Critical current density, irreversibility line, and flux creep activation energy in silver-sheathed Bi{sub 2}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub x} superconducting tapes [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 1992.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: 4 pages : digital, PDF file
Additional Creators:: Argonne National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

Transport data, magnetic hysteresis and flux creep activation energy experimental results are presented for silver-sheathed high-{Tc} Bi₂Sr₂Ca₂Cu₃Oₓ superconducting tapes. The 110 K superconducting phase was formed by lead doping in a Bi-Sr-Ca-Cu-0 system. The transport critical current density was measured at 4.0 K to be 0.7 × 10⁵ A/cm² (the corresponding critical current is 74 A) at zero field and 1.6 × 10⁴ A/cm² at 12 T for H∥ab. Excellent grain alignment in the a-b plane was achieved by a short-melting method, which considerably improved the critical current density and irreversibility line. Flux creep activation energy as a function of current is obtained based on the magnetic relaxation measurements.

Report Numbers:

E 1.99:anl/cp--77533
E 1.99: conf-920802--30
conf-920802--30
anl/cp--77533

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Note:

Published through SciTech Connect.
08/01/1992.
"anl/cp--77533"
" conf-920802--30"
"DE93002998"
Applied superconductivity conference,Chicago, IL (United States),23-28 Aug 1992.
Smith, M.; Liu, H.K.; Sengupta, S.; Shi, D.; Goodrich, L.F.; Wang, Z.; Dou, S.X.; Guo, Y.C.

Funding Information:

W-31109-ENG-38
FG02-90ER45427

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