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Relation between self-diffusion and viscosity in dense liquids: New experimental results from electrostatic levitation

Brillo, Jürgen and Pommrich, Anja Ines and Meyer, Andreas (2011) Relation between self-diffusion and viscosity in dense liquids: New experimental results from electrostatic levitation. Physical Review Letters, 107, 165902-1-165902-4. American Physical Society. DOI: 10.1103/PhysRevLett.107.165902.

Full text not available from this repository.

Official URL: http://link.aps.org/doi/10.1103/PhysRevLett.107.165902

Abstract

By using the technique of electrostatic levitation, the Ni self-diffusion, density, and viscosity of liquid Zr64Ni36 have been measured in situ with high precision and accuracy. The inverse of the viscosity, η, measured via the oscillating drop technique, and the self-diffusion coefficient D, obtained from quasielastic neutron scattering experiments, exhibit the same temperature dependence over 1.5 orders of magnitude and in a broad temperature range spanning more than 800 K. It was found that Dη=const for the entire temperature range, contradicting the Stokes-Einstein relation.

Document Type:Article
Additional Information:siehe auch http://physics.aps.org/viewpoint-for/10.1103/PhysRevLett.107.165902
Title:Relation between self-diffusion and viscosity in dense liquids: New experimental results from electrostatic levitation
Authors:
AuthorsInstitution or Email of Authors
Brillo, Jürgenjuergen.brillo@dlr.de
Pommrich, Anja Inesinespommrich@gmx.de
Meyer, Andreasandreas.Meyer@dlr.de
Date:14 October 2011
Journal or Publication Title:Physical Review Letters
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:107
DOI:10.1103/PhysRevLett.107.165902
Page Range:165902-1-165902-4
Publisher:American Physical Society
Status:Published
Keywords:electrostatic levitation diffusion Stokes-Einstein relation viscosity
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W FR - Forschung unter Weltraumbedingungen (old)
DLR - Research area:Space
DLR - Program:W FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):W - Vorhaben Materialforschung unter Mikro-g (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space
Deposited By: Dr.rer.nat. Jürgen Brillo
Deposited On:17 Oct 2011 10:37
Last Modified:20 Mar 2013 19:44

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