Temperature dependent magneto-mechanical properties of magnetorheological elastomers

Wen, Qianqian; Shen, Longjiang; Li, Jun; Xuan, Shouhu; Li, Zhiyuan; Fan, Xiaojuan; Li, Binshang; Gong, Xinglong

doi:10.1016/j.jmmm.2019.165998

Cited by 32 publications

(26 citation statements)

References 38 publications

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“…In general, as the amount of magnetic particles in the MRE increases, the MR effect increases but the mechanical property decreases [ 106 , 107 ]. The deterioration of these mechanical characteristics is a very important factor in the industrial application of MREs.…”

Section: Characteristicsmentioning

confidence: 99%

Magnetorheological Elastomers: Fabrication, Characteristics, and Applications

et al. 2020

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Magnetorheological (MR) elastomers become one of the most powerful smart and advanced materials that can be tuned reversibly, finely, and quickly in terms of their mechanical and viscoelastic properties by an input magnetic field. They are composite materials in which magnetizable particles are dispersed in solid base elastomers. Their distinctive behaviors are relying on the type and size of dispersed magnetic particles, the type of elastomer matrix, and the type of non-magnetic fillers such as plasticizer, carbon black, and crosslink agent. With these controllable characteristics, they can be applied to various applications such as vibration absorber, isolator, magnetoresistor, and electromagnetic wave absorption. This review provides a summary of the fabrication, properties, and applications of MR elastomers made of various elastomeric materials.

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Section: Characteristicsmentioning

confidence: 99%

Magnetorheological Elastomers: Fabrication, Characteristics, and Applications

et al. 2020

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“…Recently, Wen et al [15] conducted research work on the magnetomechanical properties of MREs at temperatures ranging from 20 o C to 50 o C. From the results they showed that the initial modulus and magneto-induced modulus decreased with increasing temperature. However, previous studies on the temperature-dependent behavior of MREs, are mainly focused on the temperature-dependent mechanical behavior of these materials and little attention has been paid on the effect of temperature on the magnetic behavior.…”

Section: Introductionmentioning

confidence: 99%

“…the macroscopic magnetic behavior of the MRE. Temperature induced changes in the viscoelastic properties including elastic modulus of the polymeric matrix [15] can affect the spatial arrangement of the magnetic particles. Hence, it's essential to determine the effect of temperature on the magnetic properties of these materials, which is helpful for their practical application and mechanism analysis.…”

Section: Introductionmentioning

confidence: 99%

Temperature-Dependent Magnetic Properties of Magnetorheological Elastomers

2022

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We report on an investigation of the temperature-dependent magnetic properties of magnetorheological elastomers (MREs). These are a class of composites that consist of magnetically permeable particles dispersed in a nonmagnetic polymeric matrix. Under the application of an external magnetic field, a large deformation occurs altering the mechanical properties of these materials. Due to their magnetoelastic coupling response, these materials are finding an increasing interest among the scientific community. These polymer-based composites' performance depends on many factors, which temperature is one of the biggest influencing factors requiring further investigation. In this work, the magnetic properties of isotropic and anisotropic polyurethane-based MRE with different iron (Fe) particle loading fractions (50, 60, 70, and 80% by weight) were investigated under different temperatures. From the analysis, the magnetization curves of these materials are observed to overlap for the different measured temperature values. The variation of various magnetic properties including saturation magnetization and differential susceptibility with temperature was also determined. The results show ~ 2.5% decrement in the saturation magnetization for each of the loading fractions, between the lowest (300K) and the highest (400K) measured temperature. On the other hand, the initial differential susceptibility exhibits different trends with increasing temperature. Generally, the magnetization response of these materials is seen to be only slightly sensitive to temperature changes. Additionally, the magnetization response is observed to be highly dependent on particle loading fractions and particle orientation within the elastomer.

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“…The mechanical behavior of viscoelastic materials depended powerfully on several factors such as temperature, excitation frequency, amplitude, loading rate, etc. [10][11][12][13][30][31][32][33] Besides, the self-heating characteristic in the structures made of viscoelastic materials was dependent on their properties and loading conditions like static preload, frequency, and amplitude. [21][22][23][34][35][36] Cazenove et al 21 showed that the temperature inside the viscoelastic damper under the shear harmonic loading increases considerably with increasing the excitation frequency and amplitude, resulting in a huge decrease in the damping capacity of the damper.…”

Section: Introductionmentioning

confidence: 99%

Self-heating and dynamic mechanical behavior of silicone rubber composite filled with carbonyl iron particles under cyclic compressive loading

Nam

Petríková

Marvalová

et al. 2021

Journal of Composite Materials

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Self-heating and dynamic mechanical behavior of isotropic silicone rubber composite (SRC) filled with micro-sized carbonyl iron particles (CIPs) subjected to cyclic compressive loading have been studied. Effects of pre-strains from 5 to 20%, strain amplitudes from 1 to 5%, and excitation frequencies from 10 to 50 Hz on the self-heating and dynamic mechanical response of the isotropic SRC were investigated. The self-heating temperatures were measured on the surface and at the center of cylindrical SRC specimens. The self-heating temperatures of the isotropic SRC samples showed a fast increase in an initial transient stage and the following isothermal stage. The temperature distribution in the isotropic SRC specimens was non-homogeneous and the temperature decreased from the center to sample edges. The self-heating temperatures of the isotropic SRC increased gradually with raising the strain amplitude and frequency. However, the difference between the internal and surface temperatures was slight for low strain amplitudes and frequencies, while it was significant for high strain amplitudes and frequencies. The temperatures of the isotropic SRC boosted rapidly with increasing the pre-strain to 10% and thereafter gained slightly. Although the isotropic SRC dynamic moduli reduced with the rise of the strain amplitude, they enhanced with increasing the pre-strain and frequency. Besides, the storage modulus of the isotropic SRC varied slightly with time, while the loss modulus reduced markedly especially at the initial period. The decrease in the loss modulus of the isotropic SRC under cyclic compressive loading is attributed to its self-heating temperature rise. A finite element simulation of the heat transfer in the SRC cylinder was conducted. The calculated temperatures in the SRC cylinder were in good agreement with the measured ones at different strain amplitudes and frequencies.

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Temperature dependent magneto-mechanical properties of magnetorheological elastomers

Cited by 32 publications

References 38 publications

Magnetorheological Elastomers: Fabrication, Characteristics, and Applications

Magnetorheological Elastomers: Fabrication, Characteristics, and Applications

Temperature-Dependent Magnetic Properties of Magnetorheological Elastomers

Self-heating and dynamic mechanical behavior of silicone rubber composite filled with carbonyl iron particles under cyclic compressive loading

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