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@ARTICLE{Richou:877729,
author = {Richou, M. and Gallay, F. and Böswirth, B. and Chu, I. and
Dose, G. and Greuner, H. and Kermouche, G. and Lenci, M. and
Loewenhoff, Th. and Maestracci, R. and Meillot, E. and
Missirlian, M. and Pastor, J. Y. and Quet, A. and Roccella,
S. and Tejado, E. and Visca, E. and Pintsuk, G. and You, J.
H. and Wirtz, Marius},
title = {{P}erformance assessment of thick {W}/{C}u graded
interlayer for {DEMO} divertor target},
journal = {Fusion engineering and design},
volume = {157},
issn = {0920-3796},
address = {New York, NY [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2020-02427},
pages = {111610 -},
year = {2020},
abstract = {The development of a divertor target for DEMO is of great
importance, being able to sustain the harsh environment that
is imposed on this component. To fulfill the loading
requirements, different concepts were developed within the
EUROfusion WPDIV project. The baseline concept is based on
the ITER divertor target W-monoblock design. It is made of
tungsten as armour material, CuCrZr as structural material
and Cu-OFHC as compliant layer. One of the proposed
alternative concepts aims to minimize the stress at
interfaces by replacing the thick copper interlayer by W/Cu
functionally graded material (FGM). In this study, the FGM
interlayer, with a thickness of 500 μm, is composed of
stacked elementary layers with the following three
compositions: $25 vol.\%W + 75 vol.\%Cu,$
$50 vol.\%W + 50 vol.\%Cu,$
$75 vol.\%W + 25 vol.\%Cu.$ Several FGM interlayers
were studied. In total three monoblock type mock-ups were
manufactured. This paper describes the steps needed to
manufacture mock-ups and characterization of elementary
layers (composition, porosity, Young’s modulus). HHF tests
applying up to 1000 cycles at 20 MW/m² and sub-sequent
post-mortem examinations were performed to qualify the
concept performance.},
cin = {IEK-2},
ddc = {530},
cid = {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:000552963400015},
doi = {10.1016/j.fusengdes.2020.111610},
url = {https://juser.fz-juelich.de/record/877729},
}