Shear Thickening in Concentrated Soft Sphere Colloidal Suspensions: A Shear Induced Phase Transition

Figure 4

Experimental critical stresses: a function of the volume fraction of the sample HS600 (squares) investigated by Maranzano and Wagner [38]. The solid line indicates the critical stress obtained from the activation model for a constant charge interaction potential and the dotted line with constant potential applying the experimental data  nm, , ,  J,  As, ,  F/m, ,  K,  J, , and  Pas. Also displayed are the empirical critical shear rates at the onset of shear thickening (diamonds) of the same sample. The dashed line indicates a fit of (16).