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Issue 9, 2018
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Strain heterogeneity in sheared colloids revealed by neutron scattering

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Abstract

Recent computational and theoretical studies have shown that the deformation of colloidal suspensions under a steady shear is highly heterogeneous at the particle level and demonstrate a critical influence on the macroscopic deformation behavior. Despite its relevance to a wide variety of industrial applications of colloidal suspensions, scattering studies focusing on addressing the heterogeneity of the non-equilibrium colloidal structure are scarce thus far. Here, we report the first experimental result using small-angle neutron scattering. From the evolution of strain heterogeneity, we conclude that the shear-induced deformation transforms from nearly affine behavior at low shear rates, to plastic rearrangements when the shear rate is high.

Graphical abstract: Strain heterogeneity in sheared colloids revealed by neutron scattering

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Publication details

The article was received on 23 Oct 2017, accepted on 06 Feb 2018 and first published on 07 Feb 2018


Article type: Communication
DOI: 10.1039/C7CP07197C
Citation: Phys. Chem. Chem. Phys., 2018,20, 6050-6054
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    Strain heterogeneity in sheared colloids revealed by neutron scattering

    K. Chen, B. Wu, L. He, G. S. Smith, C. Do, G. Huang, G. Zhang and Y. Wang, Phys. Chem. Chem. Phys., 2018, 20, 6050
    DOI: 10.1039/C7CP07197C

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