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Magnetization Loss of MgB2 Superconducting Wire at Various Temperatures

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Abstract

The magnetization loss of MgB2 wire was investigated using numerical calculations based on the finite element method. Various superconducting properties of MgB2 wire such as nonlinearity and the field dependence of the critical current were considered in the numerical formulation. An analysis of magnetization loss was carried out as a function of the external magnetic field for a wide range of operating temperatures. The numerical results were compared with conventional theories and were found to be in relatively good agreement. An alternate approach based on a normalization method using critical current data was also employed as a simple method for predicting magnetization loss. The effectiveness of the simple equation for predicting loss was verified by comparisons of both values for various temperatures.

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Acknowledgements

This work was supported by the Korea Basic Science Institute under Grant K32502 and also by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2010-0003558).

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Authors and Affiliations

  1. Center for Analytical Instrumentation Development, Korea Basic Science Institute, Busan, 609-735, Korea

    Seyong Choi, Jang-Hee Yoon, Byoung-Seob Lee & Mi-Sook Won

  2. Institute for Superconducting and Electronic Materials, University of Wollongong, Wollongong, NSW, 2500, Australia

    M. S. A. Hossain, Jung Ho Kim & Shi Xue Dou

  3. Superconducting Wire Unit, National Institute for Materials Science, 1-13 Sakura, Tsukuba, Ibaraki, 305-0003, Japan

    Tsukasa Kiyoshi

  4. Korea Institute of Radiological and Medical Science, 139-709, Seoul, Korea

    Joonsun Kang

  5. Korea National University of Transportation, Chungju, 380-702, Korea

    Hyoungku Kang

  6. Department of Electrical Engineering, Kyungpook National University, Daegu, 702-701, Korea

    Se-Hee Lee

Authors
  1. Seyong Choi
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  2. M. S. A. Hossain
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  3. Jung Ho Kim
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  4. Shi Xue Dou
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  6. Byoung-Seob Lee
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  7. Mi-Sook Won
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  8. Tsukasa Kiyoshi
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  9. Joonsun Kang
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  10. Hyoungku Kang
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  11. Se-Hee Lee
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Correspondence to Hyoungku Kang or Se-Hee Lee.

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Choi, S., Hossain, M.S.A., Kim, J.H. et al. Magnetization Loss of MgB2 Superconducting Wire at Various Temperatures. J Supercond Nov Magn 26, 1531–1535 (2013). https://doi.org/10.1007/s10948-012-1866-9

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  • DOI: https://doi.org/10.1007/s10948-012-1866-9

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