Fabrication and Properties of Copper–Graphene Composites

Конаков, В. Г.; Archakov, I. Yu.; Kurapova, Olga Yu.

doi:10.1002/9781119468455.ch62

Cited by 5 publications

(2 citation statements)

References 60 publications

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“…Several studies have attempted to improve the mechanical, thermal, and electrical properties of metal matrices by introducing graphene as a nanofiller [9][10][11][12][13][14][15]. Wang et al [16] prepared graphene-reinforced copper matrix composites using high-pressure sintering and showed that the optimum product could be obtained using 0.5 wt% graphene, resulting high in yield stress, thermal and electrical conductivities, and corrosion resistance.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Corrosion Resistance and Electrical Conductivity of Three-Dimensionally Interconnected Graphene-Reinforced Cu Composites

Li¹,

Choi²

2021

Korean J. Met. Mater.

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A three-dimensionally interconnected graphene-reinforced Cu (3Di Gr-Cu) composite was synthesized using a simple two-step process technique which involves the mechanical compaction of micronsized Cu particles followed by chemical vapor deposition (CVD) at 995 ℃. The microstructural properties of pure Cu and the 3Di Gr-Cu composite were investigated by optical microscope, scanning electron microscope, and X-ray diffractometer. The electrical and corrosion behaviors of the 3Di Gr-Cu composite and Cu only, prepared by powder metallurgy (PM Cu), were studied and compared. The electrical conductivity (EC) of the 3Di Gr-Cu composites was found to be 38.8 MSm<sup>−1</sup> at a carbon content of 73 ppm, and exhibited a 12% higher EC than the PM Cu. Due to the interconnected graphene around the Cu grains, the corrosion current density and corrosion rate of the 3Di Gr-Cu composite decreased by 29% and 40%, respectively, compared to the PM Cu. The EC of the 3Di Gr-Cu composite depended on the carbon content. The improvement in the EC of the 3Di Gr-Cu composite is attributed to the electron-carrying ability of the three-dimensionally interconnected graphene network (3DIGN) formed at the grain boundaries in the composite. The enhancement in corrosion resistance is due to the impermeability of graphene to various chemical species.

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Section: Introductionmentioning

confidence: 99%

Electrochemical Corrosion Resistance and Electrical Conductivity of Three-Dimensionally Interconnected Graphene-Reinforced Cu Composites

Li¹,

Choi²

2021

Korean J. Met. Mater.

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“…Na2O⋅8.1Al2O3~Na2O⋅9.5Al2O3, ideally Na2O⋅11Al2O3) have high Na-ion conductivity [1,2], and they have mainly been studied as ion conductors mainly in sodium ion batteries [3][4][5][6]. They are also studied for conducting films [7], gas sensors [8,9], high-k gate layer for transparent electronics [10,11] and thermoelectric conversion material [12,13]. The space groups of β"and β-alumina are 3 � (166) and P63/mmc (194), respectively [14][15][16], and thus, they idiomorphically grow into hexagonally-shaped plate-like grains [17,18].…”

Section: Introductionmentioning

confidence: 99%

Reactive sintering and particle morphology control of β″-alumina-based water purification filters

Fukui

Suzuki

2017

J Mater Sci

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This paper reports on the preparation of porous membranes consisting of plate-like β"-alumina grains and the evaluation for microfiltration properties. Porous β"-alumina-based ceramics were prepared by the solid-state reactive sintering of Na2CO3 and α-Al2O3 at 1100-1300 °C. To study the effect of impurities in the starting powder mixtures, LiF-doped membranes were also prepared. As for the water filtration test, the turbidity before and after the vacuum filtration was measured using sintered porous membranes. To simulate bacteria-contaminated water, a suspension of a commercial boehmite powder (D50 = 0.7 µm) in distilled water was used. The non-doped samples sintered at 1200 °C was composed of β"-alumina (84 wt.%) and β-alumina (16 wt.%) grains, and showed a good microfiltration performance; the turbidities before and after filtration were 894.4 NTU and 1.46 NTU, respectively.

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Improvement of Copper–Graphene Composites Properties due to the Lubricating Effect of Graphene in the Powder Metallurgy Fabrication Process

2019

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Fabrication and Properties of Copper–Graphene Composites

Cited by 5 publications

References 60 publications

Electrochemical Corrosion Resistance and Electrical Conductivity of Three-Dimensionally Interconnected Graphene-Reinforced Cu Composites

Electrochemical Corrosion Resistance and Electrical Conductivity of Three-Dimensionally Interconnected Graphene-Reinforced Cu Composites

Reactive sintering and particle morphology control of β″-alumina-based water purification filters

Improvement of Copper–Graphene Composites Properties due to the Lubricating Effect of Graphene in the Powder Metallurgy Fabrication Process

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