한국분말야금학회지 Vol. 26 No. 5 (p.383-388)

자기 조립 반응에 의한 그래핀이 코팅된 알루미늄 입자의 합성 방법

Synthesis of Graphene Coated Aluminum Powders by Self-assemble Reaction
키워드 :
Aluminum composites,Graphene oxide,Self-assembly method,Surface modifications

목차

Abstract
1. 서 론
2. 실험방법
   2.1. 알루미늄 입자 표면 개질
   2.2. 산화 그래핀 코팅된 복합 소재 제조
3. 실험결과 및 고찰
4. 결 론
References

초록

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.