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3D-printing for tungsten structures to hold liquid metal

Considering the evolution of high thermal stresses at the plasma facing surface (PFS) in fusion technology, a novel design for liquid metal divertor targets were developed of tungsten using 3D-printing. By introducing designed voids in the tungsten structure, they can serve simultaneously as both reservoir for the liquid metals (LM), and as wicking channel up to the PFS. The structure holds a liquid lithium alloy that protects the plasma-facing components through conduction of heat and vapor shielding.

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