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@ARTICLE{Lemahieu:808662,
author = {Lemahieu, N. and Greuner, H. and Linke, Jochen and Maier,
H. and Pintsuk, Gerald and Wirtz, Marius and Van Oost, Guido
and Noterdaeme, J.-M.},
title = {{T}hermal {S}hock {B}ehaviour of {H} and {H}/{H}e-{E}xposed
{T}ungsten at {H}igh {T}emperature},
journal = {Physica scripta},
volume = {T167},
issn = {0031-8949},
address = {Bristol},
publisher = {IoP Publ.},
reportid = {FZJ-2016-02295},
pages = {014008},
year = {2016},
abstract = {Polycrystalline tungsten samples were characterized and
exposed to a pure H beam or mixed H/He beam containing $6\%$
He in GLADIS at a surface temperature of 600 °C, 1000 °C,
or 1500 °C. After 5400 s of exposure time with a heat flux
of 10.5 MW m−2, the total accumulated fluence of 2 × 1025
m−2 was reached. Thereafter, edge localized mode
(ELM)-like thermal shocks with a duration of 1 ms and an
absorbed power density of 190 MW m−2 and 380 MW m−2 were
applied on the samples in JUDITH 1. During the thermal
shocks, the base temperature was kept at 1000 °C. The
ELM-experiments with the lowest transient power density did
not result in any detected damage. The other tests showed
the beginning of crack formation for every sample, except
the sample pre-exposed with the pure H-beam at 1500 °C in
GLADIS. This sample was roughened, but did not show any
crack initiation. With exception to the roughened sample,
the category of ELM-induced damage for the pre-exposed
samples is identical to the reference tests without
pre-exposure to a particle flux.},
cin = {IEK-2 / IEK-4},
ddc = {530},
cid = {I:(DE-Juel1)IEK-2-20101013 / I:(DE-Juel1)IEK-4-20101013},
pnm = {174 - Plasma-Wall-Interaction (POF3-174)},
pid = {G:(DE-HGF)POF3-174},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000383504700009},
doi = {10.1088/0031-8949/T167/1/014008},
url = {https://juser.fz-juelich.de/record/808662},
}