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Influence of particle pre-orientation on elastomagnetic effect in a composite material of ellipsoidal Ni microparticles in a silicone matrix

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Abstract

The dependence of the elastomagnetic effect on the orientation of Ni ellipsoidal microparticles dispersed in a silicone matrix is investigated. When a volume strain is produced on the composite material in a fixed magnetizing field, the effects of mechanical and magnetic torque are simply modeled and the induced magnetization change can be predicted as a function of the particles’ pre-orientation. The theoretical predictions are experimentally verified. As a consequence, it is possible to govern the elastomagnetic effect by proper microparticle orientation.

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Authors and Affiliations

  1. Istituto Nazionale per la Fisica della Materia (INFM)-UdR Na, Dip. di Scienze Fisiche, Università “Federico II”, P.le V.Tecchio 80, 80125, Napoli, Italy

    L. Lanotte , G. Ausanio  & V. Iannotti

  2. Dip. di Ingegneria dei Materiali e della Produzione, Università “Federico II”, P.le V.Tecchio 80, 80125, Napoli, Italy

    G. Ausanio  & C. Luponio Jr.

Authors
  1. L. Lanotte
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  2. G. Ausanio
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  3. V. Iannotti
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  4. C. Luponio Jr.
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Correspondence to L. Lanotte .

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PACS

75.80.+q; 75.50.-y; 81.05.Zx

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Lanotte , L., Ausanio , G., Iannotti , V. et al. Influence of particle pre-orientation on elastomagnetic effect in a composite material of ellipsoidal Ni microparticles in a silicone matrix. Appl Phys A 77, 953–958 (2003). https://doi.org/10.1007/s00339-002-1939-x

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  • DOI: https://doi.org/10.1007/s00339-002-1939-x

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