Graphene-reinforced metal matrix nanocomposites – a review

Hu, Zengrong; Guo-quan, Tong; Lin, Dong; Chen, C.; Guo, Huan; Xu, Jiale; Zhou, Li

doi:10.1080/02670836.2015.1104018

Cited by 252 publications

(84 citation statements)

References 80 publications

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“…Graphene, a two-dimensional material consisting six rings of sp 2 -hybridized carbon atoms, has been used as an important new nanosize reinforcement in the field of structural and functional composites since it was successfully separated in 2004 [1][2][3][4] . It has attracted much attention due to the extremely high mechanical strength and excellent thermal and electrical properties.…”

Section: Introductionmentioning

confidence: 99%

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Titanium Dioxide Coated Graphene Nanosheets as a Reinforcement in Aluminum Matrix Composites Based on Pressure Sintering Process

Guo¹,

Wu²,

Li³

et al. 2020

Preprint

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Graphene nanoplatelets (GNPs) reinforced 7075 aluminum (Al) nanocomposites were successfully synthesized using the powder metallurgy method. A novel method for optimizing interfacial bonding by coating titanium dioxide (TiO 2 ) on the surface of GNPs was proposed in this manuscript. The effects of GNPs on mechanical properties and microstructure of the aluminum matrix nanocomposites, both with and without TiO 2 coating layers, have been investigated. Experimental results showed that the corresponding mechanical properties of the nanocomposites were further improved when the GNPs have TiO 2 coating layers, compared with the addition of pure GNPs. The yield strength, ultimate tensile strength, and microhardness of the nanocomposites reinforced with TiO 2 -coated GNPs increased by 22.9%, 25.9%, and 20.1%, respectively, in comparison to those of the matrix. The further improvement of the mechanical properties could be attributed to the existence of the coating layer, which optimizes the interface bonding between the reinforcement and the matrix, thereby improving the effectiveness of load transfer.

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Section: Introductionmentioning

confidence: 99%

“…and(4), and are 55MPa and 84MPa, respectively. The theoretical predictions are much larger than the experimental data of YS.…”

mentioning

confidence: 99%

Titanium Dioxide Coated Graphene Nanosheets as a Reinforcement in Aluminum Matrix Composites Based on Pressure Sintering Process

Guo¹,

Wu²,

Li³

et al. 2020

Preprint

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show abstract

“…This is an effective method to promote the development of structural materials. Metal matrix composites (MMCs) reinforced by graphene and its derivatives with laminated microstructure have attracted much attention due to their excellent properties such as high strength, Young's modules and good ductility [1,2]. As a single-atomic-layer material, graphene may form strong interface bonding with metal and enhance the properties of the composite due to the large surface area and extraordinary mechanical properties [3].…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Tensile Behavior of Graphene-Aluminum Nano-Laminated Composites by Molecular Dynamics Simulation

Zhu

Qing

Liu

2019

KEM

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Graphene-aluminum (Gr/Al) composite laminated by aluminum (Al) and graphene sheets alternately has excellent mechanical properties thanks to the high strength, high Young’s modulus and the two-dimensional atomic structure of graphene. In this study, the uniaxial tensile properties of Gr/Al nano-laminated composite are studied by molecular dynamics (MD) method. It is found that the thickness of Al layer has a significant effect on the tensile strength and Yang’s modulus of the Gr/Al composite. Composite with a smaller thickness of Al layer shows better properties. Graphene not only block propagation of dislocations, but bear most of the loads, resulting in higher Young's modulus, tensile strength and failure strain of the composites than those of pure Al. The simulation of temperature-effect shows that the Gr/Al composite is difficult to arise plastic deformation at low temperature, which lead to a higher strength and modulus of the composite. In addition, the effect of graphene stacking on the properties of composites is investigated. Through tensile tests at the vertical and parallel interfaces, it is found that graphene stacking may lead to a reduced performance of the composite.

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“…Mixing the composite constituents through PM approach can involve different techniques such as mechanical stirring (like ball milling), physical dispersing (like sonication), or a polymer assisted dispersion [18][19][20][21][22][23]. Occasionally a solution treatment such as functionalization is used to increase the surface properties of the carbon nanoparticles and improve the dispersion [3,6].…”

Section: Introductionmentioning

confidence: 99%

Effect of Reinforcement Type and Dispersion on the Hardening of Sintered Pure Aluminium

Emadinia

Vieira

2018

Metals

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The homogeneity of dispersion and reinforcing of pure aluminium by multi-walled carbon nanotubes (MWCNT) through the application of a high speed sonication (340 Hz) assisted by ultrasonication (35 kHz) was evaluated, this method was termed “assisted sonication”. Other reinforcements (graphene, nanoalumina, and ultrafine tungsten carbide) were used for comparison with the MWCNT. The hardness measurement enabled us to evaluate the strengthening effect of the reinforcements. Raman analysis was the technique selected to evaluate the integrity of MWCNTs during dispersion. The scanning and transmission electron microscopies revealed the dispersion and microstructure of the nanoreinforcements and nanocomposites. After applying the assisted sonication, the MWCNTs were detangled without exfoliation. The integrity of MWCNTs was strongly influenced by the presence of the aluminum powder during dispersion. The application of the assisted sonication method reduced the size of the aggregates in the matrix, in comparison with the sonication technique. Ultrafine tungsten carbide, with a 1 vol. %, was the reinforcement that more effectively hardened aluminum due to a good dispersion of the reinforcement, grain refinement and the formation of Al12W phase.

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Graphene-reinforced metal matrix nanocomposites – a review

Cited by 252 publications

References 80 publications

Titanium Dioxide Coated Graphene Nanosheets as a Reinforcement in Aluminum Matrix Composites Based on Pressure Sintering Process

Titanium Dioxide Coated Graphene Nanosheets as a Reinforcement in Aluminum Matrix Composites Based on Pressure Sintering Process

Investigation on the Tensile Behavior of Graphene-Aluminum Nano-Laminated Composites by Molecular Dynamics Simulation

Effect of Reinforcement Type and Dispersion on the Hardening of Sintered Pure Aluminium

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