Magnetically Induced Structural Difference in Ferrofluids and Magnetorheological Fluids

Virpura, Hiral; Parmar, Mayur; Patel, Rajesh

doi:10.1166/jon.2014.1095

Cited by 2 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The range of changes in the properties of magnetorheological liquids is dependent on many parameters, including the volumetric share of magnetic particles in the liquid, the size, shape, and magnetic properties of the particles, the type and quantity of stabilizers and additives used, as well as the value of the used magnetic field. In their work, Virpura et al (2014) prepared a liquid using magnetic nanoparticles (∼10 nm) and micron-sized magnetic particles (∼10 μm). The authors observed a significant difference in the formation of magnetically induced structures in both fluids, which they consider to be mainly due to magnetically induced dipolar interaction, field-induced viscosity, and surface tension in both fluids.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the properties of selected magnetorheological fluids

Fenyk

Horak

Zieliński

et al. 2022

Journal of Intelligent Material Systems and Structures

View full text Add to dashboard Cite

The paper presents the results of research on the rheological properties of magnetorheological (MR) fluids with different physical and chemical compositions. The research concerned complete compositions of MR fluids as well as base fluids (samples containing no particles with ferromagnetic properties). Magnetorheological fluids consisted mainly of a carrier liquid in the form of glycerin or OKS 352 silicone oil, with magnetite or iron pentacarbonyl particles. The paper demonstrates the effect of the selection of individual components of the MR fluids on their rheological properties, paying attention to the interaction of the base liquid with the particles of the solid phase of the MR fluid. Under the conditions of exposure to a magnetic field, the type of ferromagnetic particles (their magnetic properties) have a decisive impact on the magnetorheological response of the fluid (change in rheological properties due to the effect of the magnetic field on the fluid). The magnetite-based samples showed a tangential stress of 1000 Pa, while the use of iron carbonyl allowed to obtain approximately 8000 Pa (with respect to the case where B = 500 mT, [Formula: see text]). No significant differences in rheological properties were recorded between the oleic acid- and silica-stabilized samples.

show abstract

Section: Introductionmentioning

confidence: 99%

Investigation of the properties of selected magnetorheological fluids

Fenyk

Horak

Zieliński

et al. 2022

Journal of Intelligent Material Systems and Structures

View full text Add to dashboard Cite

show abstract

Interfacial patterns in magnetorheological fluids: Azimuthal field-induced structures

2015

View full text Add to dashboard Cite

Despite their practical and academic relevance, studies of interfacial pattern formation in confined magnetorheological (MR) fluids have been largely overlooked in the literature. In this work, we present a contribution to this soft matter research topic and investigate the emergence of interfacial instabilities when an inviscid, initially circular bubble of a Newtonian fluid is surrounded by a MR fluid in a Hele-Shaw cell apparatus. An externally applied, in-plane azimuthal magnetic field produced by a current-carrying wire induces interfacial disturbances at the two-fluid interface, and pattern-forming structures arise. Linear stability analysis, weakly nonlinear theory, and a vortex sheet approach are used to access early linear and intermediate nonlinear time regimes, as well as to determine stationary interfacial shapes at fully nonlinear stages.

show abstract

Magnetically Induced Structural Difference in Ferrofluids and Magnetorheological Fluids

Cited by 2 publications

References 0 publications

Investigation of the properties of selected magnetorheological fluids

Investigation of the properties of selected magnetorheological fluids

Interfacial patterns in magnetorheological fluids: Azimuthal field-induced structures

Contact Info

Product

Resources

About