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Molecular-dynamical study of surface tension in nanostructures

Golovnev, I. ; Golovneva, E. ; Fomin, V.

Mechanics of Solids, 2010, Vol.45(3), pp.343-351 [Periódico revisado por pares]

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  • Título:
    Molecular-dynamical study of surface tension in nanostructures
  • Autor: Golovnev, I. ; Golovneva, E. ; Fomin, V.
  • Assuntos: solid mechanics ; surface tension ; nanostructure ; molecular-dynamical modeling
  • É parte de: Mechanics of Solids, 2010, Vol.45(3), pp.343-351
  • Descrição: 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).
  • Idioma: Inglês

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