Kink formation and motion in carbon nanotubes at high temperatures

被引：68

作者：

Huang, J. Y. ^{[1
]}

Chen, S.

Ren, Z. F.

Wang, Z. Q.

Wang, D. Z.

Vaziri, M.

Suo, Z.

Chen, G.

Dresselhaus, M. S.

机构：

[1] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA

[2] Univ Michigan, Dept Phys, Flint, MI 48502 USA

[3] Harvard Univ, Div Engn & Appl Sci, Cambridge, MA 02138 USA

[4] MIT, Dept Mech Engn, Cambridge, MA 02139 USA

[5] MIT, Dept Phys, Cambridge, MA 02139 USA

[6] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.97.075501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report that kink motion is a universal plastic deformation mode in all carbon nanotubes when being tensile loaded at high temperatures. The kink motion, observed inside a high-resolution transmission electron microscope, is reminiscent of dislocation motion in crystalline materials: namely, it dissociates and multiplies. The kinks are nucleated from vacancy creation and aggregation, and propagate in either a longitudinal or a spiral path along the nanotube walls. The kink motion is related to dislocation glide and climb influenced by external stress and high temperatures in carbon nanotubes.

引用

页数：4

共 27 条

[1] DISLOCATION LOOPS DUE TO QUENCHED-IN POINT DEFECTS IN GRAPHITE [J].