Effect of ball-milling and graphene contents on the mechanical properties and fracture mechanisms of graphene nanosheets reinforced copper matrix composites

Yue, Hongyan; Yao, Longhui; Gao, Xin; Zhang, Shaolin; Guo, Erjun; Zhang, Hong; Lin, Xichuan; Bao, Wang

doi:10.1016/j.jallcom.2016.08.303

Cited by 256 publications

(102 citation statements)

References 34 publications

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“…On the other hand, graphene, which is a one atom-thick planar sheet of sp 2 -bonded carbon atoms, has attracted tremendous attention in recent years [18][19][20][21][22]. With respect to the carbon nanotube, which is one-dimensional reinforced graphene, it is much easier to control and disperse in the metal matrix.…”

Section: Introductionmentioning

confidence: 99%

An Overview of Key Challenges in the Fabrication of Metal Matrix Nanocomposites Reinforced by Graphene Nanoplatelets

Saboori

Moheimani

Dadkhah

et al. 2018

Metals

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This article provides an overview of research efforts with an emphasis on the fabrication of metal matrix nanocomposites (MMNCs) reinforced by graphene nanoplatelets (GNPs). Particular attention is devoted to finding the challenges in the production of MMNCs through the powder metallurgy techniques. The main technical challenges can be listed as: (I) reinforcement selection; (II) dispersion of reinforcement within the matrix; (III) reactivity between the reinforcement and matrix; (IV) interfacial bonding; (V) preferred orientation of reinforcement. It is found that some of these difficulties can be attributed to the nature of the materials involved, while the others are related to the preparation routes. It is reported that the challenges related to the process can often be addressed by changing the production process or by using post-processing techniques. More challenging issues instead are related to the composition of the matrix and reinforcement, their reactivity and the dispersion of reinforcement. These topics still bring significant challenges to the materials scientists, and it would be worth mentioning that the fabrication of MMNCs with a uniform dispersion of reinforcement, strong interfacial bonding, without detrimental reactions and improved isotropic properties is still a puzzling issue.

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Section: Introductionmentioning

confidence: 99%

An Overview of Key Challenges in the Fabrication of Metal Matrix Nanocomposites Reinforced by Graphene Nanoplatelets

Saboori

Moheimani

Dadkhah

et al. 2018

Metals

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“…Studies have shown that speed up the ball milling speed and delay the ball milling time can reduce the size of the raw materials to make the reinforcing phase more evenly distributed, and improve the combination of each component [40,41]. At the same time, the broken copper particles are cold welded during mechanical ball milling [41,42]. After the ball milling, the surface of the ZTA particles will adhere to the metal binder that promotes ZTA bond tomatrix.…”

Section: Preparation Of Cu-zta Cermetmentioning

confidence: 99%

Microstructure and mechanical properties of Cu-ZTA cermet prepared by vacuum hot pressing sintering

Sun

Jiang

Sun

et al. 2020

Mater. Res. Express

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In this paper, seven copper-zirconia toughened alumina (Cu-ZTA) cermets were prepared by vacuum hot pressing sintering (VHP). The effects of different binder content and different particle size of ZTA particles on the mechanical properties of Cu-ZTA cermets were investigated. The microstructure of the composites was studied by x-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy. The hardness of the material was measured by micro Vickers hardness tester. The results show that the solid solution strengthening occurs in the hot pressing sintering process, the formation of copper-based solid solution increases the hardness of the matrix, the highest is192.04 HV 0.1 . The ZTA particles are uniformly distributed in the matrix, and the surface of the ZTA particles is surrounded by a continuous coppermatrix and second phase. Two interfaces are formed between ZTA particles and Cu matrix. One is the ZTA/Cu interface formed by the substitution of Cu atoms for Ni atoms, it is a mechanical meshing interface which extends the service life of cermet under mechanical stress and thermal stress. The other interface is the reaction bonding interface of Cu 3 Ti 3 O and TiO x . The friction and wear test results show that the use of low-diameter ZTA particles and increasing the content of Cu binder will improve the friction and wear properties of Cu-ZTAcermet. Under the action of stress, the fracture occurs at the interface of Cu/ZTA, and the wear, fracture and extraction of ZTA ceramics cause the failure of Cu-ZTA cermet.

