title: Observations of the collapse of dilute lyotropic lamellar phases under shear flow
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.
authors.affiliation: Centre de Physique Moleculaire Optique et Hertzienne, U. Bordeaux I, 351 cours de la Liberation, 33405 Talence, France.
authors.lastname: Al Kahwaji A
authors.initials: H
authors.lastname: Kellay