The dynamic mechanical properties of magnetorheological elastomer: Catalytic effect of carbonyl iron powder

Cao, Yongan; Lu, Huanglei; Wang, Wenju; Chen, Dong; Yang, Fufeng; Wang, Guoping; Rui, Xiaoting

doi:10.1177/1045389x20930090

Cited by 4 publications

(2 citation statements)

References 38 publications

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“…MRE consists of an elastomer matrix and ferromagnetic fillers (Davis, 1999;Jolly et al, 1996;Lokander and Stenberg, 2003). Some optional additives are added in order to impart superior properties to MRE (Cao et al, 2020;Chen et al, 2008aChen et al, , 2016Poojary et al, 2018;Zhou et al, 2020;Aziz et al, 2016). The elastomer matrix is non-magnetic in nature, and its properties does not change when exposed to magnetic field.…”

Section: Introductionmentioning

confidence: 99%

An experimental investigation on the matrix dependent rheological properties of MRE

Poojary,

Kiran,

Hegde

et al. 2023

Journal of Intelligent Material Systems and Structures

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The rheological properties of magnetorheological elastomers are influenced by magnetically sensitive fillers and the elastomer matrix. The ability to respond to an external magnetic field is imparted by the fillers, while the load-bearing capability is determined by the matrix type. In this paper, the effect of matrix material on the properties of magnetorhological elastomer is explored experimentally. Carbonyl iron particle content is varied by 0%, 15% and 25% by volume to produce magnetorheological elastomer samples using natural rubber, silicone rubber and nitrile butadiene rubber matrices. Forced transmissibility test approach was employed to evaluate the field induced variations in the dynamic stiffness and loss factor of magnetorheological elastomers. The dynamic stiffness of nitrile butadiene rubber is the highest, while that of silicone rubber is the lowest. Addition of carbonyl iron particles significantly improves stiffness, although these gains depend on the properties of unfilled matrix. The addition of 25% by volume of carbonyl iron particle increased the dynamic stiffness of a silicone rubber matrix based magnetorheological elastomer by 67.78%, while the similar change in magnetorheological elastomer with nitrile butadiene rubber matrix was 38.58%. The field dependent response of magnetorheological elastomers is governed by the matrix and ferromagnetic filler concentration. These qualities are higher in magnetorheological elastomer with a low initial dynamic stiffness matrix and lower in magnetorheological elastomers with a stiffer matrix.

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Section: Introductionmentioning

confidence: 99%

An experimental investigation on the matrix dependent rheological properties of MRE

Poojary,

Kiran,

Hegde

et al. 2023

Journal of Intelligent Material Systems and Structures

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“…CIPs, with good magnetic saturation, have been widely applied in magnetorheological fluid and are stable in fluid. 31,32 According to the magnetorheological effect (MRE), magnetic particles can be distributed along magnetic induction lines with the external magnetic field, and the distribution will be restored to its original state in a short time when the external magnetic field is off. As shown in Fig.…”

mentioning

confidence: 99%

Magnetic Control of Electrolyte Trapping Polysulfide for Enhanced Lithium-Sulfur Batteries

Cao

Chen

et al. 2021

J. Electrochem. Soc.

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Lithium sulfur (Li-S) batteries are considered one of the most promising energy storage devices due to their high specific capacity, pollution-free reactant, and low cost. However, the “shuttle effect” of lithium polysulfide (Li2S x ) leads to a fast capacity decay and poor cycle life. Here, the magnetorheological effect (MRE) is first applied in Li-S batteries and a magnetic control electrolyte is designed by introducing carbonyl iron powders (CIPs) to improve the performance of Li-S batteries. According to adsorption bonding theory, the binding energy of Fe site with Li2S4 is up to 2.68 eV via discrete Fourier transform (DFT) calculation. After coupling an external magnetic field, the uniform distribution of CIPs avoids the accumulation on the cathode surface. The induced magnetic field of spherical particles captures dissolved S x 2− effectively by Lorenz force, which is confirmed by adsorption experiments. These magnetized particles form a magnetic shield layer in the electrolyte and alleviate the “shuttle effect.” At 0.2 C, the initial specific capacity reaches 1296 mAh g−1. Magnetic control electrolyte provides not only a novel insight but also creates a new possibility for mitigating the “shuttle effect” thereby promoting performance of Li-S batteries.

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The Development of Piezoelectric Inchworm Actuator Clamped With Magnetorheological Elastomer and Its Potential Application in Brain–Computer Interface Implantation

Lin

et al. 2023

IEEE Trans. Ind. Electron.

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The dynamic mechanical properties of magnetorheological elastomer: Catalytic effect of carbonyl iron powder

Cited by 4 publications

References 38 publications

An experimental investigation on the matrix dependent rheological properties of MRE

An experimental investigation on the matrix dependent rheological properties of MRE

Magnetic Control of Electrolyte Trapping Polysulfide for Enhanced Lithium-Sulfur Batteries

The Development of Piezoelectric Inchworm Actuator Clamped With Magnetorheological Elastomer and Its Potential Application in Brain–Computer Interface Implantation

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