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Nanoscale Structure and High Velocity Sliding at Cu/Ag Interfaces

Published online by Cambridge University Press:  15 March 2011

James E. Hammerberg ,
Timothy C. Germann ,
Brad Lee Holian  and
Ramon Ravelo
James E. Hammerberg
Affiliation:
Applied Physics Division, Los Alamos National Laboratory, Los Alamos, NM 87545
Timothy C. Germann
Affiliation:
Applied Physics Division, Los Alamos National Laboratory, Los Alamos, NM 87545
Brad Lee Holian
Affiliation:
Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545
Ramon Ravelo
Affiliation:
Department of Physics and Materials Research Institute, University of Texas-El Paso, El Paso, TX 79968-0515
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Abstract

We present the results of large-scale NonEquilibrium Molecular Dynamics (NEMD) simulations for Cu/Ag interfaces sliding in the velocity regime 0≤v≤1Km/sec. System sizes of 2.8 × 106 atoms are considered using Embedded Atom Method (EAM) potentials. Single crystals with 010 interfaces sliding along the <100> direction are considered. We discuss the observed velocity weakening in the tangential force at high velocities, and its connection with the observed dislocation structure and nanostructure that are nucleated during dry sliding.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 821: Symposium P – Nanoscale Materials & Modeling-Relations Among Processing, Microstructure and Mechanical Properties , 2004 , P6.5
Copyright
Copyright © Materials Research Society 2004

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References

1. Bowden, F.P. and Tabor, D., The Friction and Lubrication of Solids, Parts I and II, (Clarendon Press, Oxford, 1964).Google Scholar
2. Daw, M.S., Foiles, S.M., Baskes, M.I., Materials Science Reports 9, 251–310 (1993).Google Scholar
3. Hammerberg, J.E., Holian, B.L., Röder, J. R, Bishop, A.R., and Zhou, S.J., Physica D123, 330–340 (1998).Google Scholar
4. Hammerberg, J.E. and Holian, B.L., “Simulation Methods for Interfacial Friction in Solids,” Surface Modification and Processing: Physical and Chemical Tribological Methodologies, ed. Totten, G.E. and Liang, H. (M. Dekker, New York, 2004) (in press).Google Scholar
5. Beazley, D.M., Lomdahl, P.S., Grønbech-Jensen, N., Giles, R. and Tamayo, P., Ann. Rev. of Comp. Phys. III, ed. Stauffer, D. (World Scientific, Singapore, 1996), pp.119–175.Google Scholar
6. Sprague, J.A., Montalenti, F., Uberuaga, B.P., Kress, J.D., and Voter, A.F., Phys. Rev. B66, 205415 (2002).Google Scholar
7. Kelchner, C.L., Plimpton, S.J., and Hamilton, J.C., Phys. Rev. B58, 11085–11088 (1998).Google Scholar
8. Hammerberg, J.E., Ravelo, R., Germann, T.C., Holian, B.L., and Kress, J.D., “Sliding Friction at Compressed Ta/Al Interfaces,” Shock Compression of Condensed Matter-2003, ed. Forbes, J. (AIP Press, Melville, N. Y., 2004) (in press).Google Scholar
9. Hammerberg, J.E., Germann, T.C., and Holian, B.L., “Modeling High Speed Friction at Ductile Metal Interfaces,” Proc. Int. Conf. on New Models and Hydrocodes for Shock Wave Processes in Condensed Matter, Edinburgh, Scotland, 2002 (to be published).Google Scholar