Energetics of plastic bending of carbon nanotubes

被引：26
作者：
Mori, Hideki
Ogata, Shigenobu
Li, Ju
Akita, Seiji
Nakayama, Yoshikazu
机构：
[1] Osaka Prefecture Univ, Dept Phys & Elect, Sakai, Osaka 5998531, Japan
[2] Osaka Univ, Ctr Atom & Mol Technol, Suita, Osaka 5650871, Japan
[3] Osaka Univ, Dept Mech Engn, Suita, Osaka 5650871, Japan
[4] Osaka Univ, Handai Frontier Res Ctr, Suita, Osaka 5650871, Japan
[5] Ohio State Univ, Dept Mat Sci & Engn, Columbus, OH 43210 USA
来源：
PHYSICAL REVIEW B | 2006年 / 74卷 / 16期
关键词：
D O I：
10.1103/PhysRevB.74.165418
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Plastic bending of single-wall carbon nanotubes is analyzed using minimum energy path calculation with a bond-order potential. The calculation demonstrates that plastic deformation is only thermodynamically favorable above a threshold "yield curvature" rho(yield), and is kinetically feasible above 1500 K, which agree with our experimental observations. A deformation mechanism map as function of temperature and bending curvature is constructed, and the dependence of rho(yield) on the nanotube diameter is analyzed.
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页数：5
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