Shear-driven solidification of dilute colloidal suspensions
Soft Condensed Matter
2015-05-27 v1
Abstract
We show that the shear-induced solidification of dilute charge-stabilized (DLVO) colloids is due to the interplay between the shear-induced formation and breakage of large non-Brownian clusters. While their size is limited by breakage, their number density increases with the shearing-time. Upon flow cessation, the dense packing of clusters interconnects into a rigid state by means of grainy bonds, each involving a large number of primary colloidal bonds. The emerging picture of shear-driven solidification in dilute colloidal suspensions combines the gelation of Brownian systems with the jamming of athermal systems.
Keywords
Cite
@article{arxiv.1103.1865,
title = {Shear-driven solidification of dilute colloidal suspensions},
author = {Alessio Zaccone and Daniele Gentili and Hua Wu and Massimo Morbidelli and Emanuela Del Gado},
journal= {arXiv preprint arXiv:1103.1865},
year = {2015}
}