Artículo
Abstract:
We discuss the gravitational sedimentation of particles in terms of a stochastic model considering, in view of experimental evidence, that the aggregation to the growing surface (deposit) is mediated by the formation of a layer of suspended particles subject to gravitational forces, thermal agitation, as well as aggregation (contact) forces. The aggregation of such partially buoyant particles is ruled by the rates of occurrence of the different stochastic events: incorporation to the layer of suspended particles, sedimentation, and gravitationally biased diffusion. The model introduces bridges across different standard solid on solid deposition models which can be considered as limit cases of the present one. Analytical and numerical results show that for finite (realistic) deposits there are different regimes of aggregation including situations in which the deposit is grown completely during the transient time of the system. © 2003 The American Physical Society.
Registro:
| Documento: | Artículo |
| Título: | Dynamics of solid growth under a gravitational field: Influence of the formation of a diffusive layer |
| Autor: | Castez, M.F.; Blum, B.; Salvarezza, R.C.; Solari, H.G. |
| Filiación: | Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), UNLP, CONICET, Casilla de Correo 16, Sucursal 4, La Plata, 1900, Argentina Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, 1428, Argentina |
| Año: | 2003 |
| Volumen: | 67 |
| Número: | 6 |
| Página de inicio: | 8 |
| DOI: | http://dx.doi.org/10.1103/PhysRevE.67.061605 |
| Título revista: | Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics |
| Título revista abreviado: | Phys Rev E. |
| ISSN: | 1063651X |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1063651X_v67_n6_p8_Castez |
Referencias:
- Family, F., (1986) J. Phys. A, 19, p. L441
- Wilby, M.R., Vvedensky, D.D., Zangwill, A., (1992) Phys. Rev. B, 46, p. 12896
- G.L. Timp, Nanotechnology (Springer-Verlag, New York, 1999); Salvarezza, R.C., (1996) Phys. Rev. Lett., 77, p. 4572
- Edwards, S.F., Wilkinson, D.R., (1982) Proc. R. Soc. London, Ser. A, 381, p. 17
- S.N. Ethier and T.G. Kurtz, Markov Processes (Wiley, New York, 1986); A.L. Barabasi and H.E. Stanley, Fractal Concepts in Surface Growth (Cambridge University Press, Cambridge, 1995); P. Meakin, Fractals, Scaling and Growth Far from Equilibrium (Cambridge University Press, Cambridge, 1998); M.F. Castez (unpublished); Xin-Ya Lei, C.-H.Z., Wan, P., Ming, N.-B., (1996) Phys. Rev. E, 54, p. 5298
- Family, F., Vicsek, T., (1985) J. Phys. A, 18, p. L75
- N.G.V. Kampen, Stochastic Processes in Physics and Chemistry (North-Holland, Amsterdam, 1981); I.N. Sneddon, Elements of Partial Differential Equations (McGraw-Hill, New York, 1957)
Citas:
---------- APA ----------
Castez, M.F., Blum, B., Salvarezza, R.C. & Solari, H.G. (2003) . Dynamics of solid growth under a gravitational field: Influence of the formation of a diffusive layer. Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, 67(6), 8.http://dx.doi.org/10.1103/PhysRevE.67.061605
---------- CHICAGO ----------
Castez, M.F., Blum, B., Salvarezza, R.C., Solari, H.G. "Dynamics of solid growth under a gravitational field: Influence of the formation of a diffusive layer" . Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics 67, no. 6 (2003) : 8.http://dx.doi.org/10.1103/PhysRevE.67.061605
---------- MLA ----------
Castez, M.F., Blum, B., Salvarezza, R.C., Solari, H.G. "Dynamics of solid growth under a gravitational field: Influence of the formation of a diffusive layer" . Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, vol. 67, no. 6, 2003, pp. 8.http://dx.doi.org/10.1103/PhysRevE.67.061605
---------- VANCOUVER ----------
Castez, M.F., Blum, B., Salvarezza, R.C., Solari, H.G. Dynamics of solid growth under a gravitational field: Influence of the formation of a diffusive layer. Phys Rev E. 2003;67(6):8.http://dx.doi.org/10.1103/PhysRevE.67.061605
