Magnetorheological and deformation properties of magnetically controlled elastomers with hard magnetic filler

Степанов, Г. В.; Chertovich, Alexander V.; Kramarenko, Elena Yu.

doi:10.1016/j.jmmm.2012.02.062

Cited by 108 publications

(85 citation statements)

References 17 publications

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“…Most influencing factor: a) Volume fraction and initial distribution of filler particle [14,48,77,122,179,183,263] b) Bonding strength between matrix and particles The "Payne effect" can be calculated as follows:…”

Section: Payne Effectmentioning

confidence: 99%

“…[7] In addition to the aforementioned, magnetic fields have the ability to penetrate space and substances. The term magnetoactive elastomers has been used by several research groups, [11][12][13][14][15] in which the stiffness of an elastic matrix inserted with magnetizable particles is able to be controlled by the implementation of an external magnetic field. [8] In general, magnetically activated smart materials comprise at least two kinds of material having different magnetic properties or where one is not even a solid magnetic material.…”

Section: Introductionmentioning

confidence: 99%

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Recent Progress on Magnetorheological Solids: Materials, Fabrication, Testing, and Applications

et al. 2014

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Magnetorheological (MR) materials are classified as smart materials due to their responsiveness to external magnetic stimuli. Intensive research on MR materials has led to broad applications in several potential fields. A solid carrier matrix state called MR elastomer with its exceptional magnetic responsive feature is obtained by merging magnetizable particles within an elastomeric polymer. This integration results in outstanding characteristics on the rheological performances. Special prominence is given to the understanding of the base materials and fabrication as well as the functional behavior through various characterization methods. Broad applications of MREs are also explored to provide a profound market picture and to motivate researchers to develop novel technology.

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Section: Payne Effectmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Recent Progress on Magnetorheological Solids: Materials, Fabrication, Testing, and Applications

et al. 2014

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“…Magnetoactive elastomers (MAEs) are polymer composite materials that have magnetically sensitive filler particles embedded in the polymer matrix [1][2][3][4][5][6][7][8][9][10][11][12][13]. The main property that characterizes these smart materials is their high responsiveness to external magnetic fields.…”

Section: Introductionmentioning

confidence: 99%

“…the changes to viscoelastic properties that occur in an MAE sample under the influence of external magnetic fields [1][2][3][4][5], and magnetodeformational effect, i.e. spontaneous deformation in magnetic field [6][7][8][9][10][11], serve as a basis for using MAEs as elements of tunable damping devices [12] and cell substrates [13]. This paper is dedicated to studying the MAEs for medical purposes, namely a surgical treatment of complicated retinal detachment cases [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Influence of the geometry on magnetic interactions in a retina fixator based on a magnetoactive elastomer seal

Nadzharyan

Makarova

Казимирова

et al. 2018

J. Phys.: Conf. Ser.

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Abstract.We study the effects the geometric configuration has on magnetic interactions between a magnetoactive elastomer (MAE) sample and various systems of permanent magnets for problems with both flat and curved geometry. MAEs consist of a silicone polymer matrix and iron filler microparticles embedded in it. Permanent magnets are cylindrical neodymium magnets arranged in a line on a flat or curved solid surfaces. We use computer simulations, namely the finite element method, in order to study the interaction force and magnetic pressure in a system with an MAE sample and permanent magnets. The model is based on classical Maxwell magnetostatics and two factors taking into account field dependence of MAE's magnetic properties and inhomogeneities caused by local demagnetization. We calculate magnetic pressure dependences on various geometric parameters of the system, namely, the diameter and the height of permanent magnets, the distance between the magnets and dimensions of MAE samples. This research aims to create a set of guidelines for choosing the geometric configuration of a retina fixator based on MAE seals to be used in eye surgery for retinal detachment treatment.

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“…6 In recent years, thin films of FeCoV have shown high potential for applications in spintronic memory devices. 7,8 While previous studies on thin films of the FeCo system suggest that the dynamic properties are largely dependent on composition, 9 seed layer, 10 film thickness, 11 and heat treatment, 12 this Letter reports the influence of growth temperature on the dynamic properties of the films. Also, of particular interest is that a nearly linear relation between the FMR extrinsic linewidth and coercivity is reported and discussed.…”

mentioning

confidence: 93%

Positive correlation between coercivity and ferromagnetic resonance extrinsic linewidth in FeCoV/SiO2 films

Wei

Bručas

Gunnarsson

et al. 2014

Applied Physics Letters

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Dynamic magnetic properties of Fe 49 Co 49 V 2 thin films grown on Si/SiO 2 substrates have been studied by using ferromagnetic resonance technique. The effective Land e g-factor, extrinsic linewidth, and Gilbert relaxation rate are all found to decrease in magnitude with increasing sample growth temperature from 20 C to about 400-500 C and then on further increase of the growth temperature to increase in magnitude. Samples grown at about 400-450 C display the smallest coercivity, while the smallest value of the Gilbert relaxation rate of about 0.1 GHz is obtained for samples grown at 450-500 C. An almost linear relation between extrinsic linewidth and coercivity is observed, which suggests a positive correlation between magnetic inhomogeneity, coercivity, and extrinsic linewidth. The Gilbert relaxation is found to decrease with increasing lattice constant, which is ascribed to the degree of structural order in the films. V C 2014 AIP Publishing LLC.

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Magnetorheological and deformation properties of magnetically controlled elastomers with hard magnetic filler

Cited by 108 publications

References 17 publications

Recent Progress on Magnetorheological Solids: Materials, Fabrication, Testing, and Applications

Recent Progress on Magnetorheological Solids: Materials, Fabrication, Testing, and Applications

Influence of the geometry on magnetic interactions in a retina fixator based on a magnetoactive elastomer seal

Positive correlation between coercivity and ferromagnetic resonance extrinsic linewidth in FeCoV/SiO2 films

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