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Influence of alloying on the tensile strength and electrical resistivity of silver nanowire: copper composites macroscopic wires

Tardieu, Simon and Mesguich, David and Lonjon, Antoine and Lecouturier-Dupouy, Florence and Ferreira, Nelson and Chevallier, Geoffroy and Proietti, Arnaud and Estournès, Claude and Laurent, Christophe Influence of alloying on the tensile strength and electrical resistivity of silver nanowire: copper composites macroscopic wires. (2021) Journal of Materials Science, 56 (7). 4884-4895. ISSN 0022-2461

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Official URL: https://doi.org/10.1007/s10853-020-05556-9

Abstract

Composite powders made up of 1 vol. %Ag nanowires (NW) dispersed in Cu were prepared and consolidated into cylinders by spark plasma sintering. One cylinder was sintered at only 400 °C resulting in a nanocomposite sample with no dissolution of the Ag NW into the Cu matrix. The second cylinder was sintered at 600 °C and the Ag NW are dissolved forming Ag/Cu alloy NW. The cylinders served as starting materials for room temperature wire-drawing, enabling the preparation of wires of decreasing diameters. The microstructure of the cylinders and the wires was investigated by electron microscopy and associated techniques. The tensile strength and electrical resistivity were measured at 293 K and 77 K. The nanocomposite and alloy wires show similar UTS values (1100 MPa at 77 K), but alloying, although spatially limited, provoked a significant increase in electrical resistivity (0.56 µΩ cm at 77 K) compared to the nanocomposite wires (0.49 µΩ cm at 77 K).

Item Type:Article
HAL Id:hal-03108715
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)
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Deposited On:13 Jan 2021 11:46

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