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Fabricating and strengthening the carbon nanotube/copper composite fibers with high strength and high electrical conductivity

  • Baoshuai Han
  • , Enyu Guo
  • , Xiang Xue*
  • , Zhiyong Zhao
  • , Tiejun Li
  • , Yanjin Xu
  • , Liangshun Luo
  • , Hongliang Hou
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • Aviation Industry Corporation of China Manufacture Technology Institute
  • Dalian University of Technology
  • Beihang University

Research output: Contribution to journalArticlepeer-review

Abstract

Combining the excellent properties of carbon nanotube (CNT) and copper, CNT/Cu composite fibers were fabricated by physical vapor deposition (PVD) and rolling treatment. Dense and continuous copper film (∼2 μm) was coated on the surface of the CNT fibers by PVD, and rolling treatment was adopt to strengthen the CNT/Cu composite fibers. After the rolling treatment, the defects between the Cu grains and the CNT bundles were eliminated, and the structure of both the copper film and the core CNT fibers were optimized. The rolled CNT/Cu composite fibers possess high tensile effective strength (1.01 ± 0.13 GPa) and high electrical conductivity ((2.6 ± 0.3) × 10 7 S/m), and thus, this material may become a promising wire material.

Original languageEnglish
Pages (from-to)984-992
Number of pages9
JournalApplied Surface Science
Volume441
DOIs
StatePublished - 31 May 2018
Externally publishedYes

Keywords

  • CNT/Cu composite fibers
  • Physical vapor deposition
  • Property
  • Rolling treatment
  • Wire material

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