A quasi two-dimensional bubble method for surface tension and contact angle measurements at the crystal-melt interface. I. Theoretical background

A method for simultaneous determination of the surface tension of liquids and of the contact angle between liquid and solid is proposed, in view of studying the wettability of a crystal by its own melt. The method is based on the shape of a gas bubble captured at the solid-liquid interface inside a...

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Bibliographic Details
Published in:Journal of crystal growth 1997-12, Vol.182 (1-2), p.198-204
Main Authors: Komunjer, L., Mutaftschiev, B.
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Contact angle
Cross-disciplinary physics: materials science
rheology
Crystal-melt interface
Exact sciences and technology
Growth from melts
zone melting and refining
Materials science
Methods of crystal growth
physics of crystal growth
Physics
Solid-fluid interfaces
Surface tension of liquids
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
Theory and models of crystal growth
physics of crystal growth, crystal morphology and orientation
Wetting
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Summary:A method for simultaneous determination of the surface tension of liquids and of the contact angle between liquid and solid is proposed, in view of studying the wettability of a crystal by its own melt. The method is based on the shape of a gas bubble captured at the solid-liquid interface inside a thin cell with plane-parallel walls. This quasi two-dimensional configuration simplifies the theoretical treatment of the bubble shape with respect to that in a three-dimensional space. It is stressed that contact angle is independent of dimensionality.
ISSN:0022-0248
1873-5002
DOI:10.1016/S0022-0248(97)00340-0