Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/101383
Title: Magnetorheological effect of magnetoactive elastomer with a permalloy filler
Authors: Borin, D.
Stepanov, G.
Musikhin, A.
Zubarev, A.
Bakhtiiarov, A.
Storozhenko, P.
Issue Date: 2020
Publisher: MDPI AG
Citation: Magnetorheological effect of magnetoactive elastomer with a permalloy filler / D. Borin, G. Stepanov, A. Musikhin, et al. — DOI 10.3390/polym12102371 // Polymers. — 2020. — Vol. 12. — Iss. 10. — P. 1-25. — 2371.
Abstract: Within the frames of this study, the synthesis of a permalloy to be used as a filler for magnetoactive and magnetorheological elastomers (MAEs and MREs) was carried out. By means of the mechanochemical method, an alloy with the composition 75 wt.% of Fe and 25 wt.% of Ni was obtained. The powder of the product was utilized in the synthesis of MAEs. Study of the magnetorheological (MR) properties of the elastomer showed that in a ~400 mT magnetic field the shear modulus of the MAE increased by a factor of ~200, exhibiting an absolute value of ~8 MPa. Furthermore, we obtained experimentally a relative high loss factor for the studied composite; this relates to the size and morphology of the synthesized powder. The composite with such properties is a very perspective material for magnetocontrollable damping devices. Under the action of an external magnetic field, chain-like structures are formed inside the elastomeric matrix, which is the main determining factor for obtaining a high MR effect. The effect of chain-like structures formation is most pronounced in the region of small strains, since structures are partially destroyed at large strains. A proposed theoretical model based on chain formation sufficiently well describes the experimentally observed MR effect. The peculiarity of the model is that chains of aggregates of particles, instead of individual particles, are considered. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
Keywords: DAMPING EFFECT
FERROGEL
MAGNETOACTIVE ELASTOMER
MAGNETORHEOLOGY
PERMALLOY FILLER
AGGREGATES
ELASTOMERS
FILLERS
IRON ALLOYS
MAGNETIC FIELDS
NICKEL ALLOYS
PLASTICS
ELASTOMERIC MATRICES
EXTERNAL MAGNETIC FIELD
INDIVIDUAL PARTICLES
MAGNETO-RHEOLOGICAL
MAGNETO-RHEOLOGICAL ELASTOMERS
MAGNETORHEOLOGICAL EFFECTS
MECHANO-CHEMICAL METHODS
THEORETICAL MODELING
PERMALLOY
URI: http://hdl.handle.net/10995/101383
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85092790211
PURE ID: 14157369
da6c53a1-a15b-484f-a200-7111bd0c70f5
ISSN: 20734360
DOI: 10.3390/polym12102371
metadata.dc.description.sponsorship: This work is supported by the research association between the Deutsche Forschungsgemeinschaft (DFG) under Grant Bo 3343/2‐1 within PAK 907 and support of RFBR under Grant 19‐53‐12039. A.M., A.Z. are grateful the RFBR, projects 19‐31‐90003, 19‐52‐45001, 20‐02‐00022 and the Ministry of Science and Higher Education of the Russian Federation, project № FEUZ‐2020‐0051.
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