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Dielectrophoretic adhesion of 50-300µm sand and alumina particles under ambient atmospheric conditions

Dielectrophoretic adhesion of 50-300µm sand and alumina particles under ambient atmospheric conditions
Dielectrophoretic adhesion of 50-300µm sand and alumina particles under ambient atmospheric conditions
There are applications that require temporary adhesion of particles to a surface, including temporary printing where the "ink" is intended to be easily recovered and subsequently reused. One possible approach is through the use of dielectrophoretic force to attach coloured solid “ink” particles under the control of a voltage applied to an electrode pattern.

Dielectrophoretic theory predicts that dielectrophoretic force is proportional to particle volume. In the circumstance where this force opposes gravitational force, this makes the balance of forces on a particle insensitive to particle size. It thereby is possible to suspend surprisingly large particles using highly divergent surface fields produced by interdigitated electrodes at modest voltages.
Smallwood, J.M.
46ff6775-ce98-4cc8-a59f-b83af336439b
Praeger, M.
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Chippendale, R.D.
192d7845-80dd-4f92-979b-d13c1b870a62
Lewin, P.L.
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Smallwood, J.M.
46ff6775-ce98-4cc8-a59f-b83af336439b
Praeger, M.
84575f28-4530-4f89-9355-9c5b6acc6cac
Chippendale, R.D.
192d7845-80dd-4f92-979b-d13c1b870a62
Lewin, P.L.
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e

Smallwood, J.M., Praeger, M., Chippendale, R.D. and Lewin, P.L. (2014) Dielectrophoretic adhesion of 50-300µm sand and alumina particles under ambient atmospheric conditions. Institute of Physics Dielectrophoresis 2014, London, United Kingdom. 13 - 15 Jul 2014.

Record type: Conference or Workshop Item (Paper)

Abstract

There are applications that require temporary adhesion of particles to a surface, including temporary printing where the "ink" is intended to be easily recovered and subsequently reused. One possible approach is through the use of dielectrophoretic force to attach coloured solid “ink” particles under the control of a voltage applied to an electrode pattern.

Dielectrophoretic theory predicts that dielectrophoretic force is proportional to particle volume. In the circumstance where this force opposes gravitational force, this makes the balance of forces on a particle insensitive to particle size. It thereby is possible to suspend surprisingly large particles using highly divergent surface fields produced by interdigitated electrodes at modest voltages.

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Dielectrophoretic adhesion of 50-300um sand and aluminav3 (2).pdf - Author's Original
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More information

Published date: 14 July 2014
Venue - Dates: Institute of Physics Dielectrophoresis 2014, London, United Kingdom, 2014-07-13 - 2014-07-15
Organisations: EEE

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Local EPrints ID: 367461
URI: http://eprints.soton.ac.uk/id/eprint/367461
PURE UUID: 64451b29-797c-411c-9e43-57ac19e965c1

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Date deposited: 30 Jul 2014 13:33
Last modified: 10 Apr 2020 16:34

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Contributors

Author: J.M. Smallwood
Author: M. Praeger
Author: R.D. Chippendale
Author: P.L. Lewin

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