Electrical resistivity of magnetic fluids

Shalabi, Bassam; El‐Ghanem, H. M.

doi:10.1002/pssc.200304440

Cited by 2 publications

(3 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This may indicate the absence of a charge on the colloid particles based on kerosene stabilized by adsorption layers of oleic acid molecules. Note that this conclusion is inconsistent with the results of [39][40][41], in which it was concluded that colloidal particles may have a charge. It can be assumed that particles can acquire a charge when exposed to an electric field, as suggested in ref.…”

Section: Resultscontrasting

confidence: 66%

“…The origin of charged particles in non-polar solvents remains unclear. In some works, it is speculated that such systems contain a small fraction of both negatively and positively charged particles [39][40][41], while other researchers assume that initially the particles are not charged but can acquire a charge when they are near the electrodes [42][43][44].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Influence of Magnetic Fields on Electrophoretic Processes in Magnetic Colloids with Different Stabilization Mechanisms

Dikansky,

Drozdov,

Eskova

et al. 2023

Magnetochemistry

View full text Add to dashboard Cite

Electrophoretic nanostructuring is a promising approach for the creation of functional surfaces and active layers. The potency of this approach may be further enhanced by additional factors of various natures, such as magnetic fields. In this work, we have studied the process of electrophoresis in thin layers of water- and kerosene-based magnetic liquids and the effect of additional magnetic fields on the occurring processes. It was found that the electrophoresis process can be significantly affected by inhomogeneous magnetic fields. The possibility of compensating electrophoresis processes in such systems by means of inhomogeneous magnetic field influence was shown. Structural changes in magnetic colloids on hydrocarbon bases under the influence of an electric field have been studied. The role of electrohydrodynamic flows arising in this process is considered, and the influence of the magnetic field on the configuration of the formed labyrinth structure is studied. The dependence of the threshold value of the electric field strength corresponding to the emergence of the structure on the temperature and additionally applied magnetic field has been established. The obtained results could contribute to the development of an original method for determining the charge and magnetic moment of a single nanoparticle.

show abstract

Section: Resultscontrasting

confidence: 66%

Section: Introductionmentioning

confidence: 99%

The Influence of Magnetic Fields on Electrophoretic Processes in Magnetic Colloids with Different Stabilization Mechanisms

Dikansky,

Drozdov,

Eskova

et al. 2023

Magnetochemistry

View full text Add to dashboard Cite

show abstract

“…The model considered in [6,7] presumes that all particles of the disperse phase may have charge, posi tively and negatively charged particles being present in equal numbers. The authors of [8], who measured the complex impedance of a cell with a magnetic fluid, concluded that apart from free ions, charged colloidal particles make a certain contribution to charge trans fer; however, no information is given on the share of this contribution and the magnitude and sign of the particle charge.…”

Section: Introductionmentioning

confidence: 97%