Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1573016 | Materials Science and Engineering: A | 2016 | 10 Pages |
Abstract
There are four technical difficulties in preparing carbon nanotubes/Cu composites: interface between carbon nanotubes/Cu, dispersion of carbon nanotubes (CNTs), densification of composites, and orientation of CNTs. Thus, Ni-Cu bilayers on Single-walled nanotubes (SWCNTs) was prepared through electroless plating to build up strong interaction between CNTs and Cu matrix. Powders were mixed through ultrasonic-assisted mechanical agitating to disperse SWCNTs homogeneously in Cu matrix. We employed hot forging to densify composite samples and Die-stretching to align SWCNTs. SWCNTs uniformly dispersed in the dense composites and aligned along stretch direction. The hardness and tensile strength increased 67.3% and 30.4% via the addition of 5Â vol% SWCNTs, respectively. The 5Â vol% SWCNTs/Cu composite were anisotropic in strength and conductivity. The mechanisms underlying the improved mechanical and conductive behavior were evaluated, and this research provides novel ideas and technology for the distribution and directional alignment of CNTs in the matrix.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Shan Zhao, Zhong Zheng, Zixin Huang, Shijie Dong, Ping Luo, Zhuang Zhang, Yaowei Wang,