Effect of a change in the optical density of a magnetic emulsion in electric and magnetic fields

Erin, K. V.; Kunikin, S. A.

doi:10.1134/s0030400x08020227

Cited by 15 publications

(4 citation statements)

References 5 publications

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“…Fig. 5 shows the calculation of the optical density spectrum of a magnetic fluid with a concentration of 5% by formulas (7)(8)(9)(10) and the results of experimental measurement of this spectrum. The difference between experimental and calculated curves can be explained by the polydispersity of the sample.…”

Section: Resultsmentioning

confidence: 99%

“…Magnetic emulsions based on magnetic fluid are the object of a large number of experimental and theoretical studies [7]. In such systems, a number of unusual optical effects is associated with the formation of structures from microdroplets in electric and magnetic fields, as well as with deformation of droplets are observed [8,9]. Data of the complex refractive index of magnetic microdrops from a concentrated magnetic fluid are necessary for creating the models of optical effects in magnetic emulsions.…”

Section: Introductionmentioning

confidence: 99%

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Complex refractive index of concentrated magnetic fluids

2018

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The spectra of the real and imaginary parts of the refractive index of magnetic fluids based on kerosene with a solids phase concentration of 1% to 35% are experimentally measured. The comparison of calculations results have been made according to Maxwell-Garnett and Bruggeman’s models of effective medium approximation. The influence of refractive index spectra on the extinction of light in magnetic fluids is shown.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Complex refractive index of concentrated magnetic fluids

2018

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“…Interparticle interactions, structuring, and orientation effects in external fields in a magnetic fluid are traditionally studied using optical methods [13][14][15].…”

Section: Materials and Methods: Experimental Techniquementioning

confidence: 99%

Mathematical Modeling of Single and Phase Autowaves in a Ferrocolloid

Chekanov,

Kandaurova,

Kovalenko

2023

Mathematics

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This paper describes a mathematical model of an autowave process in a cell with a ferrocolloid. The model is a system of differential coupled equations of the second order and differs from the previously presented model in terms of its original boundary conditions. The mathematical modeling of autowaves presented in this work constitutes an innovative approach, since the characteristics of the wave process are not initially included in the model but the model demonstrates a wave motion. A 2D solution of the model, which shows the correctness of the described mechanism of the autowave process, i.e., the recharging of magnetic particles in dense near-electrode layers formed near the electrodes under the influence of an electric field, is obtained. The propagation of single and phase autowaves is demonstrated in a computer experiment.

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“…These processes affect the magnetic, rheological and optical properties of magnetic emulsions [8][9][10]. In magnetic emulsions, the field-induced drop deformation and structural transitions are investigated by measuring the diffraction patterns [11,12] and transmitted light intensity [13]. Magnetic emulsions are used for imaging internal defects in materials [14] and for novel tunable optical filters [15].…”

mentioning

confidence: 99%

Magneto-optic effect in water-based magnetic emulsions

2018

MHD

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Effect of a change in the optical density of a magnetic emulsion in electric and magnetic fields

Cited by 15 publications

References 5 publications

Complex refractive index of concentrated magnetic fluids

Complex refractive index of concentrated magnetic fluids

Mathematical Modeling of Single and Phase Autowaves in a Ferrocolloid

Magneto-optic effect in water-based magnetic emulsions

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