Published online by Cambridge University Press: 05 December 2011
This chapter introduces some advanced methods of colloid rheology that focus primarily on determining fundamental properties of colloidal systems and, in some cases, on creating new colloidally based materials and devices. The advanced rheological techniques included here are stress jumps and superposition rheometry. Furthermore, microrheological techniques are introduced by Eric Furst (University of Delaware), whereby probes can be used to interrogate materials at the colloidal level. Such methods open up a rich field of investigation for testing colloidal micromechanics, as well as creating new colloid-based devices.
The second part of this chapter provides a first look into the expansive field of electrorheological and magnetorheological fluids, whereby a second applied field (electrical or magnetic) is used simultaneously with a flow field to create useful devices from suspensions. Finally, a brief introduction to colloids at interfaces is provided by Jan Vermant (Katholieke Universiteit Leuven), in which colloidal forces specific to surfaces lead to new and useful colloidal structures, which are being probed by novel surface rheological methods. These vignettes provide an introduction to a rich and rapidly evolving literature within the context of colloid rheology as presented in this monograph.
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