Nanoscratching of silver (100) with a diamond tip

Abstract Parallel molecular dynamics simulations of nanoindentation followed by nanoscratching were conducted on an fcc silver (1 0 0) surface using a diamond indenter. The simulations were performed using three different orientations of the indenter. For each orientation, simulations were performed for an indentation depth of 5 A and scratching length of 210 A. The damage on the substrate is investigated and the coefficient of friction calculated for all the three cases. The results show few sub-surface defects underneath the scratch groove, pile-up around the groove which is orientation dependent and that the friction coefficient varies from ∼0.37 to ∼0.57 depending on the tip orientation.

[1]  Jacobsen,et al.  Simulations of atomic-scale sliding friction. , 1996, Physical review. B, Condensed matter.

[2]  T. Stolarski.  Modern Tribology Handbook , 2003 .

[3]  Tománek,et al.  First-principles theory of atomic-scale friction. , 1990, Physical review letters.

[4]  G. McClelland,et al.  Atomic-scale friction of a tungsten tip on a graphite surface. , 1987, Physical review letters.

[5]  B. Persson,et al.  Sliding Friction: Physical Principles and Applications , 1997 .

[6]  E. Rabinowicz,et al.  Friction and Wear of Materials , 1966 .

[7]  J. Ziegler,et al.  stopping and range of ions in solids , 1985 .

[8]  D. Buckley,et al.  Surface effects in adhesion, friction, wear, and lubrication , 1981 .

[9]  Roger Smith,et al.  Nanoindentation of carbon materials , 2001 .

[10]  S. Ciraci,et al.  ATOMIC-SCALE STUDY OF DRY SLIDING FRICTION , 1997 .

[11]  J. Haile.  Molecular Dynamics Simulation , 1992 .

[12]  Roger Smith,et al.  Atomistic modelling of nanoindentation in iron and silver , 2001 .

[13]  B. Persson.  Theory of friction and boundary lubrication , 1993 .

[14]  Ranga Komanduri,et al.  Molecular dynamics simulation of atomic-scale friction , 2000 .

[15]  Robbins,et al.  Simulations of contact-line motion: Slip and the dynamic contact angle. , 1989, Physical review letters.

[16]  Bharat Bhushan,et al.  Modern tribology handbook, Volume 1 , 2001 .

[17]  F. P. Bowden,et al.  The Friction and Lubrication of Solids , 1964 .

[18]  Harrison,et al.  Molecular-dynamics simulations of atomic-scale friction of diamond surfaces. , 1992, Physical review. B, Condensed matter.

[19]  G. Ackland,et al.  Simple N-body potentials for the noble metals and nickel , 1987 .