Electrical conductivity of colloidal systems during irreversible aggregation

The low-frequency electrical conductivity of dielectric colloids (polysterene and silica) and metallic (silver) ones in aqueous solutions shows a power-law behavior in time during the salt-induced cluster-cluster aggregation. We interpret this fact using current theories of heterogeneous dielectric systems. The fractal nature of the clusters, checked by light scattering, determines the exponent of the power law.

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Year of publication:	1990
Authors:	Bordi, F. ; Cametti, C. ; Codastefano, P. ; Tartaglia, P.
Published in:	Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 164.1990, 3, p. 663-672
Publisher:	Elsevier

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Type of publication:	Article
Source:	RePEc - Research Papers in Economics

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