논문 해외 국제전문학술지(SCI급) Reinforcing effects of carbon nanotubes in structural aluminum matrix nanocomposites
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2009-08
- 저자명 Hyunjoo Choi, Jaehyuck Shin, and Byungho Min, Junsik Park, Donghyun Baea)
- 학술지명 Materials Research Society
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 5
홈페이지
논문 초록 (Abstract)
The reinforcing effects of carbon nanotubes (CNTs) are investigated for aluminum matrix composites. The composites present a strong bonding between CNTs and the aluminum matrix using a controlled mechanical milling process, producing a network structure of aluminum atoms around CNTs. At the same time, CNTs that are dispersed during the milling process can be located inside aluminum powders, thereby providing an easy consolidation route via thermomechanical processes. A composite containing 4.5 vol% multiwalled CNTs exhibits a yield strength of 620 MPa and fracture toughness of 61 MPa·mm1/2, the values of which are nearly 15 and seven times higher than those of the corresponding starting aluminum, respectively.