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Main Title: Analysis of liquid metal foams through X-ray radioscopy and microgravity experiments
Author(s): Garcia-Moreno, F.
Tobin, S. T.
Mukherjee, M.
Jimenez, C.
Solorzano, E.
Kumar, G. S. Vinod
Hutzler, S.
Banhart, J.
Type: Article
Language Code: en
Abstract: Complex liquid structures such as metallic foams were produced in a furnace that allowed in situ X-ray monitoring of the evolution of the structure and distribution of the liquid in the foam. The experiments were carried out during parabolic flights which provided varying levels of gravity. The evolution of the characteristic liquid fraction profiles due to gravity induced drainage was measured and analysed in terms of the foam drainage equation, obtaining viscosity and surface tension by fitting solutions of the equation to the experimental data. The surface tension of the melt in the foam was decreased up to 40%. Effective viscosities of up to 139 times the viscosity of a pure bulk melt were observed. These effects could be attributed to the smaller influence of solid particles dispersed in the melt and the larger influence of the complex foam structure.
Issue Date: 2014
Date Available: 22-Jun-2016
DDC Class: 530 Physik
Journal Title: Soft matter
Publisher: Royal Society of Chemistry
Publisher Place: Cambridge
Volume: 10
Issue: 36
Publisher DOI: 10.1039/c4sm00467a
Page Start: 6955
Page End: 6962
EISSN: 1744-6848
ISSN: 1744-683X
Notes: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
Appears in Collections:Fak. 3 Prozesswissenschaften » Publications

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