Abstract
The low frequency ac-conductivity of deionized aqueous suspensions comprising of charged latex spheres is investigated. For the one-component cases σ increases linearly with particle number density n, irrespective of the suspension structure. Two-component mixtures are found to form substitutional crystals and no phase separation is observed for small size differences. Then σ is proportional to the sum of the individual conductivity contributions. Further at fixed composition the linear increase with n is retained. The effects can be well described with an extension of Hessinger’s conductivity model to two-component systems.
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Dates
Type | When |
---|---|
Created | 23 years, 1 month ago (July 26, 2002, 10:17 a.m.) |
Deposited | 2 years, 1 month ago (July 8, 2023, 3:44 p.m.) |
Indexed | 1 year ago (Aug. 27, 2024, 6:33 a.m.) |
Issued | 24 years, 4 months ago (May 1, 2001) |
Published | 24 years, 4 months ago (May 1, 2001) |
Published Print | 24 years, 4 months ago (May 1, 2001) |
@article{Wette_2001, title={Conductivity of deionized two-component colloidal suspensions}, volume={114}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.1355770}, DOI={10.1063/1.1355770}, number={17}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Wette, Patrick and Schöpe, Hans-Joachim and Biehl, Ralf and Palberg, Thomas}, year={2001}, month=may, pages={7556–7562} }