Glassy dynamics and flow properties of soft colloidal pastes.
The local dynamics and the nonlinear rheology of soft colloidal pastes are shown to exhibit a remarkable universal behavior in terms of a unique microscopic time scale. This variable is associated with structural relaxation under the combined action of local frictional forces and elastic driving forces. These results establish a link between the local dynamics of pastes and their nonlinear flow behavior and provide a unified description of paste rheology.
Cloitre
Michel
M
Laboratoire Matière Molle et Chimie, UMR 167, CNRS/ESPCI/ATOFINA, ESPCI, 10 rue Vauquelin, 75231 Paris Cedex, France.
Borrega
Régis
R
Monti
Fabrice
F
Leibler
Ludwik
L