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@ARTICLE{Ueda:173218,
author = {Ueda, Y. and Coenen, J. W. and De Temmerman, G. and
Doerner, R. P. and Linke, J. and Philipps, V. and Tsitrone,
E.},
title = {{R}esearch status and issues of tungsten plasma facing
materials for {ITER} and beyond},
journal = {Fusion engineering and design},
volume = {89},
number = {7-8},
issn = {0920-3796},
address = {New York, NY [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2014-06629},
pages = {901-906},
year = {2014},
abstract = {This review summarizes surface morphology changes of
tungsten caused by heat and particle loadings from edge
plasmas, and their effects on enhanced erosion and material
lifetime in ITER and beyond. Pulsed heat loadings by
transients (disruption and ELM) are the largest concerns due
to surface melting, cracking, and dust formation. Hydrogen
induced blistering is unlikely to be an issue of ITER.
Helium bombardment would cause surface morphology changes
such as W fuzz, He holes, and nanometric bubble layers,
which could lead to enhanced erosion (e.g. unipolar arcing
of W fuzz). Particle loadings could enhance pulsed heat
effects (cracking and erosion) due to surface layer
embrittlement by nanometric bubbles and solute atoms. But
pulsed heat loadings alleviate surfaces morphology changes
in some cases (He holes by ELM-like heat pulses). Effects of
extremely high fluence (∼1030 m−2), mixed materials, and
neutron irradiation are important issues to be pursued for
ITER and beyond. In addition, surface refurbishment to
prolong material lifetime is also an important issue},
cin = {IEK-4 / IEK-2},
ddc = {620},
cid = {I:(DE-Juel1)IEK-4-20101013 / I:(DE-Juel1)IEK-2-20101013},
pnm = {135 - Plasma-wall interactions (POF2-135)},
pid = {G:(DE-HGF)POF2-135},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000341465400006},
doi = {10.1016/j.fusengdes.2014.02.078},
url = {https://juser.fz-juelich.de/record/173218},
}