High critical currents in Ag-BSCCO(2223) tapes: Are the grain boundaries really 'weak-links'?

SM Cassidy, LF Cohen, MN Cuthbert, JR Laverty, GK Perkins, AD Caplin, SX Dou, YC Guo, HK Liu, F. Liu, EL Wolf

Research output: Contribution to journalArticle

Abstract

The remarkable improvement of the superconducting properties of polycrystalline BSCCO(2223) when processed into Ag-clad tapes has been investigated with magnetisation measurements. The tape bulk critical current density has been compared directly with the intragrain critical current of the crystalline powder extracted from the tapes. The results show that two factors contribute to the excellent tape performance: Intragranular flux pinning is much stronger than might be expected from single crystal data, and the grain boundaries display no evidence of being 'weak-links'.

Original languageEnglish (US)
Pages (from-to)503-506
Number of pages4
JournalJournal of Alloys and Compounds
Volume195
Issue numberC
DOIs
StatePublished - May 10 1993

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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    Cassidy, SM., Cohen, LF., Cuthbert, MN., Laverty, JR., Perkins, GK., Caplin, AD., Dou, SX., Guo, YC., Liu, HK., Liu, F., & Wolf, EL. (1993). High critical currents in Ag-BSCCO(2223) tapes: Are the grain boundaries really 'weak-links'? Journal of Alloys and Compounds, 195(C), 503-506. https://doi.org/10.1016/0925-8388(93)90787-N