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Study of the Physical Properties of Carbonyl Iron Particles-Oriented Magneto-Rheological Elastomer
Corresponding Author(s) : K.H. Chung
Asian Journal of Chemistry,
Vol. 25 No. 9 (2013): Vol 25 Issue 9
Abstract
The physical properties of an anisotropic magneto-rheological elastomer were examined. The magneto-responsible particles were incorporated into a natural rubber matrix at a volume fraction of 0, 10, 20, 30, 40 and 50 vol. %. The magneto-rheological elastomers were prepared using a newly proposed neodymium magnet inserted into the mold to align the particles efficiently. The tensile strength of the anisotropic magneto-rheological elastomer decreased abruptly, whereas the hardness was higher than that of isotropic magneto-rheological elastomer. At an input current of 3A, magneto-rheological elastomer containing 30 vol. % magneto-responsible particle showed the maximum magneto-rheological effect, which was explained by the ratio of the shear modulus of anisotropic magneto-rheological elastomer with that of isotropic magneto-rheological elastomer and the ratio of the shear modulus shift was 59 %. Based on these results, the orientation of magneto-responsible particle can affect the damping properties of magneto-rheological elastomer.
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References
H.G. Busmann, B. Giinther and U. Meyer, Nano Structured Mater., 12, 531 (1999).
F.D. Goncalves, J.H. Koo and M. Ahmadian, Shock Vibration Digest, 38, 203 (2006).
J.D. Carlson and M.R. Jolly, Mechatronics, 10, 555 (2000).
L.C. Davis, J. Appl. Phys., 85, 3348 (1999).
C. Bellan and G. Bossis, Int. J. Modern Phys. B, 16, 2247 (2000).
M. Lokander and B. Stenberg, Polym. Testing, 22, 245 (2003).
Y. Shen, M.F. Golnaraghi and G.R. Heppler, J. Intelligent Mater. Syst. Struct., 15, 27 (2004).
K. Chung and K. Yoon, Elastom. Compos., 45, 106 (2010).