Počet záznamů: 1

A dimorphic magnetorheological fluid with improved oxidation and chemical stability under oscillatory shear

SYSNO ASEP	0395204
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	A dimorphic magnetorheological fluid with improved oxidation and chemical stability under oscillatory shear
Tvůrce(i)	Sedlačík, M. (CZ) Pavlínek, V. (CZ) Vyroubal, R. (CZ) Peer, Petra (UH-J)_{ORCID, SAI, RID} Filip, Petr (UH-J)_{ORCID, RID, SAI}
Číslo článku	035011
Zdroj.dok.	Smart Materials and Structures. - : Institute of Physics Publishing - ISSN 0964-1726 Roč. 22, č. 3 (2013)
Poč.str.	8 s.
Forma vydání	Online - E
Jazyk dok.	eng - angličtina
Země vyd.	GB - Velká Británie
Klíč. slova	goethites ; magnetorheological fluids ; MR fluids ; tetraethylorthosilicate (TEOS)
Vědní obor RIV	BK - Mechanika tekutin
CEP	GA202/09/1626 GA ČR - Grantová agentura ČR
Institucionální podpora	UH-J - RVO:67985874
UT WOS	000315019900012
DOI	10.1088/0964-1726/22/3/035011
Anotace	The aim of this work was to prepare a dimorphic magnetorheological (MR) fluid for which sedimentation stability, oxidation and chemical stability are enhanced in comparison with common MR fluids, while at the same time preserving the MR effect at its fullest practical level. A dimorphic MR fluid exhibiting these properties was prepared in two steps. The first step involved the partial substitution of carbonyl iron (CI) spherical microparticles with Fe rod-like particles synthesized via a surfactant-controlled solvothermal method. This improved sedimentation stability in comparison with the application of CI particles alone. In the second step both spherical CI and Fe rod-like particles were coated with a polysiloxane layer through the hydrolysis-condensation polymerization of tetraethylorthosilicate. This ensured better oxidation and chemical stability balance with an acceptable decrease in the MR effect. This effect is still markedly better than that based on Fe₃O₄ particles.
Pracoviště	Ústav pro hydrodynamiku
Kontakt	Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003
Rok sběru	2014

Počet záznamů: 1