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.
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Praeger, M.
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Chippendale, R.D.
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Lewin, P.L.
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
14 July 2014
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.
14 - 16 Jul 2014.
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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.
Text
Dielectrophoretic adhesion of 50-300um sand and aluminav3 (2).pdf
- Author's Original
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Published date: 14 July 2014
Venue - Dates:
Institute of Physics Dielectrophoresis 2014, London, United Kingdom, 2014-07-14 - 2014-07-16
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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: 15 Mar 2024 03:32
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Contributors
Author:
J.M. Smallwood
Author:
M. Praeger
Author:
R.D. Chippendale
Author:
P.L. Lewin
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