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Journal of Applied Physics / Volume 111 / Issue 7 / PROCEEDINGS OF THE 56TH ANNUAL CONFERENCE ON MAGNETISM AND MAGNETIC MATERIALS / Magneto-Optic, Magnetoelastic, and Magnetocaloric Materials

J. Appl. Phys. 111, 07A906 (2012); http://dx.doi.org/10.1063/1.3670066 (3 pages)

The compressive stress effect on the magnetostriction and magnetization for Sm-Dy-Fe composites

Bowen Wang1,2, Zhihua Wang1, Yanming Hao3, Ling Weng1, Wenmei Huang1, and Weili Yan1

1 Province-Ministry Joint Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability, Hebei University of Technology, Tianjin 300130, China
2 International Center for Materials Physics, the Academy of Sciences, Shenyang 110015, China
3 Department of Physics, College of Science, Tianjin University of Science & Technology, Tianjin 300222, China

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(Received 21 September 2011; accepted 7 October 2011; published online 7 February 2012)

Sm0.88Dy0.12Fe2 rod composites were fabricated under a compaction pressure of 800 MPa along the rod direction and in a magnetic field of 200 kA/m along the direction, perpendicular to the rod axis. It is found that the magnetostriction λ|| parallel to the rod direction is almost unchanged with increasing the compressive stress up to 20 MPa and shows a large unsaturated magnetostriction value of −620 × 10−6 at 600 kA/m. The magnetostriction λ⊥ perpendicular to rod axis increases with increasing the compressive stress when the magnetic field is larger than 300 kA/m. The variation of the magnetostriction and magnetization with compressive stress has been discussed. This result is very important to application of Sm-Dy-Fe composites.

© 2012 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. EXPERIMENTS
  3. RESULTS AND DISCUSSION
  4. CONCLUSIONS

KEYWORDS, PACS, and IPC

Keywords

composite materials, dysprosium alloys, iron alloys, magnetisation, magnetostriction, rods (structures), samarium alloys, X-ray diffraction

PACS

  • 75.80.+q

    Magnetomechanical effects, magnetostriction

  • 75.60.Ej

    Magnetization curves, hysteresis, Barkhausen and related effects

  • 81.05.Bx

    Metals, semimetals, and alloys

International Patent Classification (IPC)

  • C22C38/00

    Ferrous alloys, e.g. steel alloys

  • H01F13/00

    Apparatus or processes for magnetising or demagnetising

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3670066

PUBLICATION DATA

ISSN

0021-8979 (print)  
1089-7550 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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