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Structure Factor Scaling in Fractal Aggregation of Colloidal Clusters

Published online by Cambridge University Press:  03 September 2012

Guillermo Ramírez-Santiago  and
Agustín E. González
Guillermo Ramírez-Santiago
Affiliation:
Instituto de Física, Universidad Nacional Autdóoma de México, Apdo Postal 20–364, México, 01000 D. F.
Agustín E. González
Affiliation:
Instituto de Física, Universidad Nacional Autdóoma de México, Apdo Postal 20–364, México, 01000 D. F.
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Abstract

We report the observation of spatial ordering of clusters that leads to a spinodal-type scaling of the structure factor S(q), in the 3D simulations of diffusion-limited colloid aggregation. We are able to clearly identify the peak in S(q) as arising from the correlation between particles belonging to nearest neighbor clusters. The S(q) has a terminal shape that corresponds to a close-packing of the clusters after gelation, in a concentration range larger than the one found in recent experiments.

PACS numbers: 02.70.-e, 05.40.+j, 64.60.Qb, 81.10.Dn

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 367: Symposium P – Fractal Aspects of Materials , 1994 , 447
Copyright
Copyright © Materials Research Society 1995

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References

[1] Kinetics of Aggregation and Gelation, edited by Family, F. and Landau, D. P. (Elsevier, Amsterdam, 1984).Google Scholar
[2] Weitz, D. A. and Huang, J. S., in Ref. 1, p. 19.Google Scholar
[3] Carpineti, M. and Giglio, M., Phys. Rev. Lett. 68, 3327 (1992).Google Scholar
[4] Bibette, J., Mason, T. G., Gang, H. and Weitz, D. A., Phys. Rev. Lett. 69, 981 (1992).Google Scholar
[5] Carpineti, M. and Giglio, M., Phys, Rev. Lett. 70, 3828 (1993).Google Scholar
[6] Watts, R. O. and McGee, I. J., Liquid State Chemical Physics, (Wiley, New York, 1976).Google Scholar
[7] Gonzilez, A. E., Phys. Rev. Lett. 71, 2248 (1993).Google Scholar
[8] Dietler, G., Aubert, C., Cannell, D. S. and Wiltzius, P., Phys. Rev. Lett. 57, 3117 (1986).Google Scholar