Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)
- 2006.09b
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- Pages.980-981
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- 2006
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
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.
Keywords
- Carbon nanotubes;
- Metal matrix nanocomposite;
- Equal channel angular pressing;
- Plastic deformation homogeneity;
- Densification