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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Krztoń-Maziopa, Anna
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (21/21 displayed)
- 2020Electrocrystallization of nanostructured iron-selenide films for potential application in dye sensitized solar cellscitations
- 2020Bismuth and oxygen valencies and superconducting state properties in Ba<inf>1-x</inf>K<inf>x</inf>BiO<inf>3</inf> superconductorcitations
- 2018Thermally induced structural transformations of linear coordination polymers based on aluminum tris(diorganophosphates)citations
- 2018Magnetic imaging of antiferromagnetic and superconducting phases in RbxFe2-ySe2 crystalscitations
- 2016Structural disorder in Lix(C5H5N)yFe2-zSe2 and CsxFe2-zSe2 superconductors studied by Mössbauer spectroscopycitations
- 2016Superconductivity in alkali metal intercalated iron selenidescitations
- 2014Compressibility and pressure-induced disorder in superconducting phase-separated Cs0.72Fe1.57Se2citations
- 2013Photoemission and muon spin relaxation spectroscopy of the iron-based Rb0.77Fe1.61Se2 superconductor: Crucial role of the cigar-shaped Fermi surfacecitations
- 2012Intrinsic crystal phase separation in the antiferromagnetic superconductor RbyFe2-xSe2: a diffraction studycitations
- 2012Single crystal growth of novel alkali metal intercalated iron chalcogenide superconductorscitations
- 2012ER suspensions of composite core-shell microspheres with improved sedimentation stabilitycitations
- 2011Room temperature antiferromagnetic order in superconducting XyFe2−xSe2 (X = Rb, K): a neutron powder diffraction studycitations
- 2011Synthesis and crystal growth of Cs 0.8 (FeSe 0.98 ) 2 : a new iron-based superconductor with T c = 27 Kcitations
- 2011Iron-vacancy superstructure and possible room temperature antiferromagnetic order in superconducting CsyFe2-xSe2citations
- 2011The synthesis, and crystal and magnetic structure of the iron selenide BaFe2Se3 with possible superconductivity at Tc = 11 Kcitations
- 2009Ionically conductive polymers for ER fluid preparation
- 2009Electrorheological fluids containing phosphorylated polystyrene-co-divinylbenzenecitations
- 2006Electrorheological effect in hybrid fluids with liquid crystalline additivescitations
- 2005Electrorheological fluids based on polymer electrolytescitations
- 2005Electrorheological fluids based on modified polyacrylonitrilecitations
- 2005Study of electrorheological properties of poly (p -phenylene) dispersionscitations
Places of action
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article
Electrorheological fluids based on polymer electrolytes
Abstract
The phenomenon of electrorheological activity taking part in so called electrorheological fluids (ERFs) relies on strong and reversible changes of fluid viscosity upon application of electric field and finds interesting technical applications. ERFs typically comprise dispersions of polarisable solid particles in liquid matrices. The paper describes studies on complexes of polyacrylonitrile with various salts of alkaline elements. The materials in a powder form were dispersed in silicone oil as well as in active matrices containing a liquid crystalline polymer. It was found that these novel systems were substantially anhydrous and electrorheologically active. The observed ER effect was relatively high and accompanied by very low current consumption. The magnitude of the ER effect was correlated with bulk ionic conductivity of the studied materials. The optimal bulk conductivity giving the highest ER effect at reasonably low currents amounted to about 10−5 S/cm. Higher conductivities resulted in higher currents only and saturation of the yield stress values. It was also shown that dispersions of the polymer complexes in a solution of poly(n-hexyl isocyanatye) in xylene manifested enhanced ER activity.