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M: Metallphysik

M 32: Poster TU B (Symposium Tomographic Methods in Materials Research M-32.32-55)

M 32.19: Poster

Monday, March 7, 2005, 14:30–16:30, Poster TU B

Novel conductor materials for high field pulsed magnets — •Alexander Gaganov, Jens Freudenberger, Ekaterina Botcharova, Elias Mohn, and Ludwig Schultz — Leibniz-Institute for Solid State and Materials Research Dresden, Helmholtzstr. 20, 01099 Dresden Germany

There is a need for high-strength and highly-conducting materials for applications such as pulsed high magnetic field coils. Three different approaches were studied in order to strengthen copper-based conductor materials. First, microcomposite 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. Last, but not least Cu-Nb mechanically alloyed microcomposited bear large potential to be the futures material for this type of application. In all three cases the increase of strength coincides with a decrease of conductivity. Thus, the ideal material balances between these two competing properties. The actual results will be presented.