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@ARTICLE{Barab:875369,
author = {Barabé, Blandine and Abakumov, S. and Gunes, D. Z. and
Lettinga, M. P.},
title = {{S}edimentation of large particles in a suspension of
colloidal rods},
journal = {Physics of fluids},
volume = {32},
number = {5},
issn = {1089-7666},
address = {[S.l.]},
publisher = {American Institute of Physics},
reportid = {FZJ-2020-01987},
pages = {053105 -},
year = {2020},
abstract = {The sedimentation at low Reynolds numbers of large,
non-interacting spherical inclusions in networks of model
monodisperse, slender colloidal rods is investigated. The
influence of rod concentration, rod length, and inclusion
stress on the inclusion’s creeping motion is investigated.
The decrease in sedimentation speeds as a function of rod
concentration is compared to the Stokes law, using the
zero-shear viscosity from the Doi–Edwards theory for
semi-dilute colloidal rod solutions. The experimental speeds
display the same concentration dependence as the zero-shear
viscosity and are, thus, strongly dependent on the rod
length. The speed is, however, a fraction of 2 and 4 lower
than expected for rods of 0.88 μm and 2.1 μm,
respectively. The results for both rod lengths superimpose
when plotted against the overlap concentration, hinting at
an extra dependence on the entanglement.},
cin = {IBI-4},
ddc = {530},
cid = {I:(DE-Juel1)IBI-4-20200312},
pnm = {551 - Functional Macromolecules and Complexes (POF3-551)},
pid = {G:(DE-HGF)POF3-551},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000536193000002},
doi = {10.1063/5.0006076},
url = {https://juser.fz-juelich.de/record/875369},
}