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Can I read On the shear thinning of non-Brownian suspensions: Friction or adhesion? on EtoBox?
On the shear thinning of non-Brownian suspensions: Friction or adhesion? by Anastasia Papadopoulou; Jurriaan J. Gillissen; Helen J. Wilson; Manish K. Tiwari; Stavroula Balabani is a Engineering article available to read on EtoBox.
What is On the shear thinning of non-Brownian suspensions: Friction or adhesion? about?
Shear thinning is fundamental to a broad range of particle suspensions, both in nature and in industrial applications. Yet the mechanisms governing it remain unclear. In particular, the distinct, and often competing, roles of the interparticle, particle-fluid interactions and the particle surface morphology need clarity. By using non-Brownian silica particles with different morphologies, surface functional groups and suspending media, here we reveal two different shear thinning mechanisms, controlled either by frictional or adhesion forces between particles. Smooth glass sphere suspensions in a polar medium (glycerol), where particles interact strongly with the solvent, showed no shear thinning even at high volume fractions (φ ≥ 0.5), while rough silica particles, with similar size distribution, induced shear thinning behaviour at φ values of 0.25 and above. The latter is attributed to the increased frictional contacts in the rough and irregular particles. Considering surface irregularity as elastically deformable asperities enabled us to estimate the critical load above which two neighbouring rough particles experience frictional contacts giving rise to shear thinning. In contrast
Who reads On the shear thinning of non-Brownian suspensions: Friction or adhesion??
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Anastasia Papadopoulou; Jurriaan J. Gillissen; Helen J. Wilson; Manish K. Tiwari; Stavroula Balabani
- Published
- 2020
- Language
- EN
- Field
- Engineering (Physical Sciences)