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Nature of the divergence in low shear viscosity of colloidal hard-sphere dispersions
Abstract
Measurements of the low-shear viscosity eta(o) with a Zimm-Crothers viscometer for dispersions of colloidal hard spheres are reported as a function of volume fraction phi up to 0.56. Nonequilibrium theories based on solutions to the two-particle Smoluchoski equation or ideal mode coupling approximations do not capture the divergence. However, the nonhydrodynamic contribution to the relative viscosity Deltaeta(o) is correlated over a wide range of volume fractions by the Doolittle and Adam-Gibbs equations, indicating an exponential divergence at phi(m)=0.625+/-0.015. The data extend the previously proposed master curve, providing a test for improved theories for the many-body thermodynamic and hydrodynamic interactions that determine the viscosity of hard-sphere dispersions.
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Citations
Cited by
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Royall, C. P., & Williams, S. R. (2015) · Physics Reports · doi:10.1016/j.physrep.2014.11.004 · Cited by 473
Tunable shear thickening in suspensions
Lin, N. Y. C., Ness, C., Cates, M. E., Sun, J., & Cohen, I. (2016) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1608348113 · Cited by 115
Metadata
- Authors
- Cheng, Z., Zhu, J., Chaikin, P. M., Phan, S.-E., & Russel, W. B.
- Venue
- Physical Review E
- Publisher
- American Physical Society (APS)
- Published
- 2002-04-08
- Volume
- 65
- Issue
- 4
- Pages
- 041405-041405
- ISSN
- 1063-651X (ISSN-L)
- 1095-3787
- OpenAlex
- W2126037724
- Cited by
- 192
- References
- 0
- FWCI
- 5.61
- Type
- journal article
- Language
- en
- Open access
- closed
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- Cheng, Z., Zhu, J., Chaikin, P. M., Phan, S.-E., & Russel, W. B. (2002). Nature of the divergence in low shear viscosity of colloidal hard-sphere dispersions. Physical Review E. https://doi.org/10.1103/physreve.65.041405
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