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Anisotropic magnetostrictive metal-polymer composites for functional devices

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Abstract

New metal-polymer composites based on mechanochemically synthesized magnetostrictive Fe-Ga phase particles with dimensions of up to 2 μm dispersed and spatially oriented in a polymer matrix have been studied. The polymer matrix for spatial anisotropic stabilization of particles was represented by modified polyurethane (PU). An increase in the magnetostrictive effect was achieved by directed orientation of particles in a magnetic field applied during polymerization of the PU matrix. The spatial anisotropy of the composite has been studied by the methods of conversion Mössbauer spectroscopy with resonant X-ray detection and scanning electron microscopy. It is shown that the mechanochemical synthesis is an effective method of obtaining particles with microstress-enhanced magnetostriction. The use of these particles for the formation of a functional elastomer composite provides a material with significant magnetostrictive effect, which can be several-fold increased due to orientation of particles in an applied magnetic field. The obtained anisotropic magnetostrictive composite is a promising material for the creation of smart functional components of positioning systems, attenuators, and sensors.

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Authors and Affiliations

  1. Department of Physics, Moscow State University, Moscow, 119899, Russia

    T. Yu. Kiseleva, S. I. Zholudev, I. A. Il’inykh & A. A. Novakova

  2. Moscow Institute of Steel and Alloys (State Technological University), Moscow, 119991, Russia

    T. Yu. Kiseleva, S. I. Zholudev, I. A. Il’inykh & A. A. Novakova

Authors
  1. T. Yu. Kiseleva
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  2. S. I. Zholudev
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  3. I. A. Il’inykh
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  4. A. A. Novakova
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Correspondence to T. Yu. Kiseleva.

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Original Russian Text © T.Yu. Kiseleva, S.I. Zholudev, I.A. Il’inykh, A.A. Novakova, 2013, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2013, Vol. 39, No. 24, pp. 71–80.

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Kiseleva, T.Y., Zholudev, S.I., Il’inykh, I.A. et al. Anisotropic magnetostrictive metal-polymer composites for functional devices. Tech. Phys. Lett. 39, 1109–1113 (2013). https://doi.org/10.1134/S1063785013120201

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  • DOI: https://doi.org/10.1134/S1063785013120201

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