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Characterization of Powder Injection Molded and Spark Plasma Sintered Tungsten Materials as Plasma Facing Materials for DEMO

Pintsuk, G.; Antusch, S.; Matejicek, J.; Vilemova, M.

Abstract:
Tungsten based materials are attractive to be used in various applications for fusion power plants. Besides its advantages the main drawbacks are its brittleness and correlated difficult machinability as well as the narrow range of possible alloys using the commercial fabrication route. Both issues are addressed by the development and fabrication of complex near-net shaped tungsten parts via Powder Injection Molding (PIM). R&D in this field is done within the EUROfusion materials development project, where various PIM-W materials were investigated and W-1TiC and W2Y2O3 were yet selected as the most promising material compositions which will also be subject to neutron irradiation studies in the future.

Outside of the EUROfusion project, alternative material development is ongoing using different approaches concerning manufacturing method and variations in composition. One of these methods is spark plasma sintering (SPS) and the material compositions produced are W-2.5TiC, W-0.3Ti-2Ta-0.5Y and W-10Cr-1Hf.

Characterization of the materials was performed determining the materials microstructure and hardness and by performing h ... mehr


Zugehörige Institution(en) am KIT Institut für Angewandte Materialien - Werkstoffkunde (IAM-WK)
Publikationstyp Poster
Jahr 2017
Sprache Englisch
Identifikator KITopen ID: 1000075829
HGF-Programm 31.03.09; LK 01
Erschienen in The 18th International Conference on Fusion Reactor Materials, ICFRM-18, Aomori, Japan, 5th - 10th November 2017
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