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Colloidal Aggregation with a Drift: A computer simulation

Published online by Cambridge University Press:  10 February 2011

Agustín E. González  and
François Leyvraz
Agustín E. González
Affiliation:
Instituto de Física, Universidad Nacional Autónoma de México, Apartado Postal 20–364, 01000 México, D.F., Mexico
François Leyvraz
Affiliation:
Instituto de Física, Laboratorio de Cuernavaca, Universidad Nacional Autónoma de México, Apartado Postal 139-B, 62191 Cuernavaca, Morelos, Mexico
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Abstract

Preliminary results of an aggregation model that takes into account both the Brownian motion as well as the gravitational drift experienced by the colloidal particles and clusters is presented. It is shown that for high strengths of the drift the system crosses over to a regime different from diffusion-limited colloid aggregation, for which there is an increase of the fractal dimension, a speeding up of the aggregation rate and a widening of the cluster size distribution, becoming algebraically decaying with an exponent τ.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 463: Symposia EE – Statistical Mechanics in Physics and Biology , 1996 , 269
Copyright
Copyright © Materials Research Society 1997

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References

REFERENCES

[1] Michaels, A. S. and Bolger, J. C., I&EC fundamentals 1, p. 24 (1962).Google Scholar
[2] Couch, M., Ph. D. Thesis, Cambridge University, 1993.Google Scholar
[3] Allain, C., Cloitre, M. and Wafra, M., Phys. Rev. Lett. 74, p. 1478 (1995).Google Scholar
[4] Jullien, R. and Botet, R., Aggregation and Fractal Aggregates, World Scientific, Singapore, 1987.Google Scholar
[5] Vicsek, T., Fractal Growth Phenomena, World Scientific, Singapore, 1989.Google Scholar
[6] Lach-hab, M., Gonzalez, A. E. and Blaisten-Barojas, E., Phys. Rev. E 54, p. 5456 (1996).Google Scholar
[7] Ball, R. C, Weitz, D. A., Witten, T. A. and Leyvraz, F., Phys. Rev. Lett. 58, p. 274 (1987).Google Scholar
[8] Meakin, P., Phys. Rev. Lett. 51, p. 1119 (1983).Google Scholar
[9] Kolb, M., Botet, R. and Jullien, R., Phys. Rev. Lett. 51, p. 1123 (1983).Google Scholar
[10] Gonzalez, A. E., Phys. Rev. Lett. 71, p. 2248 (1993).Google Scholar
[11] Gonzalez, A. E. and Ramirez-Santiago, G., Phys. Rev. Lett. 74, p. 1238 (1995).Google Scholar
[12] Gonzalez, A. E. and Ramirez-Santiago, G., J. Coll. Interf. Sci. 182, p. 254 (1996).Google Scholar