Abstract
A stability theory is presented which describes the conditions under which thin films rupture. It is found that holes in the film will either grow or shrink, depending on whether their initial radius is larger or smaller than a critical value. If the holes grow large enough, they impinge to form islands; the size of which are determined by the surface energies. The formation of grooves where the grain boundary meets the free surface is a potential source of holes which can lead to film rupture. Equilibrium grain boundary groove depths are calculated for finite grain sizes. Comparison of groove depth and film thickness yields microstructural conditions for film rupture. In addition, pits which form at grain boundary vertices, where three grains meet, are another source of film instability.
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Dates
Type | When |
---|---|
Created | 23 years ago (July 26, 2002, 9:05 a.m.) |
Deposited | 1 year, 6 months ago (Feb. 4, 2024, 12:14 a.m.) |
Indexed | 2 days, 4 hours ago (Aug. 21, 2025, 12:47 p.m.) |
Issued | 39 years, 1 month ago (July 1, 1986) |
Published | 39 years, 1 month ago (July 1, 1986) |
Published Print | 39 years, 1 month ago (July 1, 1986) |
@article{Srolovitz_1986, title={Capillary instabilities in thin films. I. Energetics}, volume={60}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.337689}, DOI={10.1063/1.337689}, number={1}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Srolovitz, D. J. and Safran, S. A.}, year={1986}, month=jul, pages={247–254} }