The fluid profile during spin-coating over a small sinusoidal topography

M. A. Hayes and S. B. G. O'Brien

International Journal of Mathematics and Mathematical Sciences, 2004, vol. 2004, 1-20

Abstract:

We consider spin-coating over a small sinusoidal topography modelling the physical problem of the coating of a television screen. This involves depositing a phosphor layer on a substrate with a precoating consisting of small parallel striations. Despite the fact that the basic flow is radial, we show that the final liquid coating does not have radial variation; rather, it varies according to the underlying topography. We use a thin film model resulting in an evolution equation for the fluid thickness and sketch several techniques for obtaining approximate solutions in appropriate limiting situations.

Date: 2004
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jijmms:494359

DOI: 10.1155/S0161171204308136

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