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Temperature-dependent magnetic properties of a magnetoactive elastomer: Immobilization of the soft-magnetic filler

  • The magnetic properties of a magnetoactive elastomer (MAE) filled with mu m-sized soft-magnetic iron particles have been experimentally studied in the temperature range between 150 K and 310 K. By changing the temperature, the elastic modulus of the elastomer matrix was modified, and it was possible to obtain magnetization curves for an invariable arrangement of particles in the sample and in the case when the particles were able to change their position within the MAE under the influence of magnetic forces. At low (less than 220 K) temperatures, when the matrix becomes rigid, the magnetization of the MAE does not show a hysteresis behavior, and it is characterized by a negative value of the Rayleigh constant. At room temperature, when the polymer matrix is compliant, a magnetic hysteresis exists where the dependence of the differential magnetic susceptibility on the magnetic field exhibits local maxima. The appearance of these maxima is explained by the elastic resistance of the matrix to the displacement of particles under the action of magnetic forces.

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Metadaten
Author:Andrii V. BodnarukORCiD, Alexander Brunhuber, Viktor M. Kalita, Mykola M. KulykORCiD, Andrei A. SnarskiiORCiD, Albert F. LozenkoORCiD, Sergey M. RyabchenkoORCiD, Mikhail Shamonin (Chamonine)ORCiDGND
DOI:https://doi.org/10.1063/1.5023891
Parent Title (English):Journal of Applied Physics
Publisher:AIP Publishing
Document Type:Article
Language:English
Year of first Publication:2018
Release Date:2022/04/06
Tag:BEHAVIOR; FIELD; GELS; MICROSTRUCTURE; Magnetorheological elastomers; PERMEABILITY; RAYLEIGH LAW; STRAIN; composites; hysteresis
Volume:123
Issue:11
Article Number:115118
Institutes:Fakultät Elektro- und Informationstechnik
Fakultät Elektro- und Informationstechnik / Labor Intelligente Materialien und Strukturen
Begutachtungsstatus:peer-reviewed
research focus:Produktion und Systeme
Licence (German):Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG