Results 61 to 70 of about 4,306 (166)

Relationship between ion concentration of ferrofluid and response signals of magnetic nanoparticles against ac magnetic fields

open access: yesAIP Advances, 2017
Harmonic components of magnetic signals from ferrofluids excited by alternating magnetic fields are studied in view of applications to liquid sensing.
Shoya Oda, Yoshitaka Kitamoto
doaj   +1 more source

Impact of Magnetic Fields and Fins on Entropy Generation, Thermal, and Hydrodynamic Performance in the Ferrofluids Flow within a Mini Channel [PDF]

open access: yesJournal of Applied Fluid Mechanics
The present work reports a CFD study of the magneto-convection of a ferrofluid (Fe3O4/water) circulating in a mini-channel under the influence of different vortex generators (fins and permanent magnets).
L. Boutas   +3 more
doaj   +1 more source

Soft Skins With Reversible Thickness Morphing: Materials, Mechanisms, and Applications

open access: yesAdvanced Materials, Volume 38, Issue 55, 1 October 2026.
Evolution of electronic skin (e‐skin) technologies toward adaptive, multifunctional soft skins. Phase I highlights early rigid and discrete sensory interfaces. Phase II shows the transition toward flexible, stretchable, and large‐area e‐skin. Phase III captures the emergence of computational e‐skin.
Oliver Ozioko   +2 more
wiley   +1 more source

Neutron Investigations of Ferrofluids

open access: yes, 2015
A review of neutron scattering researches of various magnetic fluids (ferrofluids) is made. Advantages and disadvantages of other complementary methods for the structure characterization of ferrofluids are discussed.
Kopcansky, P.   +6 more
core   +1 more source

Effect of Microstructural Changes on the Magnetization Dynamics Mechanisms in Ferrofluids Subjected to Alternating Magnetic Fields

open access: yesMagnetochemistry
We investigated the effects of chemical and physical changes on the interplay between the Néel and Brown superspin relaxation mechanisms in ferrofluids containing 18 nm-diameter Co0.2Fe2.8O4 magnetic nanoparticles.
Cristian E. Botez, Zachary Musslewhite
doaj   +1 more source

Ferrofluid Microdroplet Splitting for Population‐Based Microfluidics and Interfacial Tensiometry

open access: yesAdvanced Science, 2020
Ferrofluids exhibit a unique combination of liquid properties and strong magnetic response, which leads to a rich variety of interesting functional properties.
Mika Latikka   +8 more
doaj   +1 more source

Regulating Droplet Dynamics via Wormlike Micelle Networks: From Splash Suppression to Precise Confined Spreading

open access: yesAdvanced Science, Volume 13, Issue 57, 14 October 2026.
As displayed in Graphical Abstract image.tif, a molecular‐design strategy precisely tailors high‐speed droplet dynamics through programmed surfactant co‐assembly. The structural transition into an entangled wormlike micelle network completely suppresses stochastic splashing on fibrous substrates.
Shuling Liu   +6 more
wiley   +1 more source

Bio‐Inspired Gradient Coatings Enhance the Leading Edge Erosion Resistance of Wind Blades

open access: yesAdvanced Science, Volume 13, Issue 60, 28 October 2026.
Rain‐induced erosion of the wind turbine blade leading edge poses a critical challenge to maintenance and operation. Here, we propose a bio‐inspired approach for erosion protection utilising a platelet‐reinforced polyurethane coating with a graded through‐thickness architecture.
Natalia Sofia Guevara‐Sotelo   +2 more
wiley   +1 more source

Magnetization behavior of ferrofluids with cryogenically imaged dipolar chains [PDF]

open access: yes, 2008
Theories and simulations have demonstrated that field-induced dipolar chains affect the static magnetic properties of ferrofluids. Experimental verification, however, has been complicated by the high polydispersity of the available ferrofluids, and the ...
Klokkenburg, M.   +7 more
core   +1 more source

Experimental methods in chemical engineering: Magnetometry

open access: yesThe Canadian Journal of Chemical Engineering, Volume 104, Issue 10, Page 5176-5188, October 2026.
Abstract Magnetometry is a non‐invasive technique to characterize the behaviour of magnetic materials of which the most common contain Fe, Co, and Ni. Vibrating sample magnetometers (VSMs) vibrate samples at a fixed frequency in a static, homogeneous magnetic field to induce a voltage in pick up coils according to Faraday's law of induction.
Michael Claeys   +3 more
wiley   +1 more source

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