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Mechanical and microstructural investigations of tungsten and doped tungsten materials produced via powder injection molding

Antusch, S.; Armstrong, D.E.J.; Britton, T.B.; Commin, L.; Gibson, J.S.K.L.; Greuner, H.; Hoffmann, J.; Knabl, W.; Pintsuk, G.; Rieth, M.; Roberts, S.G.; Weingaertner, T.

Abstract The physical properties of tungsten such as the high melting point of 3420°C, the high strength and thermal conductivity, the low thermal expansion and low erosion rate make this material attractive as a plasma facing material. However, the manufacturing of such tungsten parts by mechanical machining such as milling and turning is extremely costly and time intensive because this material is very hard and brittle. Powder Injection Molding (PIM) as special process allows the mass production of components, the joining of different materials without brazing and the creation of composite and prototype materials, and is an ideal tool for scientific investigations. This contribution describes the characterization and analyses of prototype materials produced via PIM. The investigation of the pure tungsten and oxide or carbide doped tungsten materials comprises the microstructure examination, element allocation, texture analyses, and mechanical testing via four-point bend (4-PB). Furthermore, the different materials were characterized by high heat flux (HHF) tests applying transient thermal loads at different base temperatures to address thermal shock and thermal fatigue performance. ... mehr

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DOI: 10.5445/IR/1000049443
DOI: 10.1016/j.nme.2015.04.002
Zitationen: 41
Cover der Publikation
Zugehörige Institution(en) am KIT Fakultät für Maschinenbau (MACH)
Institut für Angewandte Materialien - Angewandte Werkstoffphysik (IAM-AWP)
Institut für Angewandte Materialien - Werkstoffkunde (IAM-WK)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2015
Sprache Englisch
Identifikator ISSN: 2352-1791
KITopen-ID: 1000049443
HGF-Programm 31.03.07 (POF III, LK 01)
Erschienen in Nuclear Materials and Energy
Band 3
Heft 3-4
Seiten 22 - 31
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Schlagwörter Powder Injection Molding (PIM); Tungsten; Doped tungsten materials; Mechanical properties; HHF testing
Nachgewiesen in Scopus
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