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Titel: Powder‐Metallurgical Fabrication and Electrical Contact Resistance Characterization of Copper–Nickel Composites Reinforced by Multiwalled Carbon Nanotubes
VerfasserIn: García, Daniel
Suárez, Sebastián
Aristizábal, Katherine
Mücklich, Frank
Sprache: Englisch
Titel: Advanced Engineering Materials
Bandnummer: 24
Heft: 2
Verlag/Plattform: Wiley
Erscheinungsjahr: 2021
Freie Schlagwörter: electrical properties
metal matrix composites
nanostructures
powder metallurgy
DDC-Sachgruppe: 500 Naturwissenschaften
Dokumenttyp: Journalartikel / Zeitschriftenartikel
Abstract: This article studies copper (Cu)-based composites alloyed with nickel (Ni) and reinforced with carbon nanotubes (CNTs) fabricated via powder metallurgy under pressureless sintering methodology and vacuum. Different compositions of matrices containing 0, 3, and 30 wt% Ni are compared after sintering at 550 and 750 °C. The formation of phases for the different compositions is analyzed by high-temperature X-ray diffraction (HT-XRD) in the solid-state range up to 800 °C, in which reduction of oxides along with the sintering can be identified. Subsequently, the matrices are reinforced with pristine multiwalled CNT (MWCNT) in contents of 0, 0.5, and 1.0 wt% prior to sintering, whose dispersion is influenced by the powder's morphology. A custom-made electrical contact resistance (ECR) setup is used to investigate the electrical behavior of the sintered samples, which, particularly, allows the identification of improvements in electrical conduction of samples containing 0.5 wt% CNT and 3 wt% Ni. A reduction in chemical incompatibilities between Cu and CNT can be attributed to the presence of Ni in solid solution.
DOI der Erstveröffentlichung: 10.1002/adem.202100755
Link zu diesem Datensatz: urn:nbn:de:bsz:291--ds-356834
hdl:20.500.11880/32541
http://dx.doi.org/10.22028/D291-35683
ISSN: 1527-2648
1438-1656
Datum des Eintrags: 7-Mär-2022
Fakultät: NT - Naturwissenschaftlich- Technische Fakultät
Fachrichtung: NT - Materialwissenschaft und Werkstofftechnik
Professur: NT - Prof. Dr. Frank Mücklich
Sammlung:SciDok - Der Wissenschaftsserver der Universität des Saarlandes



Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons Creative Commons