Results 11 to 20 of about 12,794 (266)
Ferrofluids as Thermal Ratchets [PDF]
Physical Review Letters, 2003 Colloidal suspensions of ferromagnetic nano-particles, so-called ferrofluids, are shown to be suitable systems to demonstrate and investigate thermal ratchet behavior: By rectifying thermal fluctuations, angular momentum is transferred to a resting ferrofluid from an oscillating magnetic field without net rotating component.
Engel, A +3 more
openaire +6 more sources
MagnetochemistryWe 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 +3 more sources
Wetting of ferrofluids: Phenomena and control [PDF]
Current Opinion in Colloid & Interface Science, 2018 Ferrofluids are liquids exhibiting remarkably strong response to magnetic fields, which leads to fascinating properties useful in various applications.
Mika Latikka +3 more
semanticscholar +2 more sources
Utilization of ferrofluids in coal preparation [PDF]
Acta Montanistica Slovaca, 1998 The contribution deals with the possibilities of ferrofluid application as a separation medium and a selective wetting agent with the aim of desulphurization and ash content decreasing of brown coal from Slovak deposits.
Turèániová ¼udmila +4 more
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Typical dampers and energy harvesters based on characteristics of ferrofluids
Friction, 2022 Ferrofluids are a type of nanometer-scale functional material with fluidity and superparamagnetism. They are composed of ferromagnetic particles, surfactants, and base liquids.
Yanwen Li +4 more
semanticscholar +1 more source
Anais da Academia Brasileira de Ciências, 2021 This study performs natural sand-based synthesis using the sonochemical route for preparing Zn-doped magnetite nanoparticles. The nanoparticles were dispersed in water as a carrier liquid to form Zn-doped magnetite aqueous ferrofluids.
AHMAD TAUFIQ +8 more
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Lubrication of sliding silicon MEMS devices using ferrofluids‐based magnetic matrix texture
Micro & Nano Letters, 2021 This paper aims to explore the possibility of using ferrofluids for the lubrication of MEMS devices under the influence of different magnetic field texture configurations. For the investigation of proposed work, a novel silicon‐based pin‐on‐disk friction
Liu Tonggang +3 more
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The effect of ions doping on the rheological properties of ferrite ferrofluids
Frontiers in Materials, 2023 A series of ferrite nanoparticles were synthesized via ion doping and then were coated by surfactant and dispersed in perfluorinated polyether oil (PFPE-oil), and the various ferrite ferrofluids were obtained. The scanning electron microscope was used to
Fang Chen +6 more
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Exploiting ferrofluidic wetting for miniature soft machines
Nature Communications, 2022 Ferrofluids with their extreme deformability are being used as soft machines. Using ferrofluids, Sun et al.
Mengmeng Sun +5 more
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Heliyon, 2020 Mn1-xZnxFe2O4 ferrofluids were produced from natural sand for magnetic sensors and radar absorbing materials. The X-ray diffraction data showed that the Zn partially substituted the Mn and Fe ions to construct a spinel structure.
Ahmad Taufiq +8 more
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