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Production of Cu/Diamond composites for first-wall heat sinks
Nunes, D.; Correia, J. Brito; Carvalho, P. A.; Shohoji, Nobumitsu; Silva, C.; Fernandes, H.; Alves, L. C.; Hanada, K.; Osawa, E.Due to their suitable thermal conductivity and strength copper-based materials have been considered appropriate heat sinks for first wall panels in nuclear fusion devices. However, increased thermal conductivity and mechanical strength are demanded and the concept of property tailoring involved in the design of metal matrix composites advocates for the potential of nanodiamond dispersions in copper. Copper-nano...
Novel approach to plasma facing materials in nuclear fusion reactors
Livramento, Vanessa; Correia, J. Brito; Nunes, D.; Carvalho, P. A.; Fernandes, H.; Silva, C.; Hanada, K.; Shohoji, Nobumitsu; Osawa, E.A novel material design in nuclear fusion reactors is proposed based on W-nDiamond nanostructured composites. Generally, a microstructure refined to the nanometer scale improves the mechanical strength due to modification of plasticity mechanisms. Moreover, highly specific grainboundary area raises the number of sites for annihilation of radiation induced defects. However, the low thermal stability of fine-grai...
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