Magnetorheology of Dimorphic Magnetorheological Suspensions Based on Iron Nanorods

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F15%3A43874155" target="_blank" >RIV/70883521:28610/15:43874155 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Magnetorheology of Dimorphic Magnetorheological Suspensions Based on Iron Nanorods

Popis výsledku v původním jazyce

The aim of this paper is to document suitability of partial substitution of magnetic microspheres with iron nanorods to obtain dimorphic magnetorheological (MR) suspensions with comparable MR performance to conventional MR suspensions exclusively based on carbonyl iron (CI) microparticles while the sedimentation stability is considerably improved since nanoparticles play a role of steric repulsion between the CI microparticles resulting in improved stability against their rapid sedimentation. However, yield stress for dynamic applications is still maintained or even higher due to the occurring additional friction between fibers. The morphology of CI and iron nanorods was analyzed via scanning electron microscopy and transmission electron microscopy, respectively, and magnetic properties via vibrating sample magnetometry. The steady shear flow and small-amplitude dynamic oscillatory shear measurements were carried out to confirm effective MR performance. The sedimentation test showed po

Název v anglickém jazyce

Magnetorheology of Dimorphic Magnetorheological Suspensions Based on Iron Nanorods

Popis výsledku anglicky

The aim of this paper is to document suitability of partial substitution of magnetic microspheres with iron nanorods to obtain dimorphic magnetorheological (MR) suspensions with comparable MR performance to conventional MR suspensions exclusively based on carbonyl iron (CI) microparticles while the sedimentation stability is considerably improved since nanoparticles play a role of steric repulsion between the CI microparticles resulting in improved stability against their rapid sedimentation. However, yield stress for dynamic applications is still maintained or even higher due to the occurring additional friction between fibers. The morphology of CI and iron nanorods was analyzed via scanning electron microscopy and transmission electron microscopy, respectively, and magnetic properties via vibrating sample magnetometry. The steady shear flow and small-amplitude dynamic oscillatory shear measurements were carried out to confirm effective MR performance. The sedimentation test showed po

Druh

O - Ostatní výsledky

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů