There is increasing demand for the development of a new material with high strength, high stiffness, and good electrical conductivity that can be used for high-voltage direct current cables. In this study, we develop aluminumbased composites containing C60 fullerenes, carbon nanotubes, or graphene using a powder metallurgical route and evaluate their strength, stiffness, coefficient of thermal expansion, and electrical conductivity. By optimizing the process conditions, a material with a tensile strength of 800 MPa, an elastic modulus of 90 GPa, and an electrical conductivity of 40% IACS is obtained, which may replace iron-core cables. Furthermore, by designing the type and volume fraction of the reinforcement, a material with a tensile strength of 380 MPa, elastic modulus of 80 GPa, and electrical conductivity of 54% IACS is obtained, which may compete with AA 6201 aluminum alloys for use in all-aluminum conductor cables.

Abstract
1. 서 론
2. 실험방법
3. 실험결과 및 고찰
4. 결 론
References

• 김정준(국민대학교 신소재공학부) | Jungjoon Kim (School of Materials Science and Engineering, Kookmin University)
• 김대영(국민대학교 신소재공학부) | Daeyoung Kim (School of Materials Science and Engineering, Kookmin University)
• 최현주(국민대학교 신소재공학부) | Hyunjoo Choi (School of Materials Science and Engineering, Kookmin University) Corresponding Author