The effect of mechanically exfoliated graphene dispersion on the mechanical properties of aluminum/graphene composites

Seeun Shin, Donghyun Bae

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Effect of few-layer graphene on mechanical properties is investigated for aluminum (Al) based composites with different volume fraction of graphene. Al/few-layer graphene composites are produced by hot-rolled of ball-milled powders. Few-layer graphene prepared by the mechanical exfoliation of graphite flakes are attached to Al powder using a low energy ball milling, and then graphene are embedded and dispersed in the Al matrix using a high energy ball milling. Few-layer graphene with 100 nm in long axis and 5 layers thick play a great role as reinforcing agent in the Al matrix by obstruction of dislocation movements and grain growth in the composites. Therefore, the yield strength increases with increasing content of the graphene which demonstrates efficient load transfer between the Al matrix and graphene. The result can be suggested being the wider applications of graphene with improvement in mechanical properties of the composites.

Original languageEnglish
Title of host publicationLight Metals 2014 - At the TMS 2014 Annual Meeting and Exhibition
PublisherMinerals, Metals and Materials Society
Pages1441-1442
Number of pages2
ISBN (Print)9781118889084
Publication statusPublished - 2014 Jan 1
EventLight Metals 2014 - TMS 2014 Annual Meeting and Exhibition - San Diego, CA, United States
Duration: 2014 Feb 162014 Feb 20

Other

OtherLight Metals 2014 - TMS 2014 Annual Meeting and Exhibition
CountryUnited States
CitySan Diego, CA
Period14/2/1614/2/20

Fingerprint

Graphite
Aluminum
Graphene
graphene
mechanical properties
aluminum
Mechanical properties
composite materials
Composite materials
balls
Ball milling
Powders
matrices
flakes
yield strength
Grain growth
Yield stress
Volume fraction
graphite
energy

All Science Journal Classification (ASJC) codes

  • Metals and Alloys
  • Materials Chemistry
  • Condensed Matter Physics

Cite this

Shin, S., & Bae, D. (2014). The effect of mechanically exfoliated graphene dispersion on the mechanical properties of aluminum/graphene composites. In Light Metals 2014 - At the TMS 2014 Annual Meeting and Exhibition (pp. 1441-1442). Minerals, Metals and Materials Society.
Shin, Seeun ; Bae, Donghyun. / The effect of mechanically exfoliated graphene dispersion on the mechanical properties of aluminum/graphene composites. Light Metals 2014 - At the TMS 2014 Annual Meeting and Exhibition. Minerals, Metals and Materials Society, 2014. pp. 1441-1442
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Shin, S & Bae, D 2014, The effect of mechanically exfoliated graphene dispersion on the mechanical properties of aluminum/graphene composites. in Light Metals 2014 - At the TMS 2014 Annual Meeting and Exhibition. Minerals, Metals and Materials Society, pp. 1441-1442, Light Metals 2014 - TMS 2014 Annual Meeting and Exhibition, San Diego, CA, United States, 14/2/16.

The effect of mechanically exfoliated graphene dispersion on the mechanical properties of aluminum/graphene composites. / Shin, Seeun; Bae, Donghyun.

Light Metals 2014 - At the TMS 2014 Annual Meeting and Exhibition. Minerals, Metals and Materials Society, 2014. p. 1441-1442.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - Effect of few-layer graphene on mechanical properties is investigated for aluminum (Al) based composites with different volume fraction of graphene. Al/few-layer graphene composites are produced by hot-rolled of ball-milled powders. Few-layer graphene prepared by the mechanical exfoliation of graphite flakes are attached to Al powder using a low energy ball milling, and then graphene are embedded and dispersed in the Al matrix using a high energy ball milling. Few-layer graphene with 100 nm in long axis and 5 layers thick play a great role as reinforcing agent in the Al matrix by obstruction of dislocation movements and grain growth in the composites. Therefore, the yield strength increases with increasing content of the graphene which demonstrates efficient load transfer between the Al matrix and graphene. The result can be suggested being the wider applications of graphene with improvement in mechanical properties of the composites.

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Shin S, Bae D. The effect of mechanically exfoliated graphene dispersion on the mechanical properties of aluminum/graphene composites. In Light Metals 2014 - At the TMS 2014 Annual Meeting and Exhibition. Minerals, Metals and Materials Society. 2014. p. 1441-1442