Shear-driven solidification of dilute colloidal suspensions
  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. 
Alessio Zaccone, Daniele Gentili, Hua Wu, Massimo Morbidelli, and   Emanuela Del Gado
cond-mat.soft