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Reactive sintering of Bi2Sr2CaCu2Ox superconductors

  • Y. F. Li
  • , M. E. Loomans
  • , K. C. Goretta
  • , S. E. Dorris
  • , M. T. Lanagan
  • , R. B. Poeppel
  • , J. J. Wenzlaff
  • , P. M. Winandy
  • , C. A. Youngdahl
  • , U. Balachandran
  • , P. Kostic

Research output: Contribution to journalArticlepeer-review

Abstract

Three phase assemblages were used to produce Bi2Sr2CaCu2Ox (2212) during sintering: a mixture of 20% Ca-rich 2212+80%2212, partially synthesized 2212, and Bi2Sr2CuOx (2201)+(1/2 Ca2 CuO3+1/2 CuO) (denoted 0011). The mixture of 2201+0011 produced highly pure 2212 within 50 h of heating in air at ≈850°C. Ag tubes were filled with a mixture of 2201+0011 and worked into tapes by a powder-in-tube process. Heat treatments produced microstructures consisting of small, highly textured 2212 grains. Tc values were ≈70K. Transport Jc values at 4.2K were ≈104 A/cm2.

Original languageEnglish (US)
Pages (from-to)1163-1167
Number of pages5
JournalJournal of Electronic Materials
Volume23
Issue number11
DOIs
StatePublished - Nov 1994

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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