Fabrication and characterization of isotropic magnetorheological elastomers

By Xiu-mei Gong, Xiu-Xiu Zhang, Peiqiang Zhang. 2005

340 citations recorded by the source corpus.

This paper presents a new method to fabricate isotropic magnetorheological (MR) elastomers under natural conditions. In the absence of a magnetic field, a variety of MR elastomer samples made of carbonyl iron particles, silicon rubber and silicone oil, were fabricated. Their dynamic viscoelastic properties were characterized by a measurement system developed by our group. Also, the microstructure of the samples was observed by a scanning electron microscope. The effects of iron particles and additives on the MR effect and the relationship between microstructure and mechanical properties were investigated. Furthermore, a simple self-assembled microstructure was proposed to explain the inherent magnetoviscoelasticity of MR elastomers prepared in the absence of a magnetic field. The analytical results of the model are in agreement with experimental data. The study is also expected to provide a good guide for designing and preparing new MR elastomers.

Subfields: Civil and Structural Engineering

View Paper: https://www.semanticscholar.org/paper/660acccbe476b676de7c7fff6d48f1a61992fe2d

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In Civil and Structural Engineering

1. Weihua Li
2. C. Law
3. A. Pegoretti
4. Rani Elhajjar
5. Xiu-mei Gong
6. Huaxia Deng
7. Xinglong Gong
8. Yang Zhou

Citations in the corpus

• Study on the damping properties of magnetorheological elastomers based on cis-polybutadiene rubber (2008, background): “The former results in isotropic MREs [6,7], while the latter results in anisotropic or structured MREs [3].”
• Adaptive Tuned Vibration Absorber based on Magnetorheological Elastomer (2007, background): “The unique characteristic of MRE is that its shear modulus can be controlled by the external magnetic field rapidly, continuously, and reversibly (Shen et al., 2004; Gong et al., 2005).”
• Development of an adaptive tuned vibration absorber with magnetorheological elastomer (2006, neutral): “applied to the polymer composite during crosslinking so that particles form chainlike or columnar structures, which are fixed in the matrix after curing [10].”
• Application of magnetorheological elastomer to vibration absorber (2008, background): “3b shows the loss factor is independent of magnetic field and frequency, which was reported before [17].”
• Magnetostrictive polymer composites: Recent advances in materials, structures and properties (2018, background): “Improved mechanical properties are realized by silane treatments of particles [108], silicone oil additives [46], or addition of carbon black [44,109].”
• Development of a real-time tunable stiffness and damping vibration isolator based on magnetorheological elastomer (2012, neutral): “…contamination, and sealing existing in MRFs (Carlson and Jolly, 2000; Chen et al., 2008; Farshad and Le Roux, 2005; Popp et al., 2010) and attract considerable attention in recent years (Deng et al., 2006; Ginder et al., 1999, 2001; Gong et al., 2005; Lerner and Cunefare, 2008; Ni et al., 2009).”
• Effect of carbon black on the mechanical performances of magnetorheological elastomers (2008, neutral): “Many groups have proved that the magnetic particle content plays a very important role in the MR effect [12,13,15].”
• Viscoelastic properties of MR elastomers under harmonic loading (2010, background): “This has been confirmed in several studies in terms of both anisotropic (Wang et al. 2009; Bossis et al. 2001; Fuchs et al. 2007; Shen et al. 2004; Zhou and Jiang 2004) and isotropic ( Gong et al. 2005; Lokander and Stenberg 2003a, b) MREs.”