Tunable discontinuous shear thickening in capillary flow of MR suspensions
| Autor: | Yan Grasselli, Alain Ciffreo, Georges Bossis, Olga Volkova |
|---|---|
| Přispěvatelé: | Institut de Physique de Nice (UMR 7010 CNRS-UNS), Institut Non Linéaire de Nice (INLN)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Dilatant
Materials science Capillary action FOS: Physical sciences Discontinuous shear thickening 02 engineering and technology 01 natural sciences chemistry.chemical_compound magnetic suspensions 0103 physical sciences General Materials Science Composite material 010306 general physics jamming Cement Condensed Matter - Materials Science capillary flow Mechanical Engineering Superplasticizer magnetorheology Materials Science (cond-mat.mtrl-sci) 021001 nanoscience & nanotechnology extrusion chemistry Volume (thermodynamics) [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] Extrusion 0210 nano-technology Ethylene glycol |
| Zdroj: | Journal of Intelligent Material Systems and Structures Journal of Intelligent Material Systems and Structures, SAGE Publications, 2021, 32 (12), pp.1349-1357. ⟨10.1177/1045389X20959458⟩ |
| ISSN: | 1045-389X 1530-8138 |
| DOI: | 10.1177/1045389X20959458⟩ |
| Popis: | International audience; Very concentrated suspensions of iron particles in water or ethylene glycol can be obtained thanks to the use of superplasticizer molecules used in cement industry. At high volume fractions, these suspensions show a discontinuous shear thickening which was thoroughly characterized in rotational geometries. We will show that the jamming transition is also present in a capillary flow, and that it manifests through the formation of a non-consolidated porous medium at the constriction between the barrel and the capillary. In suspension of iron particles, the dynamics of formation of this porous medium, and so the pressure, can be controlled by a low magnetic field and is reversible for a constant volume flow rate, opening potential new applications in the domain of dampers and force control devices. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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