Volume 55, Number 6, September II 2001
|Page(s)||880 - 886|
|Section||Interdisciplinary physics and related areas of science and technology|
|Published online||01 December 2003|
Closed compact Taylor's droplets in a phase-separated lamellar-sponge mixture under shear flow
Centre de Physique Moléculaire Optique et
Hertzienne, UMR 5792 Université Bordeaux I - 351 Cours de la
Libération, Talence 33400, France
Corresponding author: email@example.com
Accepted: 28 June 2001
We have studied by optical microscopy, small-angle light scattering, and rheology, the behavior under shear flow of a phase-separated lamellar-sponge ternary mixture. We observe in the -rich region the existence of a Newtonian assembly made of closed compact monodisperse lamellar droplets immersed in the sponge phase. Contrary to the classical onion glassy texture obtained upon shearing phases, the droplet size scales herein as , the inverse of the shear rate. This result is in good agreement with Taylor's picture. Above a critical shear rate, , the droplets organize to form a single colloidal crystal whose lattice size varies as . To the memory of Tess Melissa P.
PACS: 82.70.-y – Disperse systems; complex fluids / 83.10.Tv – Structural and phase changes / 83.80.Hj – Suspensions, dispersions, pastes, slurries, colloids
© EDP Sciences, 2001
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