Polarization in rotating dielectrics

Block, H.; Kluk, E.; McConnell, James R.; Scaife, B. K. P.

doi:10.1016/0021-9797(84)90041-9

Cited by 22 publications

(12 citation statements)

References 21 publications

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“…On the other hand, in the cellulose and BaTiO 3 suspensions [12,13], the resonance peak is observed in both ε 3 and ε 1 (case II). For an understanding of such a difference, a theoretical study on shear-modified ε * 1 derived by Block et al [24] is suggestive. Referring to their result, the following explanations are possible if we take into account two time constants: relaxation time of the polarization τ r and the characteristic time of the particle rotation given by τ c = (2/γ ).…”

Section: Third-order Dielectric Permittivitymentioning

confidence: 96%

Dielectric and electrical properties of electrorheological carbon suspensions

Negita

Misono

Yamaguchi

et al. 2008

Journal of Colloid and Interface Science

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Section: Third-order Dielectric Permittivitymentioning

confidence: 96%

Dielectric and electrical properties of electrorheological carbon suspensions

Negita

Misono

Yamaguchi

et al. 2008

Journal of Colloid and Interface Science

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“…Here the rate of spinning of individual cells, far removed s others, is measured as a function of the frequency and intensity of an applied rotating electric field. The theory for this phenomenon in rotating sinusoidally varying fields (Mischel and Pohl, 1983;Pohl, 1983a;Block et al, 1984) and in pulsed rotating fields (Pohl, 1983b~ 1983c) has been studied. The rate of spinning of a cell (ca.…”

Section: Ihtroductionmentioning

confidence: 99%

Electrical aspects of division control inSaccharomyces

et al. 1985

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“…With the present electrode geometry they are orthogonal and in a situation which has been analysed for spherical particles which polarize via a Debye Pellat process (single -c) 5,6 . Provided also that the particles are large enough to ignore Brownian rotational diffusion effects, that theory predicts…”

Section: Dielectric Spectra Under Shearmentioning

confidence: 99%

The Place of Dielectric Spectroscopy in Probing Electrorheology

Kyvelidis

Maïstros

Rattray

et al. 1999

Int. J. Mod. Phys. B

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The measurement of the dielectric spectra of PAnQR based ER fluids under shear and electric fields is discussed and results presented. Data in which either but not both shear or electric fields are present are submitted to analysis in terms of known theories. For flow alone, that analysis provides information on the attenuation of polarization by the uniform shear fields whilst the polarization of quiescent fluids by electric fields may lead to estimates of particles packing within the columns. Permittivity data when both fields are acting is presented, but in the absence of suitable theory, not modelled quantitatively. Empirical correlations are discussed and the conclusion drawn that fibrillation is readily suppressed by even moderate shear rates, although long range dipolar forces still persist to high shear rates.The dc conductance of these fluids have also been measured. This together with permittivity data under ER fluid working conditions has importance in establishing the electrical parameters for any ER fluid. 1.

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Polarization in rotating dielectrics

Cited by 22 publications

References 21 publications

Dielectric and electrical properties of electrorheological carbon suspensions

Dielectric and electrical properties of electrorheological carbon suspensions

Electrical aspects of division control inSaccharomyces

The Place of Dielectric Spectroscopy in Probing Electrorheology

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