Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Synthesis of Graphene Coated Aluminum Powders by Self-assemble Reaction

자기 조립 반응에 의한 그래핀이 코팅된 알루미늄 입자의 합성 방법

  • Hwang, Jin Uk (Fibrous Ceramics & Aerospace Materials Center, Convergence R&D Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Tak, Woo Seong (Fibrous Ceramics & Aerospace Materials Center, Convergence R&D Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Nam, Sang Yong (Functional Nano lab. Department of Polymer Engineering, Gyeongsang National University) ;
  • Kim, Woo Sik (Fibrous Ceramics & Aerospace Materials Center, Convergence R&D Division, Korea Institute of Ceramic Engineering & Technology)
  • 황진욱 (한국세라믹기술원 세라믹섬유항공소재센터) ;
  • 탁우성 (한국세라믹기술원 세라믹섬유항공소재센터) ;
  • 남상용 (경상대학교 고분자공학과) ;
  • 김우식 (한국세라믹기술원 세라믹섬유항공소재센터)
  • Received : 2019.09.26
  • Accepted : 2019.10.25
  • Published : 2019.10.28
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Abstract

To improve the mechanical properties of aluminum, graphene has been used as a reinforcing material, yielding graphene-reinforced aluminum matrix composites (GRAMCs). Dispersion of graphene materials is an important factor that affects the properties of GRAMCs, which are mainly manufactured by mechanical mixing methods such as ball milling. However, the use of only mechanical mixing process is limited to achieve homogeneous dispersion of graphene. To overcome this problem, in this study, we have prepared composite materials by coating aluminum particles with graphene by a self-assembly reaction using poly vinylalcohol and ethylene diamine as coupling agents. The scanning electron microscopy and Fourier-transform infrared spectroscopy results confirm the coating of graphene on the Al surface. Bulk density of the sintered composites by spark plasma sintering achieved a relative density of over 99% up to 0.5 wt.% graphene oxide content.

Keywords

References

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