Linear and nonlinear rheology of dense emulsions across the glass and the jamming regimes.
We discuss the linear and nonlinear rheology of concentrated microscale emulsions, amorphous disordered solids composed of repulsive and deformable soft colloidal spheres. Based on recent results from simulation and theory, we derive quantitative predictions for the dependences of the elastic shear modulus and the yield stress on the droplet volume fraction. The remarkable agreement with experiments we observe supports the scenario that the repulsive glass and the jammed state can be clearly identified in the rheology of soft spheres at finite temperature while crossing continuously from a liquid to a highly compressed yet disordered solid.
Physics Department and Fribourg Center for Nanomaterials, University of Fribourg, Chemin du Musée 3, 1700 Fribourg, Switzerland.
F
F
Scheffold
F
F
Cardinaux
T G
TG
Mason
D003198:Computer Simulation; D055119:Elastic Modulus; D004655:Emulsions / Q000737:chemistry; D005898:Glass / Q000737:chemistry*; D008956:Models, Chemical; D012212:Rheology / Q000379:methods*; D033081:Shear Strength
D004655:Emulsions