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Density and Surface Tension of Liquid Ternary Ni-Cu-Fe Alloys

Brillo, Jürgen and Egry, Ivan and Matsushita, Taishi (2006) Density and Surface Tension of Liquid Ternary Ni-Cu-Fe Alloys. International Journal of Thermophysics, 27 (6). Springer Science + Business Media, Inc.. DOI: 10.1007/s10765-006-0121-7.

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Abstract

The density and surface tension of liquid Ni-Cu-Fe alloys have been measured over a wide temperature range, including the undercooled regime. A non-contact technique was used, consisting of an electromagnetic levitator equipped with facilities for optical densitometry and oscillating drop tensiometry. At temperatures above and below the liquidus point, the density and surface tension are linear functions of temperature. The concentration dependence of the density is significantly influenced by a third-order (ternary) parameter in the excess volume. The surface tensions are rather insensitive to substitution of the two transition metals Ni, Fe against each other and depend only on the copper concentration. By numerically solving the Butler equation, the surface tension of the ternary system can be derived from the thermodynamic potentials EG of the binary phases (Ni-Cu, Fe-Cu, Ni-Fe) alone.

Document Type:Article
Title:Density and Surface Tension of Liquid Ternary Ni-Cu-Fe Alloys
Authors:
AuthorsInstitution or Email of Authors
Brillo, JürgenUNSPECIFIED
Egry, IvanUNSPECIFIED
Matsushita, TaishiRoyal Institute of Technology, Department of Materials Science and Engineering, SE 100-44, Stockholm, Schweden
Date:4 November 2006
Journal or Publication Title:International Journal of Thermophysics
Volume:27
DOI:10.1007/s10765-006-0121-7
Publisher:Springer Science + Business Media, Inc.
Status:Published
Keywords:density; electromagnetic levitation; excess volume; liquid metals; nickel-copper-iron alloys; 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 > Institute of Space Simulation > Center for Solidification of Undercooled Melts (ZEUS)
Deposited By: Dr.rer.nat. Jürgen Brillo
Deposited On:20 Nov 2006
Last Modified:12 Dec 2013 20:21

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