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1 2009

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Intelligent epoxy matrix composite materials consisting of Tb0.3Dy0.7Fe1.9 magnetostrictive particulates

Dobrzański L., Wydrzyńska A., Iesenchuk O.

Archives of Materials Science and Engineering

2009

Vol. 35, nr 1

33-38

Purpose: This paper presents the acceptable technology to fabricate epoxy-bonded Tb0.3Dy0.7Fe1.9 composites in an effort to produce Tb0.3Dy0.7Fe1.9 bulks with good magnetostrictive properties through the optimization of some fabrication parameters. Design/methodology/approach: Intelligent polymer matrix composite materials consisting of magnetostrictive particulates was obtained by homogenously mixing low viscosity epoxy resin and Tb0.3Dy0.7Fe1.9 powder with grains from 38 to 106 μm. The relationships among the manufacturing technology of these materials, their microstructure, as well as their magnetostriction were evaluated. Materialographic examination of powders morphology and the structure of composite materials were also made. Findings: Composite materials consisting of Tb0.3Dy0.7Fe1.9 particles can extend the possibilities of application the magnetostrictive materials and reduce the cost of their manufacturing. The obtained materials show regular distribution of Tb0.3Dy0.7Fe1.9 powder in epoxy matrix. Research limitations/implications: The advantages of the bonded magnetostrictive composite materials are their simple technology, possibility of forming their properties and lowering manufacturing costs. It is expected that the magnetostrictive properties of Tb0.3Dy0.7Fe1.9 composites presented in this work can be further improved by amelioratethe fabrication parameters. Originality/value: Manufacturing processes of intelligent epoxy matrix composite materials consisting of Tb0.3Dy0.7Fe1.9 magnetostrictive particulates.