title: Coexistence of liquid and solid phases in flowing soft-glassy materials.
abstract: Magnetic-resonance-imaging rheometrical experiments show that concentrated suspensions or emulsions cannot flow steadily at a uniform rate smaller than a critical value (gamma(c)). As a result, a "liquid" region (sheared rapidly, i.e., at a rate larger than gamma(c)) and a "solid" region (static) coexist. The behavior of the fluid in the liquid region follows a simple power-law model, while the extent of the solid region increases with the degree of jamming of the material.
authors.affiliation: LMSGC, 2 Allée Kepler, 77420 Champs sur Marne, France. philippe.coussot@lcpc.fr
authors.forename: P
authors.initials: P
authors.lastname: Coussot
authors.forename: J S
authors.initials: JS
authors.lastname: Raynaud
authors.forename: F
authors.initials: F
authors.lastname: Bertrand
authors.forename: P
authors.initials: P
authors.lastname: Moucheront
authors.forename: J P
authors.initials: JP
authors.lastname: Guilbaud
authors.forename: H T
authors.initials: HT
authors.lastname: Huynh
authors.forename: S
authors.initials: S
authors.lastname: Jarny
authors.forename: D
authors.initials: D
authors.lastname: Lesueur