Kink Formation and Motion in Carbon Nanotubes at High Temperatures

by: JY Huang, S Chen, ZF Ren, ZQ Wang, DZ Wang, M Vaziri, Z Suo, G Chen, MS Dresselhaus

Physical Review Letters, Vol. 97, No. 7. (2006)

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Abstract

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.

@article{citeulike:816855, abstract = {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.}, author = {Huang, J. Y. and Chen, S. and Ren, Z. F. and Wang, Z. Q. and Wang, D. Z. and Vaziri, M. and Suo, Z. and Chen, G. and Dresselhaus, M. S. }, citeulike-article-id = {816855}, doi = {http://dx.doi.org/10.1103/PhysRevLett.97.075501}, journal = {Physical Review Letters}, keywords = {nanotube, plasticity}, number = {7}, posted-at = {2006-08-25 18:14:13}, priority = {2}, publisher = {APS}, title = {Kink Formation and Motion in Carbon Nanotubes at High Temperatures}, url = {http://dx.doi.org/10.1103/PhysRevLett.97.075501}, volume = {97}, year = {2006} }

RIS record

TY - JOUR ID - citeulike:816855 L3 - citeulike-article-id:816855 N2 - 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. IS - 7 JF - Physical Review Letters TI - Kink Formation and Motion in Carbon Nanotubes at High Temperatures PB - APS VL - 97 KW - nanotube KW - plasticity AU - Huang, JY AU - Chen, S AU - Ren, ZF AU - Wang, ZQ AU - Wang, DZ AU - Vaziri, M AU - Suo, Z AU - Chen, G AU - Dresselhaus, MS PY - 2006/// UR - http://dx.doi.org/10.1103/PhysRevLett.97.075501 ER -

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