Sat, 19 Jul 2008 03:07:16 BST CiteULike: dchen's Anderson http://www.citeulike.org/user/dchen/author/Anderson CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/dchen/article/2883842 <i>Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), Vol. 75, No. 1. (2007)</i><br /><br />Jamming and force networks observed in electrorheological (ER) fluids bear many similarities to those observed in various granular and colloidal systems. We have measured the time evolution (transient stresses) of filamentous networks of colloidal particles in suspensions subjected to continuous tensile strain concomitant with the switching on and off of electric fields. The density of particle chains was found to increase exponentially with the applied tensile strain via a rapid formation of single chains followed by a slower coarsening (aggregation) of the chains. The two processes can be ascribed to the field-induced short-range and long-range interparticle forces, respectively, along with the tensile viscous force. Transient filamentous network structure of a colloidal suspension excited by stepwise electric fields Yu Tian Hongbo Zeng Travers Anderson Boxin Zhao Patricia Mcguiggan Jacob Israelachvili doi:10.1103/PhysRevE.75.011409 Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), Vol. 75, No. 1. (2007) 2008-06-11T21:18:17-00:00 2007 Physical Review E (Statistical, Nonlinear, and Soft Matter Physics) 75 1 APS 2007 colloids control electric field people pre shear http://www.citeulike.org/user/dchen/article/2754674 <i>Physical Review, Vol. 43, No. 6. (15 March 1933), 491.</i> The Positive Electron Carl Anderson doi:10.1103/PhysRev.43.491 Physical Review, Vol. 43, No. 6. (15 March 1933), 491. 2008-05-04T23:52:49-00:00 1933 Physical Review 43 6 491 American Physical Society 2006 classic focus nobel http://www.citeulike.org/user/dchen/article/765133 <i>Nature, Vol. 416, No. 6883. (25 April 2002), pp. 811-815.</i><br /><br />Colloids display intriguing transitions between gas, liquid, solid and liquid crystalline phases. Such phase transitions are ubiquitous in nature and have been studied for decades. However, the predictions of phase diagrams are not always realized; systems often become undercooled, supersaturated, or trapped in gel-like states. In many cases the end products strongly depend on the starting position in the phase diagram and discrepancies between predictions and actual observations are due to the intricacies of the dynamics of phase transitions. Colloid science aims to understand the underlying mechanisms of these transitions. Important advances have been made, for example, with new imaging techniques that allow direct observation of individual colloidal particles undergoing phase transitions, revealing some of the secrets of the complex pathways involved. Insights into phase transition kinetics from colloid science Valerie Anderson Henk Lekkerkerker doi:10.1038/416811a Nature, Vol. 416, No. 6883. (25 April 2002), pp. 811-815. 2006-07-19T21:09:52-00:00 2002 Nature 416 6883 811 815 classic colloids depletion nature phase review