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High Strength-High Conductivity Silver Nanowire-Copper Composite Wires by Spark Plasma Sintering and Wire-Drawing for Non-Destructive Pulsed Fields

Tardieu, Simon and Mesguich, David and Lonjon, Antoine and Lecouturier, Florence and Ferreira, Nelson and Chevallier, Geoffroy and Proietti, Arnaud and Estournès, Claude and Laurent, Christophe High Strength-High Conductivity Silver Nanowire-Copper Composite Wires by Spark Plasma Sintering and Wire-Drawing for Non-Destructive Pulsed Fields. (2020) IEEE Transactions on Applied Superconductivity, 30 (4). 1-4. ISSN 1051-8223

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Official URL: https://doi.org/10.1109/TASC.2020.2974420

Abstract

New Ag-Cu composite wires are developed for the winding of non-destructive pulsed magnets. Silver nanowires were mixed with a micrometric copper powder. Copper and 1, 5 and 10 vol. % silver-copper cylinders were prepared by spark plasma sintering. They served as starting materials for room temperature wire-drawing, enabling the preparation of conducting wires containing copper ultrafine elongated grains and silver nanowires located at the grain boundaries. The tensile strength at 293 K and 77 K for the composite wires is more than twice those for the corresponding pure copper wires. The electrical resistivity is however increased and we show that the composites containing only 1 vol. % silver offer the best compromise

Item Type:Article
HAL Id:hal-02864517
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Université de Grenoble (FRANCE)
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Deposited On:11 Jun 2020 08:27

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