Graphene-copper composite with micro-layered grains and ultrahigh strength

Wang, Lidong; Yang, Zhiyuan; Cui, Yan; Wei, Bing; Xu, Shuping; Sheng, Jie; Wang, Miao; Zhu, Yunpeng; Fei, Weidong

doi:10.1038/srep41896

Cited by 104 publications

(39 citation statements)

References 49 publications

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“…Another simple, but usually multi-step electroless plating technique, molecular level mixing (MLM), has been used to fabricate Cu/graphene composite powders which are subsequently consolidated by SPS [23,34,39,43,50,54,67,74,109]. A schematic diagram of a fabrication process of Cu/RGO nanocomposites by MLM is given in Fig.…”

Section: Electroless Depositionmentioning

confidence: 99%

“…The nanofibers are uniformly dispersed on GO sheets with diameters of a few tens of nanometres. Most importantly, the edges of GO sheets can be easily observed and are distributed almost parallel to each other, which can be considered the ideal framework of micro-layered composites with nacre-inspired architecture [74]. Nacre is a natural inorganic/organic composite material that gains its toughness from a microstructure that consists of sheets of calcium carbonate separated by layers of elastic biopolymers.…”

Section: Electroless Depositionmentioning

confidence: 99%

“…The most common microstructures are particulate, where graphene particles are embedded in a Cu matrix and layered composites, where the Cu and graphene are arranged in alternating layers. However, more sophisticated configurations such as the bio-inspired, nacre-mimicking composites have also been reported [41,44,45,47,58,74].…”

Section: Introductionmentioning

confidence: 99%

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Copper/graphene composites: a review

Hidalgo-Manrique

Lei²,

Xu³

et al. 2019

J Mater Sci

258

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Recent research upon the incorporation of graphene into copper matrix composites is reviewed in detail. An extensive account is given of the large number of processing methods that can be employed to prepare copper/graphene composites along with a description of the microstructures that may be produced. Processing routes that have been employed are described including powder methods, electrochemical processing, chemical vapour deposition, layer-by-layer processing, liquid metal infiltration among a number of others. The mechanical properties of the composites are described in detail along with an account of the structural factors that control mechanical behaviour. The mechanics and mechanisms of deformation are discussed, and the effect of factors such as the graphene content and the type of graphene used, along with processing conditions for the fabrication of the composites, is described. The functional properties of copper/graphene composites are also reviewed including their electrical and thermal properties, and tribological and corrosion behaviour. In each case, the effect of the graphene type and content, and processing conditions are also described. Finally, possible future applications of copper/graphene composites are discussed.

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Section: Electroless Depositionmentioning

confidence: 99%

Section: Electroless Depositionmentioning

confidence: 99%

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Copper/graphene composites: a review

Hidalgo-Manrique

Lei²,

Xu³

et al. 2019

J Mater Sci

258

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“…Such these significant structural changes were made from pristine graphite to graphite oxide (GO), and to the reduced graphite oxide (rGO), which took place during the SPS process. Previous studies of rGO phases formed in the Cu matrix have focused on discussing mechanical properties dominated by the interface strength between Cu and graphene and the graphene dispersion in the composite [28][29][30]. It is worth noting that the copper-graphite interface with a well-defined thickness of the graphite oxide layers ranging from 8 to 10 nm were formed as obviously shown in Figure 2.…”

Section: Resultsmentioning

confidence: 95%

Characterization of Copper–Graphite Composites Fabricated via Electrochemical Deposition and Spark Plasma Sintering

Byun

Kim²,

Sung³

et al. 2019

Applied Sciences

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In the present study, we have demonstrated a facile and robust way for the fabrication of Cu-graphite composites (CGCs) with spatially-aligned graphite layers. The graphite layers bonded to the copper matrix and the resulting composite structure were entirely characterized. The preferential orientation and angular displacement of the nano-sized graphite fiber reinforcements in the copper matrix were clarified by polarized Raman scattering. Close investigation on the change of the Raman G-peak frequency with the laser excitation power provided us with a manifestation of the structural and electronic properties of the Cu-graphite composites (CGCs) with spatially-distributed graphite phases. High resolution transmission electron microscopy (TEM) observation and Raman analysis revealed that reduced graphite oxide (rGO) phase existed at the CGC interface. This work is highly expected to provide a fundamental way of understanding how a rGO phase can be formed at the Cu-graphite interface, thus finally envisioning usefulness of the CGCs for thermal management materials in electronic applications.

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“…No pore or crack in the interface between Cu matrix and graphene sheet indicates well interfacial bonding. As a result, the excellent hardness is obtained in the RGO-Cu composites [35,36]. Fig.…”

Section: Preparation Of Cu/gns Compositementioning

confidence: 99%

Effect of milling on dispersion of graphene nanosheet reinforcement in different morphology copper powder matrix

Ponraj

Vettivel

Azhagurajan³

et al. 2017

Surfaces and Interfaces

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The effective dispersion of Graphene Nanosheet (GNS) as reinforcement was studied with various morphology of Copper (Cu) powder as matrix. High energy milling was used for modifying the morphology of the Cu powders. The Cu powder with Spherical and dentric shape was used in this study. Using high energy milling both the powders were milled for 8 h and 16 h respectively. The morphology of Cu powders was altered as flake shape upon milling. GNS (2 wt. %) was added as reinforcement uniformly with various morphology Cu powder used as matrix. The effect of size and shape of Cu as matrix on Cu/GNS composite properties was comprehensively studied. The Cu/GNS composite was prepared using powder metallurgy technique. Using the different shape and size of the Cu as matrix the interface of GNS has been studied. The hardness properties of Cu/GNS composite are evaluated. The effect of GNS interface in Cu particles has a significant influence on mechanical properties of composites. The hardness of Cu matrix composite has improved up to 20% compared to that of pure Cu. Thus morphology of Cu has the ability to improve the mechanical properties with GNS reinforcement.

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Graphene-copper composite with micro-layered grains and ultrahigh strength

Cited by 104 publications

References 49 publications

Copper/graphene composites: a review

Copper/graphene composites: a review

Characterization of Copper–Graphite Composites Fabricated via Electrochemical Deposition and Spark Plasma Sintering

Effect of milling on dispersion of graphene nanosheet reinforcement in different morphology copper powder matrix

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