Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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Magnetism in Ni-W textured substrates for coated conductors

  • Song K. J. (Korea Electrotechnology Research Institute, Superconducing Materials Research Group) ;
  • Park Y. M. (Korea Electrotechnology Research Institute, Superconducing Materials Research Group) ;
  • Yang J. S. (Korea Electrotechnology Research Institute, Superconducing Materials Research Group) ;
  • Kim S. W. (Korea Electrotechnology Research Institute, Superconducing Materials Research Group) ;
  • Ko R. K. (Korea Electrotechnology Research Institute, Superconducing Materials Research Group) ;
  • Kim H. S. (Korea Electrotechnology Research Institute, Superconducing Materials Research Group) ;
  • Ha H. S (Korea Electrotechnology Research Institute, Superconducing Materials Research Group) ;
  • Oh S. S. (Korea Electrotechnology Research Institute, Superconducing Materials Research Group) ;
  • Park C. (School of Material Science & Engineering, Seoul National University) ;
  • Joo J. H. (The School of Matallurgical and Mechanical Eng., Sungkyunkwan University) ;
  • Kim C. J. (Nuclear Material Development Team, Korea Atomic Energy Research Institute)
  • Published : 2005.05.01
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Abstract

The magnetic properties of a series of both annealed (biaxially textured) and as-rolled (non-textured) Ni-xW alloy tapes with compositions x = 0,1,3, and 5 at.$\%$, were studied. Characterization methods included XRD analyses to investigate the biaxial cube texturing of the annealed Ni-W alloy tapes and studies of the magnetization M for both annealed and as-rolled Ni-W alloy tapes. Both the isothermal mass magnetizations M(H) of a series of samples at different fixed temperatures and M(T) in fixed field, employing a PPMS-9 (Quantum Design), were measured. The Ni-W alloys have shown much reduced ferromagnetism as W-content x increases. Both the saturation magnetization Msat and Curie temperature Tc decrease linearly with W-content x, and both Msat and Tc go to zero at critical concentration of Xc - 9.50 at. $\%$ W.

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