Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Analyses of Densification and Plastic Deformation during Equal Channel Angular Pressing of CNT/Cu Powder Mixtures

CNT/Cu 혼합분말의 ECAP 공정 시 치밀화 및 소성변형 거동 해석

  • 팜쾅 (충남대학교 대학원 나노공학부) ;
  • 윤승채 (충남대학교 대학원 나노공학부) ;
  • 정영기 (한국생산기술연구원 생산공정기술본부) ;
  • 김형섭 (충남대학교 나노공학부)
  • Published : 2006.05.11
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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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