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.

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

• 황진욱(한국세라믹기술원 세라믹섬유항공소재센터/경상대학교 고분자공학과) | Jin Uk Hwang (Fibrous Ceramics & Aerospace Materials Center, Convergence R&D Division, Korea Institute of Ceramic Engineering & Technology/Functional Nano lab. Department of Polymer Engineering, Gyeongsang National University)
• 탁우성(한국세라믹기술원 세라믹섬유항공소재센터) | Woo Seong Tak (Fibrous Ceramics & Aerospace Materials Center, Convergence R&D Division, Korea Institute of Ceramic Engineering & Technology)
• 남상용(경상대학교 고분자공학과) | Sang Yong Nam (Functional Nano lab. Department of Polymer Engineering, Gyeongsang National University)
• 김우식(한국세라믹기술원 세라믹섬유항공소재센터) | Woo Sik Kim (Fibrous Ceramics & Aerospace Materials Center, Convergence R&D Division, Korea Institute of Ceramic Engineering & Technology) Corresponding Author