SMuK 2023 – wissenschaftliches Programm
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P: Fachverband Plasmaphysik
P 12: Poster II
P 12.44: Poster
Mittwoch, 22. März 2023, 17:30–19:00, HSZ EG
Tungsten-copper composites based on additively manufactured tungsten preforms for high heat flux applications — •Robert Lürbke1,2, Alexander von Müller2, Alexander Feichtmayer1,2, Thomas Bareth3, Armin Rieser3, Georg Schlick3, and Rudolf Neu1,2 — 1Max-Planck-Institut für Plasmaphysik, 85748 Garching, Deutschland — 2Technische Universität München, 85748 Garching, Deutschland — 3Fraunhofer IGCV, 86159 Augsburg, Deutschland
In future fusion reactors, plasma-facing components (PFCs) have to sustain high heat fluxes and neutron irradiation. This creates the need for advanced materials that can withstand such an environment. Tungsten (W) is considered the preferred plasma-facing material for use in fusion devices due to its low hydrogen retention, high melting point as well as its low physical sputtering yield. Against this background, additive manufacturing (AM) of W can be considered a useful tool to provide tailored W structures for reinforcing copper (Cu) based heat sinks due to a tailored thermomechanical behaviour. The present contribution will illustrate the possibilities of tailoring macroscopic properties of W-Cu PFC materials. In this context, basic observations like rules of mixture for composite materials will be discussed. Based on that, it will be shown how the exploitation of complex composite structures can open up new possibilities for material and component design.