Computer Simulations on Mechanical Properties of Molecular Deposition Film

Abstract:

Article Preview

The mechanical properties of the molecular deposition film deposited on an Au substrate are studied in the theory for the first time. Firstly, the quantum mechanics have been used to calculate the structure parameters and potential parameters of the molecular deposition film. Secondly, molecular dynamics simulations have been used to study indent process of the molecular deposition film with the action of Au tip. The results showed that an obvious jump to contact appears during the Au tip approaches the molecular deposition film; furthermore, the tilt angle and load of the molecules near the tip have the same tendency of hysteresis, which may be caused by the adhesive force between the tip and the molecular deposition film.

Info:

Periodical:

Materials Science Forum (Volumes 475-479)

Main Theme:

Edited by:

Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie

Pages:

3665-3668

DOI:

10.4028/www.scientific.net/MSF.475-479.3665

Citation:

H. Q. Lan et al., "Computer Simulations on Mechanical Properties of Molecular Deposition Film", Materials Science Forum, Vols. 475-479, pp. 3665-3668, 2005

Online since:

January 2005

Export:

Price:

$35.00

[1] S.W. Zhang, M.L. Gao, Q.B. Wang: Tribology 2000-plus (2000), p.2145.

[2] Q.B. Wang, H.C. Gu, M.L. Gao, S.W. Zhang: Proc. 4th Conf. on thin film physics and application (2000), p.721.

[3] Q.B. Wang, M.L. Gao, S.W. Zhang: Material Science and Engineering C Vol. 10 (1999), p.127.

[4] Q.B. Wang, M.L. Gao, S.W. Zhang: Science in China (Series B) Vol. 43 (2000), p.137.

[5] H.Q. Lan, S.W. Zhang: Tribology International Vol. 37 (2004), p.661.

[6] K.J. Tupper, D.W. Brenner: Thin Solid Films Vol. 253(1994), p.185.

[7] A. Koike, M. Yoneya: J. Chem. Phy. Vol. 105 (1996), p.6060.

[8] T. Bonner, A. Baratoff: Surface Science Vol. 377-379 (1997), p.1082.

In order to see related information, you need to Login.