Investigating the internal structure and mechanical properties of graphene nanoflakes enhanced aluminum foam

An, Yukun; Yang, Sen; Wu, Hongyan; Zhao, Ertuan; Wang, Zongshen

doi:10.1016/j.matdes.2017.08.031

Cited by 30 publications

(12 citation statements)

References 48 publications

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“…Similar kinds of observation were depicted in Al-SiC graphene composite made through ultrasonic stirring [63]. It was also reported that the presence of graphene nanoflakes in Al-foam reduced the pore size, improved pore distribution and refined pore morphology, which, in turn, enhanced the properties [49]. The strain rate strengthening phenomena was clearly discernible in the current experimentation.…”

Section: Discussionsupporting

confidence: 88%

“…Graphene nanosheets were deployed with the SiC particulates to enhance material strength as a consequence of a much stronger bond developed at the interface of Al-SiC and graphene [59]. It was reported [49] that the inclusion of 0.3% of nano-sheets of graphene in Al-alloy improved the tensile strength by 62% compared to the non-reinforced alloy. The present results were well validated through the predicted results obtained by ANOVA analysis.…”

Section: Discussionmentioning

confidence: 99%

“…However, in order to produce MMCs with reinforcement of graphene nano-platelets in the mass quantities, it is tremendously difficult to efficiently integrate and distribute graphene nanoplatelets uniformly into the molten metal. Graphene dispersed Al composite foam describing compressive deformation under static loading [49], which reported~28% improvement in specific energy absorption with the addition of 0.1 wt.% graphene nanoflakes. Al-foam manufactured by CYMAT (Canada and Fraunhofer IFAM processes) showed a significant rate of sensitive behavior, which was observed due to the microinertia effect [27].…”

Section: Introductionmentioning

confidence: 99%

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Energy Absorption Behavior of Al-SiC-Graphene Composite Foam under a High Strain Rate

et al. 2020

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The present work was addressed to the closed-cell aluminum (Al)-silicon carbide (SiC) particles (15 wt.%) with graphene (0.5 wt.%) reinforced hybrid composite foam, which was produced through the melt route process. Under the strain rates ranging from 500 s −1 to 2760 s −1 , the compression deformation behavior of hybrid composite foam was executed. The compression results disclosed that plateau stress along with energy absorption of produced hybrid composite foam are heightened with strain rates and is also discovered to be responsive to the relative density under the confront domain of experiments. Analysis of Variance was deployed for optimizing parameters such as strain rates, mass, density, relative density, and pore size. Furthermore, the contribution of each optimized parameters on plateau stress and energy absorption were observed.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Energy Absorption Behavior of Al-SiC-Graphene Composite Foam under a High Strain Rate

et al. 2020

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“…These investigations reported improvements in the mechanical properties of the cell walls; however, the poor bonding between the matrix and the ceramic reinforcements [21] and separation between CNTs on the surface of Al powder [19] are resulted in increasing the brittleness of the composite foam and reduced its energy absorption capacity. Yukun An et al [23] studied the mechanical properties of a graphene Nanoflakes reinforced aluminum foam (GNF-AF) under quasi-static compressive loading condition. According to the experimental tests, the existence of GNFs can reduce the pore diameter, refine the pore morphology and improve the pore distribution.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties and energy absorbing capabilities of Z-pinned aluminum foam sandwich

Raeisi

Kadkhodapour

Tovar

2019

Composite Structures

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“…Based on the connectivity of cells, cellular metals can be categorized as either closed-or open-celled. Cellular metals are also dominantly used for construction, auto parts, electronic equipment, aerospace, and other broad variety of fields [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Effects of CeO2 on the microstructure and properties of 2A12 porous aluminum

Liu

et al. 2018

SN Appl. Sci.

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The micron porous aluminum has received considerable attention in various domains, and the research of rare earths for the synthesis of materials with improved mechanical performance. In the present work, 2A12 aluminum alloys with different porosities were successfully prepared by cold pressing-vacuum sintering-dissolution process (SDP) with the CeO 2 additive, and the CeO 2 content effect on the microstructure and mechanical properties of the porous aluminum alloys were investigated. The results show that the open-cell porous aluminum with uniform holes can be obtained by SDP. CeO 2 addition affects the microstructure of porous aluminum alloys and results in the formation of Al 11 Ce 3 phase in specimens, which can enhance mechanical properties of the alloys. With increasing content of CeO 2 , all the specimens have a trend of increasing first and then decreasing, and when the CeO 2 content equal to 0.2 wt%, the tensile and compression strengths of porous aluminum with different porosities achieved the maximum value. Keywords 2A12 porous aluminum • CeO 2 • Microstructure • Al 11 Ce 3 • Tensile and compression strengths

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Investigating the internal structure and mechanical properties of graphene nanoflakes enhanced aluminum foam

Cited by 30 publications

References 48 publications

Energy Absorption Behavior of Al-SiC-Graphene Composite Foam under a High Strain Rate

Energy Absorption Behavior of Al-SiC-Graphene Composite Foam under a High Strain Rate

Mechanical properties and energy absorbing capabilities of Z-pinned aluminum foam sandwich

Effects of CeO2 on the microstructure and properties of 2A12 porous aluminum

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