Tensile loading of ropes of single wall carbon nanotubes and their mechanical properties

被引:2059
作者
Yu, MF
Files, BS
Arepalli, S
Ruoff, RS [1 ]
机构
[1] Washington Univ, Dept Phys, St Louis, MO 63130 USA
[2] NASA, Lyndon B Johnson Space Ctr, Mat & Proc Technol Branch, EM2, Houston, TX 77058 USA
[3] GB Tech Lockheed Martin, Houston, TX 77058 USA
关键词
D O I
10.1103/PhysRevLett.84.5552
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The mechanical response of 15 single wall carbon nanotube (SWCNT) ropes under tensile load was measured. For 8 of these ropes strain data were obtained and they broke at strain values of 5.3% or lower. The force-strain data are well fit by a model that assumes the load is carried by the SWCNTs on the perimeter of each rope. This model provides an average breaking strength of SWCNTs on the perimeter of each rope; the 15 values range from 13 to 52 GPa (mean 30 GPa). Based on the same model the 8 average Young's modulus values determined range from 320 to 1470 GPa (mean 1002 GPa).
引用
收藏
页码:5552 / 5555
页数:4
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