Hauptseite > Publikationsdatenbank > Performance assessment of thick W/Cu graded interlayer for DEMO divertor target > print

001     877729
005     20240709094317.0
024 7 _ |a 10.1016/j.fusengdes.2020.111610
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024 7 _ |a 0920-3796
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024 7 _ |a 1873-7196
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037 _ _ |a FZJ-2020-02427
082 _ _ |a 530
100 1 _ |a Richou, M.
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245 _ _ |a Performance assessment of thick W/Cu graded interlayer for DEMO divertor target
260 _ _ |a New York, NY [u.a.]
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520 _ _ |a 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.
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700 1 _ |a Gallay, F.
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700 1 _ |a Böswirth, B.
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700 1 _ |a Chu, I.
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700 1 _ |a Dose, G.
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700 1 _ |a Greuner, H.
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700 1 _ |a Kermouche, G.
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700 1 _ |a Lenci, M.
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700 1 _ |a Loewenhoff, Th.
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700 1 _ |a Maestracci, R.
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700 1 _ |a Meillot, E.
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700 1 _ |a Missirlian, M.
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700 1 _ |a Pastor, J. Y.
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700 1 _ |a Quet, A.
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700 1 _ |a Roccella, S.
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700 1 _ |a Tejado, E.
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700 1 _ |a Visca, E.
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700 1 _ |a Pintsuk, G.
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700 1 _ |a You, J. H.
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700 1 _ |a Wirtz, Marius
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773 _ _ |a 10.1016/j.fusengdes.2020.111610
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856 4 _ |u https://juser.fz-juelich.de/record/877729/files/L%C3%B6wenhoff%20-%20Performance%20assessment%20of%20thick%20WCu%20graded%20interlayer%20for%20DEMO%20divertor.pdf
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