Inhomogeneous copper matrix composites reinforced by RGO/Cu composite foams with high electrical conductivity, tensile strength and fracture elongation

A three-dimensional (3-D) skeleton-reinforced copper composite was designed to overcome the paradox between strength and ductility or conductivity. Open cell copper matrix foams with uniformly embedded reduced graphene oxide (RGO) were prepared via electrodeposition. The foam pores were filled with...

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Published in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2023-03, Vol.867, p.144500, Article 144500
Main Authors: Yan, An, Jiang, Hongqu, Yu, Jie, Zhao, Qi, Wu, Zhong, Tao, Jingmei, Li, Caiju, Yi, Jianhong, Liu, Yichun
Format: Article
Language:English
Subjects:
3-D skeleton reinforcement
Copper matrix composites
Electrical conductivity
Reduced graphene oxide
Tensile properties
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cited_by cdi_FETCH-LOGICAL-c300t-66da514b6a724629cf6552301b4f369e0a2944f5c4282229d4b542a9bb43cb973
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container_start_page 144500
container_title Materials science & engineering. A, Structural materials : properties, microstructure and processing
container_volume 867
creator Yan, An
Jiang, Hongqu
Yu, Jie
Zhao, Qi
Wu, Zhong
Tao, Jingmei
Li, Caiju
Yi, Jianhong
Liu, Yichun
description A three-dimensional (3-D) skeleton-reinforced copper composite was designed to overcome the paradox between strength and ductility or conductivity. Open cell copper matrix foams with uniformly embedded reduced graphene oxide (RGO) were prepared via electrodeposition. The foam pores were filled with pure copper phase via spark plasma sintering (SPS). Cu2O nanoparticles were formed at the RGO-Cu interface, resulting in improved interfacial bonding. Three-dimensional skeleton-reinforced composites showing a combination of high electrical conductivity (93.24% IACS), tensile strength (343 MPa), and fracture elongation (39.4%) were fabricated with low levels of RGO (0.024 wt%). The possible strengthening mechanism of the skeleton-reinforced composites is discussed basing on the test results.
doi_str_mv 10.1016/j.msea.2022.144500
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subjects 3-D skeleton reinforcement
Copper matrix composites
Electrical conductivity
Reduced graphene oxide
Tensile properties
title Inhomogeneous copper matrix composites reinforced by RGO/Cu composite foams with high electrical conductivity, tensile strength and fracture elongation
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