Recent developments in fabrication and properties of Ag-clad BSCCO conductors

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Long-length mono- and multifilament Ag-clad BSCCO (Bi-Sr-Ca-Cu-O) superconductors with consistent current transport properties were fabricated by the powder-in-tube method. I{sub c} of 42 A was recorded in short lengths of 37 filament conductors. J{sub c} up to 12,000 A/cm{sup 2} was observed at 77 K in 124-m-long monocore andd 850-m-long multifilament conductors. A high-{Tc} magnet, fabricated from 770 m of monofilament conductor, generated a high field of {approx}1 T at 4.2 K in a field of {approx}20 T. In-situ strain tests showed that multifilament conductors have better strain tolerance than monofilament conductors. In-situ bending of the monofilament conductors indicate that ... continued below

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11 p.

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Jammy, R.; Iyer, A. N.; Huang, J. Y.; Chudzik, M.; Balachandran, U. & Haldar, P. February 1996.

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Long-length mono- and multifilament Ag-clad BSCCO (Bi-Sr-Ca-Cu-O) superconductors with consistent current transport properties were fabricated by the powder-in-tube method. I{sub c} of 42 A was recorded in short lengths of 37 filament conductors. J{sub c} up to 12,000 A/cm{sup 2} was observed at 77 K in 124-m-long monocore andd 850-m-long multifilament conductors. A high-{Tc} magnet, fabricated from 770 m of monofilament conductor, generated a high field of {approx}1 T at 4.2 K in a field of {approx}20 T. In-situ strain tests showed that multifilament conductors have better strain tolerance than monofilament conductors. In-situ bending of the monofilament conductors indicate that their irreversible strain limit increases with decreasing superconductor/Ag ratio. Superconducting joints and multilayer Ag/superconductor composites have been fabricated by chemical etching. Typical I{sub c} through such joints was 23 A, or {approx}70% of that carried by normal monofilament tapes and {approx}60% of that carried by multifilament tapes. Preliminary results with multilayer tapes show that continuous Ag reinforcement of the BSCCO core improves strain tolerance of the tapes so they can carry 90% of their initial I{sub 2} at 1% bend strain ins pite of a higher superconductor/Ag ratio than unreinforced tapes.

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11 p.

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INIS; OSTI as DE96009052

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  • Annual meeting and exhibition of the Minerals, Metals and Materials Society (TMS), Anaheim, CA (United States), 4-8 Feb 1996

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  • Other: DE96009052
  • Report No.: ANL/ET/CP--87395
  • Report No.: CONF-960202--21
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 218856
  • Archival Resource Key: ark:/67531/metadc668157

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  • February 1996

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  • June 29, 2015, 9:42 p.m.

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  • Dec. 7, 2015, 4:43 p.m.

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Jammy, R.; Iyer, A. N.; Huang, J. Y.; Chudzik, M.; Balachandran, U. & Haldar, P. Recent developments in fabrication and properties of Ag-clad BSCCO conductors, article, February 1996; Illinois. (digital.library.unt.edu/ark:/67531/metadc668157/: accessed June 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.