A powder-metallurgy-based strategy toward three-dimensional graphene-like network for reinforcing copper matrix composites

Xiang Zhang, Yixin Xu, Miaocao Wang, Enzuo Liu, Naiqin Zhao, Chunsheng Shi, Dong Lin, Fulong Zhu () and Chunnian He ()
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Xiang Zhang: School of Materials Science and Engineering and Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University
Yixin Xu: School of Mechanical Science and Engineering, Huazhong University of Science and Technology
Miaocao Wang: School of Mechanical Science and Engineering, Huazhong University of Science and Technology
Enzuo Liu: School of Materials Science and Engineering and Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University
Naiqin Zhao: School of Materials Science and Engineering and Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University
Chunsheng Shi: School of Materials Science and Engineering and Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University
Dong Lin: Department of Industrial and Manufacturing Systems Engineering, Kansas State University
Fulong Zhu: School of Mechanical Science and Engineering, Huazhong University of Science and Technology
Chunnian He: School of Materials Science and Engineering and Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University

Nature Communications, 2020, vol. 11, issue 1, 1-13

Abstract: Abstract Three-dimensional graphene network is a promising structure for improving both the mechanical properties and functional capabilities of reinforced polymer and ceramic matrix composites. However, direct application in a metal matrix remains difficult due to the reason that wetting is usually unfavorable in the carbon/metal system. Here we report a powder-metallurgy based strategy to construct a three-dimensional continuous graphene network architecture in a copper matrix through thermal-stress-induced welding between graphene-like nanosheets grown on the surface of copper powders. The interpenetrating structural feature of the as-obtained composites not only promotes the interfacial shear stress to a high level and thus results in significantly enhanced load transfer strengthening and crack-bridging toughening simultaneously, but also constructs additional three-dimensional hyperchannels for electrical and thermal conductivity. Our approach offers a general way for manufacturing metal matrix composites with high overall performance.

Date: 2020
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DOI: 10.1038/s41467-020-16490-4

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