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Magnetostriction and magnetomechanical properties of grain-oriented Tb0.33Dy0.67Fey/Epoxy composite

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Abstract

The magnetostriction and dynamic magnetomechanical properties of the directionally solidified Tb0.33Dy0.67Fey/Epoxy composite were investigated as a function of volume fraction of RFe2 under a magnetic field. This composite was fabricated by infiltrating epoxy after extracting a eutectic phase of the directionally solidified Tb0.33Dy0.67Fey. It was found that the magnetostriction of the composite is higher than that of the as-grown specimens, and the maximum magnetostrictive strain of the sample, which has a volume fraction of 0.72, showed about 1000 ppm at H3=80 kA/m and an optimum preload of 8 MPa. Furthermore, the dynamic magnetomechanical properties of the composite Tb0.33Dy0.67Fey, which is the sensitivity of the strain to the applied field, increased by about two times that of as-grown samples.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 373-1, Guseong-Dong, Yuseong-Gu, Daejeon, 305-701, Korea

    O.Y. Kwon, J.C. Kim, Y.D. Kwon, D.J. Yang, S.H. Lee, Z.H. Lee & S.H. Hong

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  1. O.Y. Kwon
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  2. J.C. Kim
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  3. Y.D. Kwon
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  4. D.J. Yang
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  5. S.H. Lee
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  6. Z.H. Lee
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  7. S.H. Hong
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Correspondence to O.Y. Kwon.

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PACS

75.80.+q; 77.84.Lf; 75.50.Gg

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Kwon, O., Kim, J., Kwon, Y. et al. Magnetostriction and magnetomechanical properties of grain-oriented Tb0.33Dy0.67Fey/Epoxy composite. Appl. Phys. A 80, 1563–1566 (2005). https://doi.org/10.1007/s00339-004-2948-8

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  • DOI: https://doi.org/10.1007/s00339-004-2948-8

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