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Tungsten and tungsten-alloys are presently considered to be the most
promising materials for plasma facing components for future fusion power
plants. The Karlsruhe Institute of Technology (KIT) divertor design concept
for the future DEMO power plant is based on modular He-cooled finger units
and the development of suitable mass production methods for such parts was
needed. A time and cost effective near-net-shape forming process with the
advantage of shape complexity, material utilization and high final density
is Powder Injection Molding (PIM). This process allows also the joining of
two different materials e.g. tungsten with a doped tungsten alloy, without
brazing. The complete technological process of 2-Component powder injection
molding for tungsten materials and its application on producing real DEMO
divertor parts, characterization results of the finished parts e.g.
microstructure, hardness, density and joining zone quality are discussed in
this contribution.
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