Graphene oxide-reinforced aluminum alloy matrix composite materials fabricated by powder metallurgy

Hansang Kwon, Jayanta Mondal, Khaled AloGab, Väino Sammelselg, Miyazaki Takamichi, Akira Kawaski, Marc Leparoux

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

Graphene oxide (GO) powder was dispersed in an AlMg5 matrix using high energy ball milling. The obtained blend was then completely densified by hot pressing. No further hardening processing step was performed. Nevertheless, only 1 vol% of GO in the Aluminum alloy matrix leads to a significant improvement of the mechanical resistance. The ultimate tensile strength (540 MPa) and the macro hardness (166 HV) are increased by a factor of 2 compared to the same AlMg5 alloy without nanoparticulate material and compacted under the same conditions. The bending strength is even increased by a factor of 4 reaching a value over 800 MPa. The GO powder can be applied as a mechanical reinforcement to other scenarios such as polymer and ceramic systems.

Original languageEnglish
Pages (from-to)807-813
Number of pages7
JournalJournal of Alloys and Compounds
Volume698
DOIs
Publication statusPublished - 2017 Jan 1

Keywords

  • Aluminum-magnesium5 (AlMg5)
  • Flexural strength
  • Graphene oxide (GO)
  • Hot-pressing
  • Powder metallurgy
  • Tensile strength

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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    Kwon, H., Mondal, J., AloGab, K., Sammelselg, V., Takamichi, M., Kawaski, A., & Leparoux, M. (2017). Graphene oxide-reinforced aluminum alloy matrix composite materials fabricated by powder metallurgy. Journal of Alloys and Compounds, 698, 807-813. https://doi.org/10.1016/j.jallcom.2016.12.179