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Mechanical, tribological and electrical properties of Cu-CNT composites fabricated by flake powder metallurgy method
Cu-CNT composites were fabricated by a flake powder metallurgy method, and their microhardness, electrical conductivity, frictional and wear properties were investigated. Homogenous distribution of CNTs in fine-grained Cu matrix was obtained using this process. Microhardness increased with the addition of CNT vol% up to 8% to the Cu matrix, while the conductivity decreased to 79.2 IACS %. Results showed that CNTs play a major role in improving wear resistance by forming a CNT-rich film that acts as a solid lubricant layer. In the synthesized composites, Cu- 4 vol% CNT composite exhibited the best wear and friction properties. The dominant wear mechanisms for the Cu-CNT composites were plastic deformation, abrasion, and flake formation-spalling. Also, a newly modified correlation was proposed for the theoretical calculation of the friction coefficient of Cu-CNT composites consisting agglomerated CNTs.
Mechanical, tribological and electrical properties of Cu-CNT composites fabricated by flake powder metallurgy method
Cu-CNT composites were fabricated by a flake powder metallurgy method, and their microhardness, electrical conductivity, frictional and wear properties were investigated. Homogenous distribution of CNTs in fine-grained Cu matrix was obtained using this process. Microhardness increased with the addition of CNT vol% up to 8% to the Cu matrix, while the conductivity decreased to 79.2 IACS %. Results showed that CNTs play a major role in improving wear resistance by forming a CNT-rich film that acts as a solid lubricant layer. In the synthesized composites, Cu- 4 vol% CNT composite exhibited the best wear and friction properties. The dominant wear mechanisms for the Cu-CNT composites were plastic deformation, abrasion, and flake formation-spalling. Also, a newly modified correlation was proposed for the theoretical calculation of the friction coefficient of Cu-CNT composites consisting agglomerated CNTs.
Mechanical, tribological and electrical properties of Cu-CNT composites fabricated by flake powder metallurgy method
Archiv.Civ.Mech.Eng
Akbarpour, M. R. (Autor:in) / Alipour, S. (Autor:in) / Farvizi, M. (Autor:in) / Kim, H. S. (Autor:in)
Archives of Civil and Mechanical Engineering ; 19 ; 694-706
01.09.2019
13 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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