Electromechanics of Particles

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Cambridge University Press, Sep 8, 2005 - Science - 265 pages
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The focus of this book is on the interactions of small particles, in the size range of microns to millimeters, with electric or magnetic fields. This field has particularly useful practical applications, for instance in photocopier technology and lately in the characterization and manipulation of cells and DNA molecules. The author's objective is to bring together diverse examples of field-particle interactions from many areas of science and technology and then to provide a framework for understanding their common electromechanical phenomena. Using examples from dielectrophoresis, magnetic brush xerography, electrorheology, cell electrorotation, and particle chain rotation, Professor Jones introduces a general model--the effective dipole method--to build a set of predictive models for the forces and torques responsible for the important electromechanical effects. In the last part of the book, the author covers the ubiquitous phenomenon of particle chaining. This book will be highly useful to material engineers and scientists, chemists, and biologists who work with particles, powders, or granular materials.
 

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Contents

1 Introduction
1
2 Fundamentals
5
3 Dielectrophoresis and magnetophoresis
34
4 Particle rotation
83
5 Orientation of nonspherical particles
110
6 Theory of particle chains
139
7 Force interactions between particles
181
Analogies between electrostatic conduction and magnetostatic problems
218
Models for layered spherical particles
227
Transient response ofohmic dielectric sphere to a suddenly applied DC electric field
236
Relationship of DEP and ROT spectra
238
General multipolar theory
248
Induced effective moment of dielectric ellipsoid
251
References
253
Index
263
Copyright

Review of linear multipoles
222

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