Bi-2223/Ag HTS Drawing Process Study for Uniform Deformation I

Bi-2223/Ag 고온초전도선재의 가공균일성에 미치는 인발공정연구 I

  • Kim, S.C. (Nexans Korea Ltd.) ;
  • Ha, H.S. (Korea Electrotechnology Research Institute) ;
  • Oh, S.S. (Korea Electrotechnology Research Institute) ;
  • Lee, D.H. (Korea Electrotechnology Research Institute) ;
  • Yang, J.S. (Korea Electrotechnology Research Institute) ;
  • Ha, D.W. (Korea Electrotechnology Research Institute) ;
  • Kwon, Y.K. (Korea Electrotechnology Research Institute) ;
  • Han, L.Y. (Nexans Korea Ltd.) ;
  • Lee, J.G. (Nexans Korea Ltd.)
  • Published : 2002.04.25

Abstract

PIT method which is used at fabricating Bi-2223/Ag HTS wire includes a drawing process, conventional deformation method. Drawing of meta1(Ag) and ceramic (BiSrCaCuO) composite is also difficult and significant for uniform deformation. In this paper, parameters of uniform deformation was studied at Bi-2223/ Ag multifilamentary HTS wire. Powder and rod as a starting precursor was compared at 55 filament and 54 filament Bi-2223/Ag HTS wire, respectively. Micro-hardness and area COV of the filaments was also evaluated when the diameters were decreased through drawing operations.

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