Superlubricity in centimetres-long double-walled carbon nanotubes under   ambient conditions

doi:10.1038/NNANO.2013.217

CORC > 北京大学 > 信息科学技术学院

	Superlubricity in centimetres-long double-walled carbon nanotubes under ambient conditions
	Zhang, Rufan ; Ning, Zhiyuan ; Zhang, Yingying ; Zheng, Quanshui ; Chen, Qing ; Xie, Huanhuan ; Zhang, Qiang ; Qian, Weizhong ; Wei, Fei
刊名	nature nanotechnology
	2013
关键词	FRICTION ENERGY FILMS STRENGTH GROWTH SHELLS
DOI	10.1038/NNANO.2013.217
英文摘要	Friction and wear are two main causes of mechanical energy dissipation and component failure, especially in micro/nanomechanical systems with large surface-to-volume ratios. In the past decade there has been an increasing level of research interest regarding superlubricity(1-5), a phenomenon, also called structural superlubricity, in which friction almost vanishes between two incommensurate solid surfaces(2,3). However, all experimental structural superlubricity has been obtained on the microscale or nanoscale, and predominantly under high vacuum. Here, we show that superlubricity can be realized in centimetres-long double-walled carbon nanotubes (DWCNTs) under ambient conditions. Centimetres-long inner shells can be pulled out continuously from such nanotubes, with an intershell friction lower than 1 nN that is independent of nanotube length. The shear strength of the DWCNTs is only several pascals, four orders of magnitude lower than the lowest reported value in CNTs and graphite. The perfect structure of the ultralong DWCNTs used in our experiments is essential for macroscale superlubricity.; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; SCI(E); 0; ARTICLE; 12; 912-916; 8
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/390738]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Zhang, Rufan,Ning, Zhiyuan,Zhang, Yingying,et al. Superlubricity in centimetres-long double-walled carbon nanotubes under ambient conditions[J]. nature nanotechnology,2013.
APA	Zhang, Rufan.,Ning, Zhiyuan.,Zhang, Yingying.,Zheng, Quanshui.,Chen, Qing.,...&Wei, Fei.(2013).Superlubricity in centimetres-long double-walled carbon nanotubes under ambient conditions.nature nanotechnology.
MLA	Zhang, Rufan,et al."Superlubricity in centimetres-long double-walled carbon nanotubes under ambient conditions".nature nanotechnology (2013).