Surfactant-free electrodeposition of reduced graphene oxide/copper composite coatings with enhanced wear resistance

Mai, Y.J.; Zhou, Mingliang; Ling, Hongjie; Chen, F.X.; Lian, Weiqi; Jie, Xiaohua

doi:10.1016/j.apsusc.2017.10.014

Cited by 100 publications

(40 citation statements)

References 35 publications

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“…The electrodeposition technique is an easy, cost-effective and scalable method to fabricate Cu/graphene composite coatings [72,[112][113][114] and foils or films [19-21, 24, 31, 33, 48]. In addition, electrodeposition being a low temperature process preserves the properties of graphene during the preparation of the composites, unlike in the conventional sintering processes, which may damage graphene because they may involve temperatures higher than its decomposition temperature ([ 600°C) [31].…”

Section: Electrodepositionmentioning

confidence: 99%

“…ions, the graphene content in the Cu/graphene composites depending on the amount of dispersed graphene in the bath. To disperse graphene sheets uniformly into the electrolyte is one of the main challenges to synthesise graphene enhanced nanocomposites by electrodeposition [72]. Stirring [24,31,33,48,114] can be used to keep graphene in suspension during electrodeposition.…”

Section: Electrodepositionmentioning

confidence: 99%

“…These additions may, however, introduce heterogeneous impurities, that weaken the interfacial bonding of graphene sheets and matrix, adversely affecting the mechanical and physical properties of the composite coatings. As an alternative, Mai et al [72] proposed a surfactant-free colloidal solution comprising copper (II)-ethylene diamine tetra acetic acid ([Cu II EDTA] 2-) complexes and GO sheets to prepare Cu/RGO composites. The anionic complexes stably coexist with negatively charged GO sheets due to the electrostatic repulsion between them, facilitating the electrochemical reduction and the uniform dispersion of RGO sheets into the Cu matrix.…”

Section: Electrodepositionmentioning

confidence: 99%

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Copper/graphene composites: a review

Hidalgo-Manrique

Lei²,

Xu³

et al. 2019

J Mater Sci

260

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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: Electrodepositionmentioning

confidence: 99%

Section: Electrodepositionmentioning

confidence: 99%

Section: Electrodepositionmentioning

confidence: 99%

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Copper/graphene composites: a review

Hidalgo-Manrique

Lei²,

Xu³

et al. 2019

J Mater Sci

260

View full text Add to dashboard Cite

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“…Copper (Cu) is extensively utilized in disc brakes, contact strips, bearings and electronic packaging materials owing to its good wear resistance, high strength and excellent thermal conductivity at both room and high temperatures. [1][2][3][4][5][6][7][8][9][10] Despite the wide application of copper, there is still an increasing demand for improvement in the tribological and thermal performances of Cu in various industries. For example, high speed trains require brake pads with both excellent wear resistance and heat conduction properties in order to ensure the safe operation of the trains 11 and the integration and packaging of electronic components demand improved thermal performance to increase the energy density.…”

Section: Introductionmentioning

confidence: 99%

Graphene platelet reinforced copper composites for improved tribological and thermal properties

Chen

Huang

et al. 2019

RSC Adv.

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In this work, investigations were conducted to evaluate a type of graphene platelet-reinforced copper (GPL/Cu) composite for enhanced tribological and thermal properties. The pin-on-disc (steel) resultsshow that the wear loss and the friction coefficient of the composites decrease by nearly 80% and 70%, respectively, in comparison with those of pure Cu. Thermal conductivity of the composites initially improves substantially by approximately 30% with a slight loading of 0.25 vol% GPLs and decreases gradually with a higher content of GPLs. Microstructural analysis reveals that the enhancement in the tribological property is attributed to both the self-lubricating property of GPLs and grain refinement while the improvement in the thermal property is closely associated with the uniform dispersion of GPLs. Fig. 8 SEM images of the worn (a and d) and fractured surfaces (b and c) of GPL/Cu composites and camera images of the surface after sliding. (e) Pure Cu, (f) 0.25 vol%, (g) 0.5 vol%, (h) 1 vol%, (i) 1.5 vol%, (j) 2 vol%.39890 | RSC Adv., 2019,9,[39883][39884][39885][39886][39887][39888][39889][39890][39891][39892] This journal is

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“…Ni based metallic coatings, however, possess a range of high friction coefficients (in the range of 0.4 to 0.7) against steel under dry friction conditions, which cannot fulfil economic expectations and meet the rising demands for environmental protection. Composite coatings 2 of 12 of solid lubricants in a metallic matrix, for example, CNTs [9,10], graphite [11,12], MoS 2 [13], WS 2 [14] and reduced graphene oxide [15], have been widely developed to provide enhanced tribological properties (i.e., low friction, chemical inertness, good wear and corrosion resistance).…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Properties of Electrodeposited Ni–Co/WS2 Nanocomposite Coatings

Wang

Sun

et al. 2019

Coatings

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Ni–Co coatings have gained widespread attention due to their potential in replacing hard chromium deposits (which have traditionally utilized toxic and corrosive chromic acid baths). A major challenge is to lower the high coefficient of friction of coated surfaces against steel, under dry sliding conditions. In this research, low friction Ni–Co/WS2 nanocomposite coatings have been prepared by a convenient, one-pot electrodeposition from aqueous Ni–Co plating baths containing WS2 particles. The embedment of the WS2 lubricants is found to reduce the friction coefficient of coating significantly, and an ultra-low friction coefficient of 0.16 is obtained for the coating having a WS2 content of 7.1 wt.%. Morphology and composition characterization of wear tracks reveal that the formation of a WS2-rich lubricating tribofilm on the contact surfaces is beneficial to a low friction coefficient and good oxidation resistance. The wettability of electrodeposited coatings was also investigated. Compared to pure Ni-Co coating, the Ni–Co/7.1 wt.% WS2 coating has an excellent hydrophobicity with a high water contact angle (WCA) of 157°, due to a rough surface with dual scale protrusions and the low surface energy of WS2.

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Surfactant-free electrodeposition of reduced graphene oxide/copper composite coatings with enhanced wear resistance

Cited by 100 publications

References 35 publications

Copper/graphene composites: a review

Copper/graphene composites: a review

Graphene platelet reinforced copper composites for improved tribological and thermal properties

Synthesis and Properties of Electrodeposited Ni–Co/WS2 Nanocomposite Coatings

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