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M: Metallphysik

M 13: Mechanische Eigenschaften I

M 13.1: Vortrag

Dienstag, 9. März 2004, 10:15–10:30, H4

Development of high strength Cu-based conductor materials — •J. Freudenberger, E. Botcharova, A. Gaganov, E. Mohn, and L. Schultz — Leibniz-Institute for Solid State and Materials Research Dresden, PO Box 270016, 01171 Dresden

There is a need for high-strength and highly-conducting materials for applications such as pulsed high magnetic field coils. Different approaches were studied in order to strengthen copper-based conductor materials. On the one hand, microcomposite Cu-Nb and Cu-Ag alloys yield high strength as a consequence of their nanoscale microstructure and, on the other hand, a Cu-based macrocomposite can be strengthened by the use of a steel jacket. In all cases the increase of strength coincides with a decrease of conductivity and a reduced ductility. Thus, the ideal material balances between these competing properties. The present investigations at the IFW Dresden will be presented.