Volume 83, Number 2, July 2008
|Number of page(s)||5|
|Section||Interdisciplinary Physics and Related Areas of Science and Technology|
|Published online||03 July 2008|
Shear oscillation light scattering of droplet deformation and reconfiguration in concentrated emulsions
Department of Physics and Astronomy, University California-Los Angeles - Los Angeles, CA 90095, USA
2 Department of Chemistry and Biochemistry, University of California-Los Angeles - Los Angeles, CA 90095, USA
3 California NanoSystems Institute, University of California-Los Angeles - Los Angeles, CA 90095, USA
Corresponding author: firstname.lastname@example.org
Accepted: 30 May 2008
Large strain-amplitude oscillatory shear flows can cause significant structural changes in concentrated suspensions of deformable colloidal spheres that have volume fractions exceeding the quiescent jamming limit of hard solid spheres. In contrast to hard spheres, which can jam, lock-up, and even break fixed-gap shearing devices, droplets can readily deform and remain lubricated. By introducing shear oscillation light scattering, we explore how shear-induced droplet deformation facilitates un-jamming, ordering, disordering, and re-jamming of uniform concentrated droplets as a function of the amplitude, frequency, and phase of an applied oscillatory shear.
PACS: 82.70.Kj – Emulsions and suspensions / 83.60.Rs – Shear rate-dependent structure (shear thinning and shear thickening) / 83.80.Iz – Emulsions and foams
© EPLA, 2008
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.