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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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.
|Title:||Surface tension measurements of industrial iron-based alloys from ground-based and parabolic flight experiments: Results from the Thermolab Project|
|Journal or Publication Title:||Microgravity Science and Technology|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 77-81|
|Publisher:||Z-Tec Publishing, Bremen|
|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|
|HGF - Program:||Space|
|HGF - Program Themes:||W FR - Forschung unter Weltraumbedingungen|
|DLR - Research area:||Space|
|DLR - Program:||W FR - Forschung unter Weltraumbedingungen|
|DLR - Research theme (Project):||W - Vorhaben Materialforschung unter Mikro-g (old)|
|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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