Bident, A.; Delange, F.; Labrugere, C.; Debiemme-Chouvy, C.; Lu, Y.; Silvain, J.-F. Fabrication and Characterization of Copper and Copper Alloys Reinforced with Graphene. Journal of Composite Materials 2023, doi:10.1177/00219983231215210.
Bident, A.; Delange, F.; Labrugere, C.; Debiemme-Chouvy, C.; Lu, Y.; Silvain, J.-F. Fabrication and Characterization of Copper and Copper Alloys Reinforced with Graphene. Journal of Composite Materials 2023, doi:10.1177/00219983231215210.
Bident, A.; Delange, F.; Labrugere, C.; Debiemme-Chouvy, C.; Lu, Y.; Silvain, J.-F. Fabrication and Characterization of Copper and Copper Alloys Reinforced with Graphene. Journal of Composite Materials 2023, doi:10.1177/00219983231215210.
Bident, A.; Delange, F.; Labrugere, C.; Debiemme-Chouvy, C.; Lu, Y.; Silvain, J.-F. Fabrication and Characterization of Copper and Copper Alloys Reinforced with Graphene. Journal of Composite Materials 2023, doi:10.1177/00219983231215210.
Abstract
The constant increase in current density in electrical wires leads to increasingly significant heat losses due to Joule effect. Therefore, reducing the electrical resistivity of copper wires becomes necessary. To achieve this goal, the development of a composite material incorporating a more conductive reinforcement, the graphene, is a promising way. The design of a copper/graphene composite using a powder metallurgy-based method is presented. This synthesis method allows for interface control through the growth of CuO(Cu) nanoparticles tightly bonded to the reinforcement. It also involves the dispersion of graphene through ultrasonic treatment and its alignment within the matrix using a uniaxial pressing densification method. The increase in the hardness (+12 HV) demonstrates the effective dispersion and separation of graphene layers. The impact on the electrical properties of dendritic copper (ρe = 2.30 µΩ.cm) remains limited, with a decrease in electrical resistance of approximately 1.4%. However, for copper with higher electrical resistivity, flake copper (at 2.71 µΩ.cm) and brass at (7.66 µΩ.cm), reductions of 2.7% and 10% have been achieved, respectively. With the improvement of graphene quality, there is more room to improve the electrical properties. This work paves the way for the development of composites with improved electrical resistivity.
Chemistry and Materials Science, Ceramics and Composites
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