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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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Camacho, Edgar
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024The Potential of Shape Memory Alloys in Riveting Applications
- 2024The Potential of Shape Memory Alloys in Riveting Applications
- 2021Comparison of design, metallurgy, mechanical performance and shaping ability of replica-like and counterfeit instruments of the ProTaper Next systemcitations
- 2020New material conceptscitations
- 2020Production and characterization of functionally graded NiTi shape memory alloys by Joule effectcitations
- 2020New Material Conceptscitations
- 2020Embedded fiber sensors to monitor temperature and strain of polymeric parts fabricated by additive manufacturing and reinforced with NiTi wirescitations
- 2019Graphene oxide-reinforced aluminium-matrix nanostructured composites fabricated by accumulative roll bondingcitations
- 2019In Situ Study Of Aging Under Stress Of Ni-Ti Shape Memory Alloy
- 2019In Situ Structural Characterization of Functionally Graded Ni–Ti Shape Memory Alloy During Tensile Loadingcitations
- 2019In Situ Structural Characterization of Functionally Graded Ni–Ti Shape Memory Alloy During Tensile Loadingcitations
- 2019New WC-Cu composites for the divertor in fusion reactorscitations
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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>