FABRICATION AND TRANSPORT PROPERTIES OF In-DOPED Tl1212/Ag SINGLE-CORE DIP-COATED TAPES

Authors

  • M. I. Yusof Faculty of Applied Science, Universiti Teknologi Mara Shah Alam, Selangor Author
  • R. Omar Faculty of Applied Science, Universiti Teknologi Mara Shah Alam, Selangor Author
  • A. K. Yahya Faculty of Applied Science, Universiti Teknologi Mara Shah Alam, Selangor Author
  • Z. Awang Microwave Center, Faculty of Electrical Eng., Universiti Teknologi MARA Shah Alam Author

Abstract

Superconducting powder from high purity chemicals with nominal composition of Tl0.9Bi0.1Sr1.9In0.1Ca0.9Y0.1Cu2O7 were used to fabricate Tl-1212/Ag superconducting tapes using the dip-coating (DC) method. The tapes were subjected to reannealing under different heating conditions where some of the tapes were subjected to intermediate mechanical rolling. Results showed that annealing temperature and annealing duration, together with intermediate mechanical rolling (IR), could be optimized to increase Tc and 1212 phase formation and Jc of In-substituted Tl-1212/Ag tapes. The highest Jc was observed for the tape, which was reannealed at 910 °C for a total duration of 60 minutes and subjected to IR. The increased Jc could be due to the densification of superconducting core and increase in 1212 phase after thermomechanical treatment.

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Published

23-04-2007

Issue

Vol. 15 No. 1 (2007): Solid State Science and Technology

Section

Articles

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Copyright (c) 2007 Solid State Science and Technology

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