Fabrication of strong magnetic micron-sized supraparticles with anisotropic magnetic properties for magnetorheology
| Autor: | Jose R. Morillas, J. de Vicente, Elizabeth Carreón-González |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
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| Zdroj: | Digibug: Repositorio Institucional de la Universidad de Granada Universidad de Granada (UGR) Digibug. Repositorio Institucional de la Universidad de Granada instname |
| Popis: | Dr Tavacoli is acknowledged for useful discussions. This work was supported by MICINN PID2019-104883GB-I00 project (Spain), Junta de Andalucı´a P18-FR-2465 project and European Regional Development Fund (ERDF). J. R. M. acknowledges FPU14/01576 fellowship. E. C.-G. acknowledges financial support by CONACYT (Ref. #232347). We propose three different techniques to synthesize anisotropic magnetic supraparticles for their incorporation in the formulation of magnetorheological fluids with novel potential applications. The techniques include microtransfer molding, electrodeposition and microfluidic flow-focusing devices. Although the yield of these methods is not large, with their use, it is possible to synthesize supraparticles with anisotropy in both their magnetic content and shape. The magnetorheological characteristics (yield stress) of the resulting field-induced structures were computed using finite element method simulations and demonstrated to be strongly dependent on the microstructural anisotropy of the supraparticles. In anisotropic particles, the simulated yield stress is always larger than that of the isotropic ones consisting of magnetically homogeneous spherical particles. MICINN PID2019-104883GB-I00 project (Spain) Junta de Andalucía P18-FR-2465 project European Regional Development Fund (ERDF) FPU14/01576 CONACYT (Ref. #232347) |
| Databáze: | OpenAIRE |
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