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Electrical conductivity of colloidal systems during irreversible aggregation

✍ Scribed by F. Bordi; C. Cametti; P. Codastefano; P. Tartaglia

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 436 KB
Volume: 164
Category: Article
ISSN: 0378-4371
DOI: 10.1016/0378-4371(90)90227-j

No coin nor oath required. For personal study only.

✦ Synopsis

The low-frequency electrical conductivity of dielectric colloids (polystyrene 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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