Theory of nonlinear rheology and yielding of dense colloidal suspensions

Details Theory of nonlinear rheology and yielding of dense colloidal suspensions Theory of nonlinear rheology and yielding of dense colloidal suspensions

2002-04-30

arxiv.org/abs/cond-mat/0204628v4

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 2 figures; slightly corrected version; Phys. Rev. Lett., to be published (2002)

Scientific paper

10.1103/PhysRevLett.89.248304

A first principles approach to the nonlinear flow of dense suspensions is
presented which captures shear thinning of colloidal fluids and dynamical
yielding of colloidal glasses. The advection of density fluctuations plays a
central role, suppressing the caging of particles and speeding up structural
relaxation. A mode coupling approach is developed to explore these effects.

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