 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 12804 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8044
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| In English (Mech. Solids): | | 4760 |
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| I.F. Golovnev, E.I. Golovneva, and V.M. Fomin, "Molecular-Dynamical Study of Surface Tension in Nanostructures," Mech. Solids. 45 (3), 343-351 (2010) |
| Year |
2010 |
Volume |
45 |
Number |
3 |
Pages |
343-351 |
| DOI |
10.3103/S0025654410030052 |
| Title |
Molecular-Dynamical Study of Surface Tension in Nanostructures |
| Author(s) |
I.F. Golovnev (Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of Russian Academy of Sciences, Institutskaya 4/1, Novosibirsk, 630090 Russia, golovnev@itam.nsc.ru)
E.I. Golovneva (Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of Russian Academy of Sciences, Institutskaya 4/1, Novosibirsk, 630090 Russia, elena@itam.nsc.ru)
V.M. Fomin (Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of Russian Academy of Sciences, Institutskaya 4/1, Novosibirsk, 630090 Russia, fomin@itam.nsc.ru) |
| Abstract |
In the present paper, we perform a molecular-dynamical study of the surface tension in nanodimensional structures. In this case, we find three types of surface characteristics corresponding to different mechanisms of the surface reaction to the external actions:
1. Compression of clusters by the system of surface atoms in the absence of external actions (the Laplace pressure) and the dependence of the internal pressure on the radius.
2. Reaction of the already compressed cluster to the additional external compressive or expansive pressure, which results in surface deformation and in variations both in the energy of the surface atoms and in the binding energy of the surface and the bulk atoms.
3. Energy necessary to form a new surface under unloading (the Griffith energy). |
| Keywords |
solid mechanics, surface tension, nanostructure, molecular-dynamical modeling |
| References |
| 1. | A. A. Griffith,
"The Theory of Rupture,"
in Proc. 1st Int. Congr. Appl. Mech. Delft, 1924
(Waltmun, Delft, 1925),
pp. 55-63. |
| 2. | A. F. Voter,
"Embedded Atom Method Potentials for Seven FCC Metals: Ni, Pd, Pt, Cu, Ag, and Al,"
in Los Alamos Unclassified Technical Report LA-UR-93-3901
(1993),
pp. 3901-3908. |
| 3. | E. I. Golovneva, I. F. Golovnev, and V. M. Fomin,
"Modeling of Quasistatic Processes in Crystals by a Method of Molecular Dynamics,"
Fizich. Mezomekh.
6 (6), 5-10 (2003). |
|
| Received |
26 January 2010 |
| Link to Fulltext |
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