Processing and properties of bulk BiSrCaCuO superconductors

K. C. Goretta, M. T. Lanagan, T. J. Brent, S. E. Dorris, J. Joo, J. J. Picciolo, R. A. Shearer, J. P. Singh, S. Wasylenko, P. M. Winandy, X. W. Wang, C. A. Youngdahl, R. B. Poeppel, D. J. Miller, T. G. Holesinger, P. Kostic, Nan Chen

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Abstract

We fabricated bulk Bi2Sr2CaCu2Ox (2212) bars by directional solidification and bulk (Bi,Pb)2Sr2Ca2Cu3Ox (2223) bars by cold isostatic pressing and sintering or by sinter forging. Tc values were 92 K for the 2212 and 106-110 K for the 2223. Maximum transport Jc values at 77 K were 450 A/cm2 for the 2212, 1000 A/cm2 for the pressed and sintered 2223, and 8000 A/cm2 for the sinter-forged 2223. The 2212 bars exhibited the lowest strength and fracture toughness, and the sinter-forged 2223 the highest strength and toughness.

Original languageEnglish (US)
Pages (from-to)411-415
Number of pages5
JournalApplied Superconductivity
Volume2
Issue number6
DOIs
StatePublished - Jun 1994

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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