Abstract

Copper matrix composites with functionalized carbon nanotubes (CNTs) were synthesized using powder metallurgy with hetero-aggregation mixing and spark plasma sintering. Surface modification of the CNTs was controlled using acid oxidation with different treatment times. After a moderate treatment time of 3.5 hours, the CNTs had enough charged groups to maintain a moderate structural integrity in a CNT/Cu composite material. The prepared composite exhibited a tensile strength of 457 MPa and Vickers hardness of 130 HV, which are 1.6 and 2 times higher, respectively, than those of unreinforced copper prepared by the same method. The electrical conductivity of this composite was 92 pct IACS, which is 94 pct of that of the unreinforced copper. The carbon nanotube/copper (CNT/Cu) composites exhibited a good combination of high strength and high electrical conductivity.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.