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@INPROCEEDINGS{Lang:824635,
      author       = {Lang, Christian and Lettinga, M. P.},
      title        = {{T}he {C}onnection between {B}iaxial {O}rientation and
                      {S}hear {T}hinning for quasi ideal {R}ods},
      reportid     = {FZJ-2016-07198},
      year         = {2016},
      abstract     = {We use rheo-SANS measurements to determine the response of
                      isotropic fd-virus suspensions to steady state shear flow.
                      The complete orientational order parameter tensor is
                      obtained as a function of shear rate by resolving the
                      orientational ordering of the quasi-ideal rods in the two
                      relevant scattering planes, the flow-gradient and the
                      flow-vorticity plane.Microscopic ordering can be identified
                      as the origin of the observed shear thinning. We obtain a
                      master curve for different concentrations taking into
                      account the appearent collective rotational diffusion
                      coefficient. However, we need to do a scaling of the zero
                      shear viscosity which matches the concentration dependence
                      of self-diffusion of the rods. Using the Doi-Edwards-Kuzuu
                      theory, a qualitative description of the rheological
                      response is possible but the observation suggests that the
                      contribution of shear induced energy to the positional
                      entropy is larger than predicted. Moreover, we observe signs
                      of biaxiality due to the combination of shear geometries.},
      month         = {Sep},
      date          = {2016-09-12},
      organization  = {International Soft Matter Conference,
                       Grenoble (France), 12 Sep 2016 - 16 Sep
                       2016},
      subtyp        = {After Call},
      cin          = {ICS-3},
      cid          = {I:(DE-Juel1)ICS-3-20110106},
      pnm          = {551 - Functional Macromolecules and Complexes (POF3-551) /
                      DiStruc - Directed Colloidal Structure at the Meso-Scale
                      (641839)},
      pid          = {G:(DE-HGF)POF3-551 / G:(EU-Grant)641839},
      typ          = {PUB:(DE-HGF)24},
      url          = {https://juser.fz-juelich.de/record/824635},
}