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Fabrication of Graphene Reinforced Aluminum Composite by Semi-Solid Processing

[+] Author Affiliations
Mina Bastwros, Gap-Yong Kim

Iowa State University, Ames, IA

Kun Zhang, Shiren Wang

Texas Tech University, Lubbock, TX

Paper No. IMECE2013-63715, pp. V02BT02A030; 7 pages
doi:10.1115/IMECE2013-63715
From:
  • ASME 2013 International Mechanical Engineering Congress and Exposition
  • Volume 2B: Advanced Manufacturing
  • San Diego, California, USA, November 15–21, 2013
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5619-2
  • Copyright © 2013 by ASME

abstract

A composite made of graphene and aluminum is a promising material for many engineering applications due to its lightweight and relatively high strength properties. Unfortunately, the uniform dispersion of the graphene is considered one of the big challenges since the graphene clusters tend to deteriorate the mechanical properties of the composite. In this study, a graphene reinforced Al6061 composite has been investigated. The composites are fabricated by ball milling the graphene flakes and the Al6061 powder, followed by hot compaction in the semi-solid regime of the Al6061. In addition, a graphene reinforced composite with localized reinforced zones within the composite was also investigated The mechanical properties of the composites are measured by conducting a bend test, and microstructural analysis of the composite and fracture surfaces are performed. According to the bending test results, an enhancement in the strength is clearly observed.

Copyright © 2013 by ASME

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