Microstructural characterization of high strength and high conductivity nanocomposite wires
- Service National des Champs Magnetiques Pulses, Toulouse (France)
- Centre d`Elaboration de Materiaux et d`Etudes Structurales, Toulouse (France)
The generation of high pulsed magnetic fields by non-destructive magnets is a subject of research in several laboratories in the world. Combining copper and niobium seems to be a promising way to develop composites for such application. CuNb nanofilamentary wires with interesting mechanical properties for non-destructive magnets were obtained. For heavily deformed nanofilamentary wires, the fiber size decreases and the TEM studies reveal a strong fiber-matrix orientation relationship. The Cu/Nb interfaces become semi-coherent and almost completely relaxed, with a distance between misfit dislocations in good agreement with the theoretical predictions. As lowering the filament section improves the mechanical properties, one may expect to elaborate wires with larger numbers of dilaments exhibiting enhanced mechanical properties. The subsequent reduction of the filament section may lead to the formation of mono-crystalline Nb fibers and to perfect coherency of the Cu/Nb interfaces over larger distances.
- OSTI ID:
- 205228
- Journal Information:
- Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: 7 Vol. 34; ISSN 1359-6462; ISSN XZ503X
- Country of Publication:
- United States
- Language:
- English
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