Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Carbon Nanotube Reinforced Metal Matrix Nanocomposites via Equal Channel Angular Pressing

  • Quang, Pham (Department of Metallurgical Engineering, Chungnam National University) ;
  • Jeong, Young-Gi (Korea Institute of Industrial Technology) ;
  • Yoon, Seung-Chae (Department of Metallurgical Engineering, Chungnam National University) ;
  • Hong, Sun-Ig (Department of Metallurgical Engineering, Chungnam National University) ;
  • Hong, Soon-Hyung (Korea Advanced Institute of Science and Technology) ;
  • Kim, Hyoung-Seop (Department of Metallurgical Engineering, Chungnam National University)
  • Published : 2006.09.24
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Abstract

In this study, bottom-up type powder processing and top-down type SPD (severe plastic deformation) approaches were combined in order to achieve full density of Carbon nanotube (CNT)/metal matrix composites with superior mechanical properties by improved particle bonding and least grain growth, which were considered as a bottle neck of the bottom-up method using the conventional powder metallurgy of compaction and sintering. ECAP (equal channel angular pressing), the most promising method in SPD, was used for the CNT/Cu powder consolidation. The powder ECAP processing with 1, 2, 4 and 8 route C passes was conducted at room temperature.

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