Experimental and numerical investigation into the effect of carbon nanotube buckling on the reinforcement of CNT/Cu composites

Ping Chi Tsai, Yeau Ren Jeng

研究成果: Article同行評審

42 引文 斯高帕斯(Scopus)

摘要

Carbon nanotube reinforced copper matrix (CNT/Cu) composites with high strength and good damping have been developed using acid treatment, sintering processes and consolidation techniques. Strengthening of the composites as a result of nanotube buckling has been demonstrated by experimental nanoindentation tests and molecular dynamics (MD) simulations. The experimental results show that the buckling behavior of additional CNTs in the CNT/Cu composites varies with the slenderness ratio of CNTs. Specifically, this study shows that the significant buckling behavior of CNTs in the CNT/Cu composites where the shorter CNTs (with a smaller slenderness ratio) give rise to a global buckling and the slender CNTs (with a larger slenderness ratio) induce local buckling. The MD simulation results reveal that the buckling behavior of the CNTs plays a key role in increasing the mechanical strength of CNT/Cu composites by acting as a " buffer" in releasing excess strain in the Cu matrix.

原文English
頁(從 - 到)28-34
頁數7
期刊Composites Science and Technology
79
DOIs
出版狀態Published - 2013 四月 8

All Science Journal Classification (ASJC) codes

  • 陶瓷和複合材料
  • 工程 (全部)

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