Advances in fabrication of mono- and multifilament Ag-CLAD BSCCO superconductors

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Fabricating long lengths of robust and high-quality conductors is imperative for various applications of high-{Tc} superconductors. Long lengths of mono- and multifilament Ag-clad Bi-Sr-Ca-Cu-0 conductors have been fabricated by the powder-in-tube technique. High values for critical current density (J{sub c}) have been achieved in both short- and long-length conductors. J{sub c} values up to 12,000 A/cm{sup 2} have been achieved in an 850-m-long multifilament conductor. Pancake-shaped coils and test magnets fabricated from long-length conductors were characterized at various temperatures and applied magnetic fields. A magnet containing 770 m of high-{Tc} conductor generated a record high field of {approx} 1 T ... continued below

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7 p.

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Balachandran, U.; Iyer, A.N.; Jammy, R.; Haldar, P.; Hoehn, J.G. Jr. & Suenaga, M. July 1, 1995.

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Fabricating long lengths of robust and high-quality conductors is imperative for various applications of high-{Tc} superconductors. Long lengths of mono- and multifilament Ag-clad Bi-Sr-Ca-Cu-0 conductors have been fabricated by the powder-in-tube technique. High values for critical current density (J{sub c}) have been achieved in both short- and long-length conductors. J{sub c} values up to 12,000 A/cm{sup 2} have been achieved in an 850-m-long multifilament conductor. Pancake-shaped coils and test magnets fabricated from long-length conductors were characterized at various temperatures and applied magnetic fields. A magnet containing 770 m of high-{Tc} conductor generated a record high field of {approx} 1 T at 4.2 K in a background field of {approx} 20 T. In-situ tensile and bending characteristics of both mono- and multifilament conductors have also been studied. Multifilament conductors exhibited better axial strain tolerance ({var_epsilon} {approx} 1%) than that of monofilament conductor ({var_epsilon} {approx} 0.2%), while retaining 90% of their initial critical current. An analysis of the results is presented, along with effects of parameters such as thickness, superconductor/Ag ratio, and microstructural details.

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7 p.

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OSTI as DE96002754

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  • CEC/ICMC `95: cryogenic engineering conference and international cryogenic materials conference, Columbus, OH (United States), 17-21 Jul 1995

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  • Other: DE96002754
  • Report No.: ANL/ET/CP--85329
  • Report No.: CONF-950722--13
  • Grant Number: W-31-109-ENG-38;AC02-76CH00016
  • Office of Scientific & Technical Information Report Number: 147715
  • Archival Resource Key: ark:/67531/metadc619851

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  • July 1, 1995

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  • June 16, 2015, 7:43 a.m.

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  • Dec. 14, 2015, 11:51 a.m.

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Balachandran, U.; Iyer, A.N.; Jammy, R.; Haldar, P.; Hoehn, J.G. Jr. & Suenaga, M. Advances in fabrication of mono- and multifilament Ag-CLAD BSCCO superconductors, article, July 1, 1995; Illinois. (digital.library.unt.edu/ark:/67531/metadc619851/: accessed November 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.