Cu matrix composites reinforced with chopped carbon fiber (CF), which is cost effective and can be well dispersed, are fabricated using electroless plating and hot pressing, and the effects of content and alignment of CF on the thermal properties of CF/Cu composites are studied. Thermal conductivity of CF/Cu composite increases with CF content in the in-plane direction, but it decreases above 10% CF; this is due to reduction of thermal diffusivity related with phonon scattering by agglomeration of CF. The coefficient of thermal expansion decreases in the in-plane direction and increases in the through-plane direction as the CF content increases. This is because the coefficient of thermal expansion of the long axis of CF is smaller than that of the Cu matrix, and the coefficient of thermal expansion of its short axis is larger than that of the Cu matrix. The thermal conductivity is greatly influenced by the agglomeration of CF in the CF/Cu composite, whereas the coefficient of thermal expansion is more influenced by the alignment of CF than the aggregation of CF.

Abstract
1.서 론
2. 실험방법
    2.1. CF/Cu 복합분말 제조
    2.2. CF/Cu 복합재료 제작
    2.3. 특성 분석
3. 결과 및 고찰
    3.1. 무전해도금에 미치는 산처리의 영향
    3.2. CF/Cu 복합분말 및 복합재료의 미세구조
    3.3. CF/Cu 복합재료의 열적 특성
4. 결 론
References

• 김민경(충남대학교 신소재공학과) | Minkyoung Kim (Department of Materials Science and Engineering, Chungnam National University)
• 한준현(충남대학교 신소재공학과) | Jun Hyun Han (Department of Materials Science and Engineering, Chungnam National University) Corresponding author