2004/02/09 by L. Becu, Lydiane Bécu, Sébastien Manneville +3 · 6 citations
Chemistry · Materials Science · Physics and Astronomy · #Material Dynamics and Properties #Spectroscopy and Quantum Chemical Studies #Surfactants and Colloidal Systems #cond-mat.soft
paper · pdf · doi:10.1103/physrevlett.93.018301
published as Phys. Rev. Lett., vol. 93, 018301 (2004) · 4 pages, 5 figures, submitted to Phys.Rev.Lett
arxiv created 2004/02/09 · openalex publication_date 2004/06/28 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Velocity profiles in a wormlike micelle solution (cetyl trimethyl ammonium bromide in D2O) are recorded using ultrasound every 2 s during a startup experiment into the shear-banding regime. The stress relaxation occurs over more than 6 h and corresponds to the very slow nucleation and growth of the high-shear band. Moreover, oscillations of the interface position with a period of about 50 s are observed during the growth process. Strong wall slip, metastable states, and transient nucleation of three-band flows are also reported and discussed in light of previous experiments and theoretical models.