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001     819877
005     20240711113534.0
024 7 _ |a 10.1016/j.fusengdes.2016.03.035
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024 7 _ |a 0920-3796
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024 7 _ |a 1873-7196
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100 1 _ |a Lemahieu, Nathan
|0 P:(DE-Juel1)145757
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245 _ _ |a H/He irradiation on tungsten exposed to ELM-like thermal shocks
260 _ _ |a New York, NY [u.a.]
|c 2016
|b Elsevier
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520 _ _ |a ELM-like thermal shocks and H/He particle exposure were subsequently applied on tungsten samples. Polished test specimens underwent in the JUDITH 1 electron beam facility 100 transient thermal events with a duration of 1 ms. The absorbed heat flux was 0.4 GW m−2 and 1.5 GW m−2, which is above the material's damage threshold. These experiments were done at room temperature and with the samples heated to 400 °C base temperature. Depending on the loading conditions the test specimens have either a crack network or showed surface roughening. The samples were then loaded in the GLADIS facility at different surface temperatures with a mixed H/He beam with a flux of 3.7 × 1021 m−2 s−1. Post-mortem analysis showed that the roughened surface did not alter the H/He induced surface modifications. In contrast to that on the test specimens that exhibited crack formation, phenomena such as bubble creation along the crack edge, formation of a shallow layer of nano-structures covering the crack opening, and the emerging of a porous structure which partially fills the crack are observed.
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700 1 _ |a Balden, Martin
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700 1 _ |a Elgeti, Stefan
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700 1 _ |a Greuner, Henri
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700 1 _ |a Linke, Jochen
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700 1 _ |a Maier, Hans
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700 1 _ |a Pintsuk, Gerald
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700 1 _ |a Wirtz, Marius
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700 1 _ |a Van Oost, Guido
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700 1 _ |a Noterdaeme, Jean-Marie
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773 _ _ |a 10.1016/j.fusengdes.2016.03.035
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