Observations of the Collapse of Dilute Lyotropic Lamellar Phases under Shear Flow

A. Al kahwaji and H. Kellay
Phys. Rev. Lett. 84, 3073 – Published 3 April 2000
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Abstract

Experimental evidence of the collapse of dilute lamellar phases due to shear flow is presented. Two systems are used: one composed of brine and an ionic surfactant, and another composed of water, a nonionic surfactant, and cosurfactant. We observe this transition for a range of lamellar spacings and brine salinity. The results are in reasonable agreement with recent theory in which the suppression of fluctuations by shear plays an important role.

  • Received 8 July 1999

DOI:https://doi.org/10.1103/PhysRevLett.84.3073

©2000 American Physical Society

Authors & Affiliations

A. Al kahwaji and H. Kellay

  • Centre de Physique Moléculaire Optique et Hertzienne, U. Bordeaux I, 351 cours de la Libération, 33405 Talence, France

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Vol. 84, Iss. 14 — 3 April 2000

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