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Optimal orientation field to manufacture magnetostrictive composites with high magnetostrictive performance
Ist Teil von
Journal of magnetism and magnetic materials, 2010-11, Vol.322 (22), p.3648-3652
Ort / Verlag
Amsterdam: Elsevier B.V
Erscheinungsjahr
2010
Link zum Volltext
Quelle
Access via ScienceDirect (Elsevier)
Beschreibungen/Notizen
Magnetostrictive properties have relationship with the applied orientation field during the preparation of giant magnetostrictive composites. To understand the dependence of the optimal orientation field on particle volume fraction, composites with 20%, 30% and 50% particles by volume were fabricated by distributing Terfenol-D particles in an unsaturated polyester resin under various orientation fields. Their magnetostrictive properties were tested without pre-stress at room temperature. The results indicate that as the particle volume fraction increases, the optimal orientation field increases. The main reason for this phenomenon is the packing density for the composites with higher particle volume fraction is larger than that for those with lower particle content.