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Interfacial tension, wetting and nucleation in Al–Bi and Al–Pb monotectic alloys

Kaban, Ivan and Köhler, Markus and Ratke, Lorenz and Hoyer, Walter and Mattern, N and Eckert, Jürgen and Greer, Lindsay (2011) Interfacial tension, wetting and nucleation in Al–Bi and Al–Pb monotectic alloys. Acta Materialia, 59, pp. 6880-6889. Elsevier Ltd.. DOI: 10.1016/j.actamat.2011.07.031.

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Official URL: http://www.sciencedirect.com/science/article/pii/S1359645411005076


The key physical parameters for nucleation of a second liquid phase in Al–Bi and Al–Pb monotectic liquids have been measured. The density of coexisting liquid phases, the interfacial tension between them, and the contact angle of the liquid–liquid interface on ZrO2 and TiB2 ceramics have been determined as a function of temperature. The contact angle data suggest that Al2O3, ZrO2, and TiB2 particles can act as centres for heterogeneous nucleation of the minority liquid phase in Al–Pb and Al–Bi immiscible alloys. Casting experiments on the alloy Al91Pb9 (wt.%) show that the maximum size of the liquid phase droplets decreases, and their population increases, upon addition of inoculants.

Document Type:Article
Title:Interfacial tension, wetting and nucleation in Al–Bi and Al–Pb monotectic alloys
AuthorsInstitution or Email of Authors
Kaban, IvanIFW Dresden
Köhler, MarkusDLR
Ratke, LorenzDLR
Hoyer, WalterTU Chemnitz
Mattern, NIFW Dresden
Eckert, JürgenIFW Dresden
Greer, LindsayUniversity of Cambridge
Date:October 2011
Journal or Publication Title:Acta Materialia
Refereed publication:Yes
In Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 6880-6889
Publisher:Elsevier Ltd.
Keywords:Al–Bi; Al–Pb; Interfacial tension; Wetting; Nucleation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):R - Vorhaben Materialwissenschaftliche Forschung
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space
Deposited By: Prof. Lorenz Ratke
Deposited On:20 Sep 2011 13:15
Last Modified:26 Mar 2013 13:30

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