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P: Fachverband Plasmaphysik
P 16: Poster Session Plasma Physics
P 16.116: Poster
Donnerstag, 19. März 2026, 13:45–15:45, Redoutensaal
Additive manufacturing for tailored tungsten copper joints in plasma-facing components — •Alberto Ambrogini1,2, Alexander von Müller1, and Rudolf Neu1,2 — 1Technical University of Munich — 2Max Planck Institute for Plasma Physics
Additive manufacturing (AM) technology has progressed significantly in recent years and holds the potential to become a decisive technology for the fabrication of plasma-facing components (PFCs). In highly heat loaded divertor PFCs, issues regarding the joining of plasma-facing tungsten materials with copper based heat sink materials represent a major engineering challenge, considering the differing thermomechanical properties of these two materials. Under heat flux loadings in magnetic confinement fusion devices, this leads to stress concentrations at the joining interface, that in turn can lead to undesired failure of PFCs. One possible solution for improving such material joints is the tailoring of the interface between the two materials with the help of AM that enables control of the geometry, composition, and microstructure at the interface. This allows the creation of a tailored interfacial region where common failure mechanisms, like joint delamination, might be avoided. The contribution will present relevant AM technologies considered to be suitable for the realisation of tailored tungsten-copper interfaces and approaches to the design of such joints. Furthermore, plans for their testing under relevant loading situations will be outlined.
Keywords: Additive Manufacturing; PFCs; Tungsten Copper Joint; Tailored Interface