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Applied Physics Letters / Volume 97 / Issue 17 / STRUCTURAL, MECHANICAL, THERMODYNAMIC, AND OPTICAL PROPERTIES OF CONDENSED MATTER

Appl. Phys. Lett. 97, 171906 (2010); http://dx.doi.org/10.1063/1.3505523 (3 pages)

Thermocapillary-assisted pulling of thin films: Application to molten metals

Benoit Scheid1, Ernst A. van Nierop2, and Howard A. Stone3

1TIPs-Fluid Physics unit, Université Libre de Bruxelles, C.P. 165/67, 1050 Brussels, Belgium
2School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA
3Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, USA

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(Received 16 August 2010; accepted 5 October 2010; published online 27 October 2010)

We study the thermocapillary stabilization of a free liquid film as it is formed by being pulled out of a bath at constant speed. For sufficiently large stresses induced at the interface through a controlled temperature gradient, a continuous film of liquid can be processed. For negligible inertial effects, the film thickness only depends on the capillary length and on the strength of the surface tension variation. The theory suggests that very thin ribbons or foils of molten material can be drawn out of a melt over a wide range of thicknesses and at speeds relevant to manufacturing.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

capillarity, liquid films, surface tension

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3505523

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

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$abstract.society.value is a Member of CrossRef American Institute of Physics

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