Results 251 to 260 of about 671,805 (294)

Bulk and interfacial properties of polar fluids

Berichte der Bunsengesellschaft für physikalische Chemie, 1994
AbstractBased on a suitable density functional theory for inhomogeneous fluids we investigate both the bulk phase diagram and interfacial structures of polar fluids in general and of Stockmayer fluids in particular. We derive a scheme which allows us to analyze one‐component fluids composed of molecules with strong permanent dipole moments which are ...
Frodl, P., Groh, B., Dietrich, S.
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The Interfacial Polarization-Induced Electrorheological Effect

Journal of Colloid and Interface Science, 1998
The Wagner theory, which describes the interfacial polarization in heterogeneous systems, was employed to model the electrorheological (ER) effect under the presumption that the shear stress increment is induced by the interfacial polarization. The currently observed experimental facts, such as the yield stress of some ER fluids, decreases with the ...
exaly   +3 more sources

Interfacial tension of polar mixtures

Transactions of the Faraday Society, 1967
A statistical model is developed to represent the adsorption of a soluble surface active material at an oil/water interface. The lowering of interfacial tension associated with this lattice gas representation is compared with predictions based on a regular solution theory and with experiment.
James T. O'Toole, Lawrence H. Shendalman
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Bulk and interfacial properties of polar and molecular fluids

Physical Review A, 1992
Based on a suitable density-functional theory for inhomogeneous fluids we investigate both the liquid-vapor coexistence curve of the bulk phase diagram and interfacial structures of molecular fluids in general and Stockmayer fluids in particular. We derive a scheme which allows us to analyze one-component fluids composed of molecules with strong ...
Frodl, P., Dietrich, S.
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Polarity-dependence of the nonlinear dielectric response in interfacial water

The Journal of Chemical Physics, 2023
Molecular dynamics simulations are used to study the nonlinear dielectric responses of a confined aqueous film in a planar nanopore under perpendicular electric fields at varied voltages between confining graphene sheets. Dielectric saturation reminiscent of the bulk phase behavior is prevalent at very strong fields, whereas we observe a nonmonotonic ...
N. Mulpuri, D. Bratko
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Interfacial polarization phenomena in organic molecular films

Analytica Chimica Acta, 2006
Electrostatic phenomena occurring at the interface between metal/organic and organic/organic materials are discussed from the viewpoint of dielectrics physics. Focusing on two important origins of surface polarization phenomena, orientational ordering of polar molecules and displacement of excess charges at the interface, surface polarization phenomena
Mitsumasa Iwamoto, Takaaki Manaka
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Analytic approach to the interfacial polarization of heterogeneous systems

Physical Review B, 1993
We have obtained an analytical solution of Maxwell's equations for a dielectric system of spherical particles in a medium. The system is placed between two parallel electrode plates, subject to a low-frequency alternating potential, and the solution is obtained from the corresponding boundary-value problem for the Green function.
, Fu, , Macedo, , Resca
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Electrode Polarization vs. Maxwell-Wagner-Sillars Interfacial Polarization in Dielectric Spectra of Materials: Characteristic Frequencies and Scaling Laws

Journal of Chemical Physics, 2015
International audienceThe characteristic frequencies of electrode polarization and of interfacial polarization effects in dielectric spectra of ionic liquids and of polymer bi-layers are determined and systematically analyzed, based on dielectric ...
Anatoli Serghei, G Seytre
exaly   +2 more sources

The Role of Interfacial Polarization in the Electrorheological Effects

International Journal of Modern Physics B, 1999
The conductive, dielectric and surface properties of severl water-free polymer or inorganic material based ER fluids, as well as their response times, are investigated to elucidate the physical ground of the electrorheological effect. It is found that the slow polarization, especially the interfacial polarization rather than the Debye polarization ...
Tian Hao, Akiko Kawai, Fumikazu Ikazaki
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Interfacial Polarization in Single-Crystal NaCl

Journal of Applied Physics, 1966
Capacitance and conductance dispersions and a dissipation factor maximum were observed in single-crystal NaCl specimens at temperatures between 300° and 400°C. Probe measurements of the potential profile across these specimens in a dc field revealed the presence of a large potential drop in a very thin region adjacent to each electrode comparable in ...
J. M. Wimmer, N. M. Tallan
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