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Surface tension measurements of industrial iron-based alloys from ground-based and parabolic flight experiments: Results from the Thermolab Project

Schmidt-Hohagen, Frank and Egry, Ivan and Wunderlich, Rainer and Fecht, Hans (2006) Surface tension measurements of industrial iron-based alloys from ground-based and parabolic flight experiments: Results from the Thermolab Project. Microgravity Science and Technology, XVIII (3-4), pp. 77-81. Z-Tec Publishing, Bremen. ISSN 0938-0108.

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Abstract

For measurements of the surface tension the oscillating drop technique is employed. With the help of digital image processing this method yields the frequencies of the surface oscillations from which the values of the surface tension can be derived. In the framework of ESA’s Thermolab project, the surface tensions of two representative steels: one low carbon steel, and one stainless steel, have been determined over a wide temperature range. The measurements were carried out in an earthbound levitation device, as well as during parabolic flights in the TEMPUS facility, taking advantage of the microgravity environment. The results obtained are compared and discussed in the framework of thermodynamic models.

Document Type:Article
Title:Surface tension measurements of industrial iron-based alloys from ground-based and parabolic flight experiments: Results from the Thermolab Project
Authors:
AuthorsInstitution or Email of Authors
Schmidt-Hohagen, FrankUNSPECIFIED
Egry, IvanUNSPECIFIED
Wunderlich, RainerMaterials Division / Ulm University / Germany
Fecht, HansMaterials Division / Ulm University / Germany
Date:2006
Journal or Publication Title:Microgravity Science and Technology
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:XVIII
Page Range:pp. 77-81
Editors:
EditorsEmail
Zell, M.UNSPECIFIED
Rath, H. J.UNSPECIFIED
Beysens, D.UNSPECIFIED
Cogoli-Greuter, M.UNSPECIFIED
Karapantsios, T.UNSPECIFIED
Publisher:Z-Tec Publishing, Bremen
ISSN:0938-0108
Status:Published
Keywords:Surface tension, electromagnetic levitation, oscillating drop technique, surface oscillations, Fast Fourier Transform, Rayleigh law, undercooling, parabolic flight experiments, TEMPUS facility
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 > Institute of Space Simulation > Center for Solidification of Undercooled Melts (ZEUS)
Deposited By: Frank Schmidt-Hohagen
Deposited On:08 Jan 2007
Last Modified:27 Apr 2009 13:23

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