Amplitude scaling of a static wrinkle at an oil-air interface created by dielectrophoresis forces

Brown, Carl, Al-Shabib, Wamid, Wells, Gary, McHale, Glen and Newton, Michael (2010) Amplitude scaling of a static wrinkle at an oil-air interface created by dielectrophoresis forces. Applied Physics Letters, 97 (24). p. 242904. ISSN 0003-6951

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Abstract

Dielectrophoresis forces have been used to create a static periodic wrinkle with a sinusoidal morphology on the surface of a thin layer of 1-decanol oil. The surface deformation occurs when a voltage V is applied between adjacent coplanar strip electrodes in an interdigitated array onto which the oil film is coated. It has been shown experimentally that the peak-to-peak amplitude A of the wrinkle scales according to the functional form A∝V2 exp(-α/p) for a range of oil film thicknesses (between 15 and 50 μm) and wrinkle pitches p (160, 240, and 320 μm).

Item Type:	Article
Uncontrolled Keywords:	deformation, electrophoresis, interface phenomena, liquid films, oils, surface morphology
Subjects:	F200 Materials Science
Department:	Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User:	Ay Okpokam
Date Deposited:	31 Jan 2012 16:53
Last Modified:	12 Oct 2019 19:06
URI:	http://nrl.northumbria.ac.uk/id/eprint/5175

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