Effects of Magnetic Powder Loading on Mechanical Properties and Magnetic Properties of Natural Rubber

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The effect of magnetic powders and powders loading on magnetic properties and mechanical properties of magnetic rubbers were studied. The natural rubber with magnetic powders, Barium ferrite, Neodymium iron boron, were used as starting materials to prepare magnetic rubbers. Barium ferrite (BaO.6F2O3) powders had been sintered at 1285 oC for 30 hours to improve its crystal structure. The physical properties of magnetic rubbers, residual flux density (Br), coercive force (Hc), maximum energy product (BHmax), hardness and density, had a trend to increase as enhancing magnetic powders loading. However, some properties such as, intrinsic coercive force (Hci), tensile strength and elongation at break, had a trend to decrease when the magnetic powder loading was increased. Magnetic properties of the anisotropic type, sintered powders, were higher than isotropic type, non-sintered powders, except the Hci because anisotropic magnetic rubber indicated crystal orientation in the same direction.

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Periodical:

Edited by:

P. VINCENZINI

Pages:

1423-1428

DOI:

10.4028/www.scientific.net/AST.45.1423

Citation:

S. Woramongconchai et al., "Effects of Magnetic Powder Loading on Mechanical Properties and Magnetic Properties of Natural Rubber", Advances in Science and Technology, Vol. 45, pp. 1423-1428, 2006

Online since:

October 2006

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$35.00

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