Sedimentation of a nonconducting sphere in a spherical cavity

Article Abstract:

The sedimentation of a nonconducting spherical particle in a spherical cavity is analyzed theoretically. It is shown that, for the case where the former is positively charged and the latter uncharged, the sedimentation velocity of the particle decreases with ka, k and a being respectively the reciprocal Debye length and the radius of the particle.

Electrophoresis, Electric charge and distribution, Electric charge, Colloid chemistry

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Conductivity of concentrated spherical colloidal dispersion

Article Abstract:

The cell model proposed by Kuwabara is adopted to simulate the present many-body problem by taking the effect of double-layer polarization into account. For both ka -> 0 and ka -> infinity, (k*/k(super infinity)) decreases with the increase in the volume fraction of the dispersed phase and the reverse is true for the medium ka.

Electrical conductivity, Polarization (Electricity)

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Dynamic electrophoretic mobility of concentrated spherical dispersions

Article Abstract:

The electrophoretic behavior of a concentrated spherical dispersion is investigated on the basis of the cell model of Shilov and Zharikikh. The results viewed that the mobility decreases with an increase in the frequency of the applied electric field.

Observations, Electric properties, Optical properties, Dispersion, Dispersion (Optics), Electrophoretic deposition

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