Göttingen 2025 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
P: Fachverband Plasmaphysik
P 22: Plasma Wall Interaction/HEPP
P 22.2: Vortrag
Donnerstag, 3. April 2025, 16:45–17:10, ZHG102
Manufacturing and testing of optimized composite heat sinks for plasma-facing component applications — •Robert Lürbke1,2, Alexander von Müller2, Bernd Böswirth2, Henri Greuner2, Johann Riesch2, Georg Schlick3, and Rudolf Neu1,2 — 1Technical University Munich, 85748 Garching, Germany — 2Max Planck Institute for Plasma Physics, 85748 Garching, Germany — 3Fraunhofer Institute for Casting, Composite and Processing Technology IGCV, 86159 Augsburg, Germany
In future magnetic confinement fusion reactors, plasma-facing components (PFCs) of the divertor will be subjected to high heat loads and intense neutron irradiation. This requires the development of reliable materials and robust component designs. An established state-of-the-art divertor PFC design is the so-called tungsten monoblock concept, which exhibits good damage resilience but is restricted in its width requiring a large number of PFCs. The so-called flat-tile is another well-known design option, which exhibits good heat removal capabilities, but there are basic concerns about the structural integrity of the material joints. In this study, we demonstrate the manufacturing and testing of a design that combines the advantages of both abovementioned PFC design approaches with an optimized tailored composite. Such composite structures are manufactured by infiltrating additively manufactured tungsten preforms with a copper (alloy) matrix. The contribution summarizes the results of high heat flux tests on different PFC mock-up specimens that were tested under cyclic loading at heat loads up to 20 MW/m2.
Keywords: plasma-facing composites; high heat flux tests; additive manufacturing; metal matrix composites; tungste-copper composites