| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Correia, J. B.
National Laboratory of Energy and Geology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024Simulation, Structural, Thermal and Mechanical Properties of the FeTiTaVW High Entropy Alloycitations
- 2023Hybrid molecular dynamic Monte Carlo simulation and experimental production of a multi-component Cu–Fe–Ni–Mo–W alloycitations
- 2023Behavior of Cu-Y2O3 and CuCrZr-Y2O3 composites before and after irradiationcitations
- 2022Damage threshold of CuCrFeTiV high entropy alloys for nuclear fusion reactors
- 2019New WC-Cu composites for the divertor in fusion reactorscitations
- 2018Mechanical activation of pre-alloyed NiTi2 and elemental Ni for the synthesis of NiTi alloyscitations
- 2017Helium and deuterium irradiation effects in W-Ta composites produced by pulse plasma compactioncitations
- 2015The effects of tantalum addition on the microtexture and mechanical behaviour of tungsten for ITER applicationscitations
- 2014Multiscale Copper-uDiamond Nanostructured Composites
- 2014Elemental interdiffusion in W-Ta composites developed for fusion applications
- 2014Synergistic helium and deuterium blistering in tungsten–tantalum compositescitations
- 2013Nickel–carbon nanocomposites: Synthesis, structural changes and strengthening mechanismscitations
- 2013Recent progress in research on tungsten materials for nuclear fusion applications in Europecitations
- 2013Recent progress in research on tungsten materials for nuclear fusion applications in Europecitations
- 2013Multiscale copper-μdiamond nanostructured composites
- 2013Tungsten–nanodiamond composite powders produced by ball millingcitations
- 2011Microstructural characterization of the ODS Eurofer 97 EU-batch
- 2011Production of Cu/Diamond composites for first-wall heat sinks
- 2010Novel approach to plasma facing materials in nuclear fusion reactors
Places of action
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article
New WC-Cu composites for the divertor in fusion reactors
Abstract
<p>The requirements for the divertor components of future fusion reactors are challenging and therefore a stimulus for the development of new materials. In this paper, WC-Cu composites are studied for use as thermal barrier between the plasma facing tungsten tiles and the copper-based heat sink of the divertor. Composite materials with 50% vol. WC were prepared by hot pressing and characterized in terms of microstructure, density, expansion coefficient, elastic modulus, Young's modulus and thermal diffusivity. The produced materials consisted of WC particles homogeneously dispersed in a Cu matrix with densifications between 88% and 98%. The sample with WC particles coated with Cu evidenced the highest densification. The thermal diffusivity was significantly lower than that of pure copper or tungsten. The sample with higher densification exhibits a low value of Young's modulus (however, it is higher compared to pure copper), and an average linear thermal expansion coefficient of 13.6 × 10<sup>−6</sup> °C<sup>-1</sup> in a temperature range between 100 °C and 550 °C. To estimate the behaviour of this composite in actual conditions, a monoblock of the divertor in extreme conditions was modelled. The results predict that while the use of WC-Cu interlayer leads to an increase of 190 °C on the temperature of the upper part of the monoblock when compared to a pure Cu interlayer, the composite will improve and reduce significantly the cold-state stress between this interlayer and the tungsten.</p>