Contact nanomechanics of a capped nanotube indented on graphite and diamond surfaces

Author

Te-Hua Fang ; Win-Jin Chang ; Yu-Cheng Fan

Author_Institution

Dept. of Mech. Eng., Nat. Kaohsiung Univ. of Appl. Sci., Kaohsiung, Taiwan

Volume

6

Issue

4

fYear

2011

fDate

4/1/2011 12:00:00 AM

Firstpage

214

Lastpage

216

Abstract

Contact behaviour of a capped single-walled carbon nanotube (SWCNT) indented into the surface of graphite sheets and diamond is studied using molecular dynamics simulation. The interactions between SWCNT, graphite and diamond atoms are described by the Tersoff-Brenner potential, and the Lennard-Jones potential function is employed to simulate the interactions between the indenter and the graphite and diamond atoms. The simulation results show that the maximum contact force increases with increasing indentation velocity and with decreasing indentation temperature. In addition, the diamond appears a greater force exerted on the indenter than the graphite sheets.

Keywords

Lennard-Jones potential; carbon nanotubes; diamond; graphite; mechanical contact; molecular dynamics method; nanoindentation; C; C-C; Lennard-Jones potential function; Tersoff-Brenner potential; capped nanotube; contact force; contact nanomechanics; diamond surfaces; graphite surfaces; indentation temperature; indentation velocity; molecular dynamics simulation; single-walled carbon nanotube;

fLanguage

English

Journal_Title

Micro & Nano Letters, IET

Publisher

iet

ISSN

1750-0443

Type

jour

DOI

10.1049/mnl.2011.0055

Filename

5771626