Dynamics of solid growth under a gravitational field: Influence of the formation of a diffusive layer

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 agitatio...

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Autores principales: Castez, Marcos Federico, Blum, Bárbara, Salvarezza, Roberto Carlos, Solari, Hernán Gustavo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2003
Materias:
Física
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/100380
https://ri.conicet.gov.ar/11336/75105
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-100380
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
spellingShingle Física
Castez, Marcos Federico
Blum, Bárbara
Salvarezza, Roberto Carlos
Solari, Hernán Gustavo
Dynamics of solid growth under a gravitational field: Influence of the formation of a diffusive layer
topic_facet Física
description 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.
format Articulo
Articulo
author Castez, Marcos Federico
Blum, Bárbara
Salvarezza, Roberto Carlos
Solari, Hernán Gustavo
author_facet Castez, Marcos Federico
Blum, Bárbara
Salvarezza, Roberto Carlos
Solari, Hernán Gustavo
author_sort Castez, Marcos Federico
title Dynamics of solid growth under a gravitational field: Influence of the formation of a diffusive layer
title_short Dynamics of solid growth under a gravitational field: Influence of the formation of a diffusive layer
title_full Dynamics of solid growth under a gravitational field: Influence of the formation of a diffusive layer
title_fullStr Dynamics of solid growth under a gravitational field: Influence of the formation of a diffusive layer
title_full_unstemmed Dynamics of solid growth under a gravitational field: Influence of the formation of a diffusive layer
title_sort dynamics of solid growth under a gravitational field: influence of the formation of a diffusive layer
publishDate 2003
url http://sedici.unlp.edu.ar/handle/10915/100380
https://ri.conicet.gov.ar/11336/75105
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