, Kai

    N1 - Volume: 257 Host publication title: 15th International Conference on Ion Beam Modification of Materials Proceeding volume:

    PY - 2007

    Y1 - 2007

    N2 - Studying radiation damage in tungsten carbide (WC) is of importance due to its applications in fusion reactors. We have used molecular dynamics to study both deuterium induced sputtering and modification of WC surfaces and collision cascades in bulk WC. For collision cascades in bulk WC we note a massive recombination and major elemental asymmetry for the damage. Studying the erosion of WC surfaces, we find that C can erode through swift chemical sputtering, while W does not sputter more easily than from pure W. The amorphization of the surface and the D-content due to the D bombardment is important for the damage production and sputtering process. (c) 2007 Elsevier B.V. All rights reserved.

    AB - Studying radiation damage in tungsten carbide (WC) is of importance due to its applications in fusion reactors. We have used molecular dynamics to study both deuterium induced sputtering and modification of WC surfaces and collision cascades in bulk WC. For collision cascades in bulk WC we note a massive recombination and major elemental asymmetry for the damage. Studying the erosion of WC surfaces, we find that C can erode through swift chemical sputtering, while W does not sputter more easily than from pure W. The amorphization of the surface and the D-content due to the D bombardment is important for the damage production and sputtering process. (c) 2007 Elsevier B.V. All rights reserved.

    U2 - 10.1016/j.nimb.2007.01.091

    DO - 10.1016/j.nimb.2007.01.091

    M3 - Conference article

    VL - 257

    SP - 614

    EP - 617

    JO - Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms

    JF - Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms

    SN - 0168-583X

    IS - 1-2

    ER -