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@ARTICLE{Lemahieu:819877,
author = {Lemahieu, Nathan and Balden, Martin and Elgeti, Stefan and
Greuner, Henri and Linke, Jochen and Maier, Hans and
Pintsuk, Gerald and Wirtz, Marius and Van Oost, Guido and
Noterdaeme, Jean-Marie},
title = {{H}/{H}e irradiation on tungsten exposed to {ELM}-like
thermal shocks},
journal = {Fusion engineering and design},
volume = {109-111},
issn = {0920-3796},
address = {New York, NY [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2016-05453},
pages = {169 - 174},
year = {2016},
abstract = {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.},
cin = {IEK-2 / IEK-4},
ddc = {620},
cid = {I:(DE-Juel1)IEK-2-20101013 / I:(DE-Juel1)IEK-4-20101013},
pnm = {174 - Plasma-Wall-Interaction (POF3-174) / HITEC -
Helmholtz Interdisciplinary Doctoral Training in Energy and
Climate Research (HITEC) (HITEC-20170406)},
pid = {G:(DE-HGF)POF3-174 / G:(DE-Juel1)HITEC-20170406},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000382421900030},
doi = {10.1016/j.fusengdes.2016.03.035},
url = {https://juser.fz-juelich.de/record/819877},
}