Interpenetration of fractal clusters drives elasticity in colloidal gels formed upon flow cessation.
Sign Up to like & getrecommendations! Published in 2022 at "Soft matter"
DOI: 10.1039/d2sm00481j
Abstract: Colloidal gels are out-of-equilibrium soft solids composed of attractive Brownian particles that form a space-spanning network at low volume fractions. The elastic properties of these systems result from the network microstructure, which is very sensitive… read more here.
Keywords: elasticity; flow cessation; colloidal gels; interpenetration ... See more keywords
Shear banding as a cause of nonmonotonic stress relaxation after flow cessation
Sign Up to like & getrecommendations! Published in 2025 at "Physical Review Materials"
DOI: 10.1103/physrevmaterials.9.l022601
Abstract: Recent flow cessation experiments on soft materials have shown a counterintuitive nonmonotonic relaxation of the shear stress: following the switch off of a steady imposed shear flow, the stress initially decays before later increasing again.… read more here.
Keywords: flow cessation; stress; shear banding; relaxation ... See more keywords