Please use this identifier to cite or link to this item:
|Morphological changes in convection-diffusion-limited deposition
Sagués i Mestre, Francesc
|The American Physical Society
|The effect of hydrodynamic flow upon diffusion-limited deposition on a line is investigated using a Monte Carlo model. The growth process is governed by the convection and diffusion field. The convective diffusion field is simulated by the biased-random walker resulting from a superimposed drift that represents the convective flow. The development of distinct morphologies is found with varying direction and strength of drift. By introducing a horizontal drift parallel to the deposition plate, the diffusion-limited deposit changes into a single needle inclined to the plate. The width of the needle decreases with increasing strength of drift. The angle between the needle and the plate is about 45° at high flow rate. In the presence of an inclined drift to the plate, the convection-diffusion-limited deposit leads to the formation of a characteristic columnar morphology. In the limiting case where the convection dominates, the deposition process is equivalent to ballistic deposition onto an inclined surface.
|Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevA.43.2970
|It is part of:
|Physical Review A, 1991, vol. 43, núm. 6, p. 2970-2976.
|Appears in Collections:
|Articles publicats en revistes (Ciència dels Materials i Química Física)
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.