On the rate of thinning of thin liquid films on a rotating disk
- 15 August 1988
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 64 (4) , 2232-2233
- https://doi.org/10.1063/1.341692
Abstract
Thin liquid films are often used to coat rotating magnetic recording disks so as to enhance their durability. These rotating films are subject to inertial and wind shear forces that induce radial motion thereby thinning them. An experiment is discussed here to study the relative importance of inertial forces and wind shear. For a 28-nm-thick layer of perfluoropolyether, air shear dominates inertial effects. Furthermore, the thinning of these films without wind shear does not deviate from the classical models of nearly parallel, slow viscous flow using the bulk viscosity and no slip.This publication has 4 references indexed in Scilit:
- The effect of induced air-flow on the spin coating of viscous liquidsJournal of Applied Physics, 1987
- Slip effect for thin liquid film on a rotating diskJournal of Applied Physics, 1987
- Flow of a Viscous Liquid on a Rotating DiskJournal of Applied Physics, 1958
- The flow due to a rotating discMathematical Proceedings of the Cambridge Philosophical Society, 1934