"Interwall Friction and Sliding Behavior of Centimeters Long Double-Walled Carbon Nanotubes"

Rufan Zhang: Zhiyuan Ning, Ziwei Xu, Yingying Zhang, Huanhuan Xie, Feng Ding, Qing Chen, Qiang Zhang, Weizhong Qian, Yi Cui, and Fei Wei; Nano Letters, 01/19/16.

Additional Authors: Zhiyuan Ning, Ziwei Xu, Yingying Zhang, Huanhuan Xie, Feng Ding, Qing Chen, Qiang Zhang, Weizhong Qian, Yi Cui, and Fei Wei

Abstract:

Abstract Image

Here, we studied the interwall friction and sliding behaviors of double-walled carbon nanotubes (DWCNTs). The interwall friction shows a linear dependence on the pullout velocity of the inner wall. The axial curvature in DWCNTs causes the significant increase of the interwall friction. The axial curvature also affects the sliding behavior of the inner wall. Compared with the axial curvature, the opening ends of DWCNTs play tiny roles in their interwall friction.