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Surface tension of liquid Al-Cu-Ag ternary alloys

Brillo, Jürgen and Plevachuk, Yuriy and Egry, Ivan (2010) Surface tension of liquid Al-Cu-Ag ternary alloys. Journal of Materials Science, 45, pp. 5150-5157. Springer.

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Abstract

Surface tension data of liquid Al-Cu-Ag ternary alloys have been measured contactlessly using the technique of electromagnetic levitation. A digital CMOS-camera (400 fps) recorded image sequences of the oscillating liquid sample and the surface tension was determined from an analysis of the frequency spectra. Data were obtained at temperatures above the melting point. Samples covered a broad range of compositions. In all cases, the surface tensions could be described as linear functions of temperature with a negative slope. The data were compared to thermodynamic model calculations using the ideal- and subregular solution approximation. It was found that, apart from samples where the composition is close to one of the binary margin phases, the surface tensions of the ternary alloys can be described by the ideal solution model.

Document Type:Article
Title:Surface tension of liquid Al-Cu-Ag ternary alloys
Authors:
AuthorsInstitution or Email of Authors
Brillo, Jürgenjuergen.brillo@dlr.de
Plevachuk, Yuriyplevachuk@mail.lviv.ua
Egry, Ivanivan.egry@dlr.de
Date:2010
Journal or Publication Title:Journal of Materials Science
Refereed publication:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:45
Page Range:pp. 5150-5157
Publisher:Springer
Status:Published
Keywords:Al–Cu-Ag liquid ternary alloys; Butler equation; Ideal solution; Segregation; Regular solution; Surface tension
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:19 Aug 2010 08:01
Last Modified:04 Apr 2013 16:23

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