The rupture of a single liquid aluminium alloy film
The present study is based on the idea of understanding the rupture of films in metal foams by studying free standing metallic films as a model system. Liquid dynamics, the velocity of the rupturing material as well as the behaviour of ceramic particles inside the melt were analysed optically ex sit...
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Published in | Soft matter Vol. 1; no. 26; pp. 4711 - 4716 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
England
14.07.2014
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Subjects | |
Online Access | Get full text |
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Summary: | The present study is based on the idea of understanding the rupture of films in metal foams by studying free standing metallic films as a model system. Liquid dynamics, the velocity of the rupturing material as well as the behaviour of ceramic particles inside the melt were analysed optically
ex situ
and by synchrotron X-ray radiography
in situ
. It was found that the resistance of films to rupture is mainly based on the interaction between solid particles and an immobile oxide skin, the formation of which depends on the oxygen content of the surrounding atmosphere and the presence of magnesium.
Synchrotron X-ray radiograms showing three stages of the rupture of an AlSi9/TiB2/6p film pulled in air. White circles indicate a fixed particle cluster, and red circles indicate the free moveable ones. The solid black contour line at
t
= 0 ms marks the origin of rupture. The dotted black lines at
t
+ 25 ms and
t
+ 302 ms mark the edge of the expanding gap in the film. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1744-683X 1744-6848 |
DOI: | 10.1039/c4sm00487f |