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Electrical Performance of Copper-Graphene Nano-Alloys

Smith, Jacob A.
http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1550675878730599

Abstract Details

2019, Master of Science (MS), Ohio University, Mechanical Engineering (Engineering and Technology).
In this work, copper-graphene alloys were synthesized through a novel hot extrusion alloying process utilizing low-defect density and high-defect density graphene additives. The room temperature electrical resistivity, temperature coefficient of resistance, and current density of the copper-graphene samples were all experimentally measured. Experimental results demonstrated that the introduction of 0.0017 wt.% low-defect density graphene into a copper matrix resulted in a 1.8% decrease in electrical resistivity, a 16.8% decrease in temperature coefficient of resistance, and a 10.1% increase in current density over a copper-only control sample processed and synthesized under the same conditions. The introduction of 0.01 wt.% high-defect density graphene into a copper matrix resulted in a 1.6% decrease in electrical resistivity, a 9.5% decrease in temperature coefficient of resistance, and a 12.6% increase in current density over a control sample processed and synthesized under the same conditions. This is the first time that the introduction of graphene into a copper matrix has resulted in improved electrical properties over the material limitations of copper in bulk-scale forms with reduced porosity and a consolidated microstructure. These new copper-graphene alloys may be incorporated into applications such as nano-electronics or motor coil windings so as to minimize electrical losses and decrease thermal energy generation.
Keerti Kappagantula (Committee Chair)
Frank Kraft (Committee Member)
Jay Wilhelm (Committee Member)
Eric Stinaff (Committee Member)
80 p.
Materials Science; Mechanical Engineering
Copper; Graphene; Electrical Resistivity; Electrical Properties; Current Density; Temperature Coefficient of Resistance

Recommended Citations

Citations

  • Smith, J. A. (2019). Electrical Performance of Copper-Graphene Nano-Alloys [Master's thesis, Ohio University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1550675878730599

    APA Style (7th edition)

  • Smith, Jacob. Electrical Performance of Copper-Graphene Nano-Alloys. 2019. Ohio University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1550675878730599.

    MLA Style (8th edition)

  • Smith, Jacob. "Electrical Performance of Copper-Graphene Nano-Alloys." Master's thesis, Ohio University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1550675878730599

    Chicago Manual of Style (17th edition)

ohiou1550675878730599
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© 2019, all rights reserved.
This open access ETD is published by Ohio University and OhioLINK.