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@ARTICLE{Coenen:827016,
author = {Coenen, J. W. and Berger, M. and Demkowicz, M. J. and
Matveev, D. and Manhard, A. and Neu, R. and Riesch, J. and
Unterberg, B. and Wirtz, Marius and Linsmeier, Ch.},
title = {{P}lasma-wall interaction of advanced materials},
journal = {Nuclear materials and energy},
volume = {12},
issn = {2352-1791},
address = {Amsterdam [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2017-01222},
pages = {307-312},
year = {2017},
abstract = {DEMO is the name for the first stage prototype fusion
reactor considered to be the next step after ITER. For the
realization of fusion energy especially materials questions
pose a significant challenge already today. Advanced
materials solution are under discussion in order to allow
operation under reactor conditions [1] and are already under
development used in the next step devices. Apart from issues
related to material properties such as strength, ductility,
resistance against melting and cracking one of the major
issues to be tackled is the interaction with the fusion
plasma. Advanced tungsten (W) materials as discussed below
do not necessarily add additional lifetime issues, they
will, however, add concerns related to erosion or surface
morphology changes due to preferential sputtering. Retention
of fuel and exhaust species are one of the main concerns.
Retention of hydrogen will be one of the major issues to be
solved in advanced materials as especially composites and
alloys will introduce new hydrogen interactions mechanisms.
Initial calculations show these mechanisms. Especially for
Helium as the main impurity species material issues arise
related to surfaces modification and embrittlement.
Solutions are proposed to mitigate effects on material
properties and introduce new release mechanisms.},
cin = {IEK-4 / IEK-2},
ddc = {333.7},
cid = {I:(DE-Juel1)IEK-4-20101013 / I:(DE-Juel1)IEK-2-20101013},
pnm = {174 - Plasma-Wall-Interaction (POF3-174)},
pid = {G:(DE-HGF)POF3-174},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000417293300045},
doi = {10.1016/j.nme.2016.10.008},
url = {https://juser.fz-juelich.de/record/827016},
}