Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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Fabrication of $MgB_2$ tape with metal powder addition

금속분말이 첨가된 $MgB_2$ 선재의 제조 및 특성

  • 고재웅 (한국기계연구원 신기능재료연구본부) ;
  • 유재무 (한국기계연구원 신기능재료연구본부) ;
  • 김영국 (한국기계연구원 신기능재료연구본부) ;
  • 정국채 (한국기계연구원 신기능재료연구본부) ;
  • 유상임 (서울대학교 재료공학부) ;
  • ;
  • Published : 2006.03.01
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Abstract

The $MgB_2$ tapes with several metal powder addition were fabricated by PIT method with or without heat treatment. The $J_c$ value of $5.600A/cm^2$ and $16.000A/cm^2$ at 4.2 K and 5 T were obtained for the $MgB_2$ tape and 10 vol % of Cu added $MgB_2$ tape without heat treatment respectively. The $J_c$ value of $8.000A/cm^2$ and $35,000A/cm^2$ at 4.2 K and 5 T were obtained for the $MgB_2$ tape and 10 vol. % of Al added $MgB_2$ tape with heat treatment, respectively. The $J_c-B$ curve shows enhancement in $J_c$ under magnetic field. which suggests enhancement in workability and grain connectivity with several metal powder addition.

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References

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