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MODELING OF THE MAGNETOELECTRIC EFFECT OF THREE-PHASE MULTIFERROIC PARTICULATE COMPOSITES

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Using the effective medium approximation, we set up a model for the investigation of 3-phase magnetoelectric composites of 0-0-3 connectivity. The two particulate phases are magnetostrictive particles and piezoelectric particles, which are considered to be spherical in shape and dispersed in a continuous polymer matrix of non-negligible electrical conductivity. The electric, magnetic and elastic properties of the constituents are assumed to be isotropic. We calculate the magnetoelectric voltage/charge coefficient of the composites as a function of bias magnetic field and compare the theoretical results with measurements on Terfenol-D/PZT/LiClO4-PEO and Terfenol-D/PZT/PEO 0-0-3 composite systems. Reasonably good agreement between model predictions and experimental results is obtained.
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Keywords: 0-0-3 composite; magnetoelectric coefficient

Document Type: Research Article

Affiliations: Department of Applied Physics, Materials Research Center and Center for Smart Materials, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China

Publication date: 2008-01-01

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