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On the potential of tungsten–vanadium composites for high temperature application with wide-range thermal operation window

Hohe, Jörg; Gumbsch, Peter 1
1 Fakultät für Maschinenbau – Institut für Zuverlässigkeit von Bauteilen und Systemen (IZBS), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

The present study is concerned with the numerical design of a composite material consisting of tungsten and vanadium for application in future nuclear fusion plants. The proposed composite material combines a significant creep resistance at high temperatures with a reasonable fracture toughness in the low temperature range and, compared to its constituents, features an enhanced thermal operation window. In a first step, a numerical screening analysis is performed for a comparison of different types of composite materials including particle, short fiber and infinite fiber reinforced composites with both, regular and random microstructures. The different options are compared with respect to their thermal and mechanical properties as well as their creep resistance. In a preliminary experimental investigation, a first trial heat of the composite is processed and tested for its creep resistance at 1000 °C and its fracture toughness at ambient temperature. The results reveal a distinct potential of the material.

DOI: 10.1016/j.jnucmat.2010.03.007
Zitationen: 42
Web of Science
Zitationen: 36
Zitationen: 39
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien – Computational Materials Science (IAM-CMS)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2010
Sprache Englisch
Identifikator ISSN: 0022-3115
KITopen-ID: 1000053370
Erschienen in Journal of Nuclear Materials
Verlag Elsevier
Band 400
Heft 3
Seiten 218 - 231
Nachgewiesen in Scopus
Web of Science
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