Materials Reports  2020, Vol. 34 Issue (Z2): 390-394 |
| METALS AND METAL MATRIX COMPOSITES |
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| Effect of Cold Rolling on Properties of In-situ Growing Three-dimensional Graphene/Copper Matrix Composites |
| YU Zhenyang, LYU Benyuan, HE Wei
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| School of Mechanical Engineering, Tianjin Polytechnic University, Tianjin 300387, China |
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Abstract Graphene reinforced copper matrix composites have the advantages of high strength and high conductivity, which has attracted much attention in high conductivity copper matrix composites. In order to further solve the problem of agglomeration of additional graphene and further improve the bonding between graphene and matrix, in this paper, a large area of three-dimensional continuous thin-layer graphene was in-situ grown on porous copper matrix which use acetylene as carbon source, and the bulk graphene/copper matrix composite with excellent comprehensive properties was prepared after secondary cold rolling and annealing heat treatment. The results show that with the increase of rolling times, the compactness of composites is improved, so the conductivity can be close to the pure copper, and the tensile strength can be increased by 49.5%. The graphene prepared by this method has high quality and good bonding with the matrix after rolling. The conductivity and mechanical properties of the composites with high density can also be controlled according to the process parameters, which provides a new processing idea for the preparation of graphene/copper matrix composites.
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Published: 08 January 2021
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| Fund:This work was financially supported by the National Natural Science Foundation of China (51701142). |
| About author:: Zhenyang Yu, received the Ph.D degree in materials science and engineering from Tianjin University in 2011, once worked in the Technology Center of Tianjin Iron and Steel Group Co., Ltd., engaged in R & D work as a senior engineer, and then entered Tiangong University in 2015. Main works are the research on the design and performance of new metal matrix composites, and research on the micro analysis and failure of steel materials. At present, the projects under study include the Youth Program of National Natural Science Foundation of China, and have participated in a number of NSFC projects and Key R & D Projects in Tianjin. Benyuan Lyu graduated from Tianjin Polytechnic University with a bachelor's degree in engineering in June 2018. Now he is a postgraduate of the School of Mechanical Engineering of Tianjin Polytechnic University, conducting research under the guidance of Professor Yu Zhenyang. The main research direction is the preparation and performance of copper-based composite materials. |
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