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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 effect in hybrid fluids with liquid crystalline additives
Abstract
Conventional electrorheological (ER) fluids consist of electrically polarizable particles dispersed in an inert insulating liquid. They are characterized by a development of a yield stress upon application of an external electric field. They resemble Bingham fluids with yield stress value depending on electric field. A viscosity increase in the presence of an electric field has been also found in homogeneous solutions of liquid crystalline polymers with no yield stress observed. In this study these two types of fluids and combined dispersions of the solid particles in the liquid crystalline matrix were investigated. A lyotropic liquid crystalline polymer—poly(n-hexyl isocyanate) (PHIC)—dissolved in xylene was chosen as the active matrix. The dispersed solid phase was comprised of two kinds of polymers: pyrolyzed polyacrylonitryle (PAN) showing electron conductivity, and PAN doped with two salts (KSCN, NaSCN), resulting in ionic conductivity. The rheological measurements under an electric field were performed. The pristine xylene solution of PHIC was characterized first as well as the 15\% m/m dispersions of PAN powders in silicone oil. Then the dispersions in the liquid crystalline matrix were investigated showing a strong ER effect whose magnitude was considerably enhanced in comparison to both ER active components measured separately. Copyright © 2006 John Wiley \& Sons, Ltd.