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“…Nevertheless, their actual applications are still very limited, far less than those of another kind of light metallic material, Al alloys, due to their relatively poor mechanical properties [5,6]. Graphene (Gr), a two-dimensional material composed of carbon atoms with sp 2 hybrid orbitals, has not only excellent electrical, thermal and optical properties, but also excellent mechanical properties, being considered as an ideal nano-sized reinforcement for metal matrix composites [7,8]. In contrast, graphene nanoplatelets (GNPs) that are composed of multi-layer Gr is more commonly used due to their more simple preparation method and resulted lower cost [8].…”

Section: Introductionmentioning

confidence: 99%

“…However, uniform dispersion of GNPs into metal matrix is more difficult than the other nanoreinforcements due to their large specific area [7,[9][10][11][12]. Similar to the other particles reinforced metal matrix composites, powder metallurgy (PM) is the most acceptable method for preparing GNPs reinforced composites [13].…”

Section: Introductionmentioning

confidence: 99%

“…Similar to the other particles reinforced metal matrix composites, powder metallurgy (PM) is the most acceptable method for preparing GNPs reinforced composites [13]. For this method, high-energy ball-milling is always conducted in order to uniformly mix GNPs with matrix alloy powders, which not only damages the structure integrity of GNPs, but also results in anisotropic mechanical properties of the achieved composites [7,[14][15][16][17][18]. To overcome these shortcomings, two categories of mixing methods have been developed.…”

Section: Introductionmentioning

confidence: 99%

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Mixing of graphene nanoplatelets with magnesium alloy powders by electrostatic adsorption

Wang

Chen

2020

Mater. Res. Express

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Mg matrix composites reinforced by graphene nanoplatelets (GNPs) offers an efficient approach for improving the mechanical properties of Mg alloys. Unfortunately, the poor uniform dispersion of GNPs into Mg matrix vastly restricts their development. In addition, surface oxidation of Mg alloy powders is always serious. To alleviate these issues, pickling and surface modification technologies of ZK61 Mg alloy powders and mixing process with GNPs have been investigated. The results show that ZK61 alloy powders with smooth surface and low degree of oxidation can be obtained after being simultaneously mechanically stirred and ultrasonically treated for 30 min in a 0.2 vol% HF ethanol solution. They were then rinsed and dried, and modified by 0.3% wt% cetyl trimethyl ammonium bromide to carry a positive charge. Subsequently, GNPs ethanol suspension was poured into the modified ZK61 alloy powders solution and mechanically stirred for 10 min, and then a powder mixture that GNPs randomly attached on the Mg powders was obtained after drying.XPS analysis reveals that GNPs were adsorbed on the surfaces of the modified Mg powders by the mechanism of electrostatic adsorption. The achieved method for preparing GNPs/ZK61 alloy mixture powders provides a new strategy for fabricating Mg matrix composites reinforced by uniformly distributed GNPs.

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Effect of ball-milling and graphene contents on the mechanical properties and fracture mechanisms of graphene nanosheets reinforced copper matrix composites

Cited by 256 publications

References 34 publications

An Overview of Key Challenges in the Fabrication of Metal Matrix Nanocomposites Reinforced by Graphene Nanoplatelets

An Overview of Key Challenges in the Fabrication of Metal Matrix Nanocomposites Reinforced by Graphene Nanoplatelets

Microstructure and mechanical properties of Cu-ZTA cermet prepared by vacuum hot pressing sintering

Mixing of graphene nanoplatelets with magnesium alloy powders by electrostatic adsorption

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