Microstructure and mechanical properties of graphene-reinforced aluminum-matrix composites

Xiao, Du; Zheng, Kai; Liu, F.

doi:10.17222/mit.2018.021

Cited by 10 publications

(4 citation statements)

References 30 publications

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“…Graphene may also be used to fill empty spaces. Therefore, a greater amount of graphene in the aluminium matrix results in a lower microhardness [1,15,16]. The fact that graphene can fix broken grain edges [1] implies it may be able to stop grains from developing altogether.…”

Section: Materials and Methodlogymentioning

confidence: 99%

The development of ultra-high aluminium graphene metal matrix composites (MMC) and improved the thermo-mechanical properties

Velliangiri¹,

Karthikeyan²,

Sureshkannan³

2023

JOR

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Powder metallurgy has made it easier to develop Ultra high Al-Gr (5 wt% Gr) composite materials for commercial solar thermal collectors. This work seeks an optimum aluminumgraphene composite with superior thermo-mechanical properties for the thermal collector. Experimentally found that an AMMC matrix with 1.0 wt% of Gr has 282 W/mK thermal conductivity, 129 percent developed than Al (123 W/mK), and also found Al+Gr has a lower thermal expansion coefficient than pure Al. Predicted different composite densities and focused to retain 96.5 percent of aluminum density after sintering. Investigated analytical techniques and included some investigation like Raman spectroscopy, X-ray diffraction, FESM, and electricity-dispersive X-ray grain size and property and also identified high-quality composites and predicted their homogeneity and invulnerability. Predicted suitable Sintering temperature was 626 degrees Celsius which increased from 300 degrees Celsius. Energy and thermal conductivity were found that increases with increasing temperature and compared to pure Al. According to this investigation, when increased the graphene weight percentage proportion from 0 to 5.0 wt%. Results show that conductivity increases from 210 to 412 W/mK and mechanical characteristics slightly drop from 16 to 19% as pH rises from 5 to 5.5. Based on this investigation Al+Gr composites may be used for solar thermal collectors and heat sinks and also appropriate ultra-high Al+5.5 wt% suitable for solar collectors.

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Section: Materials and Methodlogymentioning

confidence: 99%

The development of ultra-high aluminium graphene metal matrix composites (MMC) and improved the thermo-mechanical properties

Velliangiri¹,

Karthikeyan²,

Sureshkannan³

2023

JOR

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“…Graphene has several excellent properties such as lightweight, high fracture strength, good ductility, low coefficient of thermal expansion, etc. and all these excellent properties make graphene an ideal reinforcing material to fabricate the aluminium or its alloy matrix nanocomposites [83]. Graphene reinforced aluminium matrix nanocomposites with enhanced strength, stiffness, good ductility and wear resistance are widely studied by researchers [84][85][86][87][88][89].…”

Section: Graphene Reinforced Aluminium Matrix Nanocompositementioning

confidence: 99%

Nanocarbon reinforced aluminium matrix (NRAM) composites: Fabrication, structure and properties

Mondal

Barik

Mishra

2023

Materials Science and Technology

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Recently, there is a significant demand of lightweight materials for advanced engineering applications namely automotive, sports, aerospace, electrical applications, etc. Aluminium or its alloy-based metal matrix nano-composite materials reinforced with various carbon based nanomaterials are considered to be one of the futuristic lightweight materials. Carbon nanomaterials have a few excellent properties which make them ideal nano reinforcing materials for various matrix phases. An attempt has been made in this article to review various carbon nanomaterials reinforced aluminium or its alloy matrix-based nano-composite materials, their fabrication, properties and prospective applications in various fields. This paper has identified a few challenges of the carbon nanomaterials reinforced aluminium matrix nanocomposites which can be undertaken by researchers in future.

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“…Aluminum matrix composites (AMCs) outperform conventional aluminum alloys in terms of strength-to-weight ratio, modulus-to-weight ratio, wear resistance, thermal conductivity, and corrosion resistance, 1 so, it has been widely used in the aerospace, automotive, and military industries since. To create lightweight, high-strength metal matrix composites (MMCs), it is necessary to combine high-strength and lightweight reinforcement materials.…”

Section: Introductionmentioning

confidence: 99%

Investigation of microstructure, mechanical properties, and wear behavior of aluminum A380 nanocomposite reinforced with graphene nanosheets produced by spark plasma sintering technique

Sajjadpour

Alipour

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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The study reports the development of graphene nanosheets reinforced aluminum A380 matrix nanocomposites using powder metallurgy. Nanocomposites are fabricated by a mechanical alloying process and the bulk nanocomposites are prepared by spark plasma sintering (SPS) technique in a vacuum at 540 °C. 0.25 wt%, 0.5 wt%, 0.75 wt%, and 1 wt% of graphene nanosheets are used as a refinement for nanocomposites. Microstructural, mechanical properties, and wear behavior of the Al A380–graphene nanocomposites were investigated. Testing and analysis of fabricated composites revealed an improvement in hardness (59.96%) and wear rate (108.57%). Grain refinement action caused by graphene, high hardness, and graphene's self-lubricating nature is reasoned for these improvements. Optical microscopy and scanning electron microscopy (SEM) analysis were used to investigate microstructures of the nanoparticle distribution in the nanocomposites of the SPS samples. The wear resistance of resultant composites is reported at a higher side, decreasing friction coefficient owing to graphene's self-lubricating nature. Moreover, the incorporation of lubricant graphene nanosheets significantly reduced the wear rate and the friction coefficient in comparison with the Al A380 matrix composites. Wear morphology is characterized using SEM. In the end, the Al A380–0.5% graphene nanocomposite sample represents the greatest hardness and wear behavior, and good microstructure to compare with the other experimented samples.

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Microstructure and mechanical properties of graphene-reinforced aluminum-matrix composites

Cited by 10 publications

References 30 publications

The development of ultra-high aluminium graphene metal matrix composites (MMC) and improved the thermo-mechanical properties

The development of ultra-high aluminium graphene metal matrix composites (MMC) and improved the thermo-mechanical properties

Nanocarbon reinforced aluminium matrix (NRAM) composites: Fabrication, structure and properties

Investigation of microstructure, mechanical properties, and wear behavior of aluminum A380 nanocomposite reinforced with graphene nanosheets produced by spark plasma sintering technique

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