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Particle adhesion: interaction forces and mechanical effects: extrapolation to the nanometer-size range

Published online by Cambridge University Press:  10 February 2011

D. S. Rimai
Affiliation:
Office Imaging, Eastman Kodak Company, Rochester, NY 14653-6402
L. P. Demejo
Affiliation:
Office Imaging, Eastman Kodak Company, Rochester, NY 14653-6402
B. Gady
Affiliation:
Office Imaging, Eastman Kodak Company, Rochester, NY 14653-6402
D. J. Quesnel
Affiliation:
Office Imaging, Eastman Kodak Company, Rochester, NY 14653-6402
R. C. Bowen
Affiliation:
Johnson and Johnson Clinical Diagnostics, Rochester, NY 14650-2117
R. Reifenberger
Affiliation:
Department of Physics, Purdue University, West Lafayette, IN 47907
A. A. Busnaina
Affiliation:
Department of Mechanical Engineering, Clarkson University, Potsdam, NY 13699
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Abstract

The physics of particle adhesion is a complex subject and depends on the interaction mechanisms and the mechanical properties of the contacting materials. These interactions, which tend to be caused by van der Waals and electrostatic interactions, generate stresses that, in turn, result in deformations of the contacting materials. Most of today's understanding of particle adhesion is based on theories that assume that the adhesion-induced strains are small. However, for small particles, the strains can be quite large, resulting in yielding and plastic deformations. In some instances, the entire particle can become engulfed by the substrate. This paper discusses the nature of the deformations, as are presently known, and extrapolates today's understanding of particle adhesion, which is based on the micrometer-size scale, to nanometer-size particles.

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