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

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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
Issue number11
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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