IMECH-IR  > 非线性力学国家重点实验室
Rotation of nanoflake driven by strain gradient fields in locally-indented graphene
Khan MB1,2,3; Wang S1,2,3; Wang C(王超)4; Chen SH(陈少华)1,2,3
Source PublicationNanotechnology
2019-10-09
Volume31Issue:1Pages:15303
ISSN0957-4484
Abstract

Abstract Rotation of nano-components is necessary in nanoscale mechanical systems (NMS) to enable various functions of nanomachines, however, the actuation and modulation of nanoscale rotation have been poorly investigated up to now. In this paper, we conduct molecular dynamics simulations to study the in-plane rotation of a graphene nanoflake hinged to a graphene substrate by easily accessible nanoindentation techniques. The flake can be driven to rotate by strain gradient fields (SGFs) induced by indenting the substrate locally. The effect of flake size, indenting velocity and position on flake rotation are studied systematically. It is found that there exists a critical range of flake size which is comparable to that of SGFs. The direction of flake rotation, i.e. clockwise or counterclockwise, can be tuned effectively by indenting the substrate asymmetrically with respect to the flake. Besides, the rotation can be speeded up by simply indenting more quickly. Furthermore, the flake can be trapped in a desired region on the substrate by adopting double SGFs. The continuous rotation of the flake can be realized by intermittently indenting the substrate near the flake. These results may be useful for designing the rotation of components in NMSs and nanoscale manipulation.

Keywordstrain gradient field graphene substrate nano-rotation nano-indenting molecular dynamic simulations
DOI10.1088/1361-6528/ab4441
Indexed BySCI ; EI
Language英语
WOS IDWOS:000504905700003
Classification二类/Q1
Ranking3
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/80649
Collection非线性力学国家重点实验室
Affiliation1.Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, People’s Republic of China;
2.Beijing Key Laboratory of Lightweight Multi-functional Composite Materials and Structures, Beijing Institute of Technology, Beijing, 100081, People’s Republic of China;
3.Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing Institute of Technology, Beijing, 100081, People’s Republic of China;
4.LNM, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
Recommended Citation
GB/T 7714
Khan MB,Wang S,Wang C,et al. Rotation of nanoflake driven by strain gradient fields in locally-indented graphene[J]. Nanotechnology,2019,31(1):15303.
APA Khan MB,Wang S,Wang C,&Chen SH.(2019).Rotation of nanoflake driven by strain gradient fields in locally-indented graphene.Nanotechnology,31(1),15303.
MLA Khan MB,et al."Rotation of nanoflake driven by strain gradient fields in locally-indented graphene".Nanotechnology 31.1(2019):15303.
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