| CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES |
Prev
Next
|
|
|
Molecular dynamics study of mechanical characteristics of Ni/Cu bilayer using nanoindentation |
| Muhammad Imrana, Fayyaz Hussaina b, Muhammad Rashida, S. A. Ahmada |
a Department of Physics, Simulation Laboratory, The Islamia University of Bahawalpur, 63100, Pakistan;
b Department of Physics, National University of Singapore, 2 Science Drive 3, 117542 Singapore |
|
|
|
|
Abstract In the present work, a three-dimensional molecular dynamics simulation is carried out to perform the nanoindentation experiment on Ni single crystal. The substrate indenter system is modeled using hybrid interatomic potentials including many-body potential embedded atom method (EAM), and two-body morse potential. To simulate the indentation process, spherical indenter (diameter=80 Å, 1 Å=0.1 nm) is chosen. The results show that mechanical behaviour of a monolithic Ni is not affected by crystalline orientation. To elucidate the effect of heterogeneous interface, three bilayer interface systems are constructed, namely Ni(100)/Cu(111), Ni(110)/Cu(111), and Ni(111)/Cu(111). The simulations along these systems clearly describe that mechanical behaviour directly depends on the lattice mismatch. The interface with smaller mismatch between the specified crystal planes is proved to be harder and vice versa. To describe the relationship between film thickness and interface effect, we choose various values of film thickness ranging from 20 Å to 50 Å to perform nanoindentation experiment. It is observed that the interface is significant only for the relatively small thickness of film and the separation between interface and the indenter tip. It is shown that with the increase in film thickness, the mechanical behaviour of film shifts more toward that of monolithic material.
|
Received: 15 June 2012
Revised: 11 July 2012
Accepted manuscript online:
|
|
PACS:
|
68.35.Ct
|
(Interface structure and roughness)
|
| |
68.35.Ja
|
(Surface and interface dynamics and vibrations)
|
|
Corresponding Authors:
Fayyaz Hussain
E-mail: fiazz_hussain@yahoo.com
|
Cite this article:
Muhammad Imran, Fayyaz Hussain, Muhammad Rashid, S. A. Ahmad Molecular dynamics study of mechanical characteristics of Ni/Cu bilayer using nanoindentation 2012 Chin. Phys. B 21 126802
|
| [1] |
Clemens B M, Kung H and Barnett S A 1999 Mater. Res. Soc. Bull. 24 20
|
| [2] |
Misra A and Kung H 2001 Adv. Eng. Mater. 3 217
|
| [3] |
Spearot D E, Tschopp M A, Jacob K I and McDowell D L 2007 Acta Mater. 55 705
|
| [4] |
Li X and Bhushan B 2001 Thin Solid Films 313 398
|
| [5] |
Xu Z H and Li X 2006 Acta Mater. 54 1699
|
| [6] |
Li X, Bhushan B, Takashima K, Baek C W and Kim Y K 2003 Ultramicroscopy 97 481
|
| [7] |
Ruud J A, Jervis T R and Spaepen F 1994 J. Appl. Phys. 75 4969
|
| [8] |
Liu C L, Fang T H and Lin J F 2007 Mater. Sci. Eng. A 135 452
|
| [9] |
Kang B C, Kim H Y, Kwon O Y and Hong S H 2007 Scr. Mater. 57 703
|
| [10] |
Barshilia H C and Rajam K S 2002 Surf. Coat. Technol. 155 195
|
| [11] |
Chudoba T, Schwarzer N, Richter F and Beck U 2000 Thin Solid Films 377 366
|
| [12] |
Ni W, Cheng Y T, Cheng C M and Grummon D 2004 J. Mater. Res. 191 49
|
| [13] |
Peter Z Berke, Thierry and Massart J 2012 Tribology International 47 167
|
| [14] |
Landman U, Luedtke W D, Burnham N A and Colton R J 1990 Science 248 454
|
| [15] |
Li X and Bhushan B 1998 Thin Solid Films 315 214
|
| [16] |
Fang T H and Chang W J 2004 Microelectron. J. 35 595
|
| [17] |
Cheong W C D and Zhang L C 2000 Nanotechnology 11 173
|
| [18] |
Demidova N V, Wu X J and Liu R 2012 Eng. Frac. Mech. 82 17
|
| [19] |
Lin Y, Xu Z H, Debin S and Bin G 2012 Appl. Surf. Sci. 258 6111
|
| [20] |
Prasad M J N V and Chokshi A H 2012 Scripta Mater. 67 133
|
| [21] |
Ma Z S, Zhou Y C, Long S G and Lu C 2012 Int. J. Plasticity 34 1
|
| [22] |
Ping P, Guanglan L, Tielin S, Zirong T and Yang G 2010 Appl. Surf. Sci. 256 6284
|
| [23] |
Saraev D and Ronald E M 2006 Acta Mater. 54 33
|
| [24] |
Ranjana S and William D N 2002 Acta Mater. 50 23
|
| [25] |
Haiyi L, Woo C H, Hanchen H, Ngan A H W and Yu T X 2004 CMES 6 105
|
| [26] |
Liosatos N, Romanov A E, Zaiser M and Aifantis E C 1998 Scripta Mater. 38 819
|
| [27] |
Tsakalakos T and Hilliard J E 1983 J. Appl. Phys. 54 734
|
| [28] |
Baral D 1983 Ph. D. Thesis, Northwestern University
|
| [29] |
Baral D, Ketterson J B and Hilliard J E 1984 Modulated Structure Mater. ed. Tsakalakos T (Martinus Nijhoff: Dordreeht) p. 465
|
| [30] |
Liu Y, Bufford D, Wang H, Sun C and Zhang X 2011 Acta Mater. 59 1924
|
| [31] |
Foiles S M, Baskes M I and Daw M S 1986 Phys. Rev. B 33 7983
|
| [32] |
Daw M S and Baskes M I 1984 Phys. Rev. B 29 6443
|
| [33] |
Chang W Y, FangW Y, Lin S J and Huang J J 2010 Molecular Simulation 36 815
|
| [34] |
Plimpton S J 1995 J. Compd. Phys. 117 1
|
| [35] |
Saez J C J, Vazquez J D, Martin A M C P and Rodriguez J J J 2002 Nucl. Instr. & Method Phys. Res. B 193 359
|
| [36] |
Visual molecular dynamics VMD http://www.ks.uiuc.edu.
|
| [37] |
Greer J R and Nix W D 2005 Appl. Phys. A 80 1625
|
| [38] |
Carrasco E, Fuente O R, Gonzalez M A and Rojo J M 2003 Phys. Rev. B 68 180102
|
| [39] |
Tang Q H, Yang T Y and Ding L 2010 Chin. Phys. Lett. 27 026104
|
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
Altmetric
|
|
blogs
Facebook pages
Wikipedia page
Google+ users
|
Online attention
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
View more on Altmetrics
|
|
|
