Buckling behaviors of single-walled carbon nanotubes filled with metal atoms
Buckling behaviors of single-walled carbon nanotubes filled with metal atoms
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DOI：
10.1063/1.2767249
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发表时间：
2007-08
影响因子：
4
通讯作者：
Liding Wang;Hongwu W. Zhang;Zhongqiang Zhang;Yonggang Zheng;J. B. Wang
中科院分区：
文献类型：
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作者：
Liding Wang;Hongwu W. Zhang;Zhongqiang Zhang;Yonggang Zheng;J. B. Wang
用分子动力学方法研究了镍、铜和铂原子填充的单壁碳纳米管在轴向压缩下的屈曲变形。充填管材的临界屈曲应变在金属原子数达到临界值之前线性减小，然后随着原子个数的增加而线性增加。对于完全填充金属的单壁碳纳米管，其临界应变大于中空管的临界应变。此外，完全填充Ni原子的单壁碳纳米管的临界应变大于充满铜或铂原子的单壁碳管的临界应变。
Molecular dynamics method is employed to investigate the buckling deformations of single-walled carbon nanotubes(SWCNTs) filled with nickel(Ni),copper(Cu), and platinum (Pt) atoms under axial compression. The critical buckling strains of filled tubes decrease linearly before a critical number of metal atoms and then increase linearly when more atoms are encapsulated. For SWCNT completely filled with metals, its critical strain is larger than that of the hollow tube. Furthermore, the critical strain of SWCNT completely filled with Ni atoms is larger than that of the tube fully filled with Cu or Pt atoms.