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  • Ag/Bi-2223 tape  (1)
  • High-T c superconductor  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Long multifilament Bi-2223 Ag-sheathed superconducting tapes and solenoids (1994)
    Springer
    Journal of superconductivity 7 (1994), S. 829-833 
    Details
    ISSN: 1572-9605
    Keywords: High-T c superconductor ; multifilament tape ; critical bend strain ; superconducting solenoid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract Multifilament Ag-sheathed BiPbSrCaCuO (2223) superconducting tapes containing 49 filaments were fabricated by the powder-in-tube route and the roll-anneal process. The transport critical current densityJ c was 1.3×104 A cm−2 at 77 K and 7×104 A cm−2 at 4.2 K in self-field. A 12-m-long tape was used to construct superconducting solenoids (50, 28, and 14 mm internal diameters) generating dc fields 380–1070 G at 4.2 K. Measurements of the variation ofJ c with field (0–1.6 T) and bend strain (0–5%) are used to explain the performance of the solenoids. The critical bend strain of tapes was about 1.5%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01320878
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Intrinsic critical current of Ag-clad (Bi,Pb)2Sr2Ca2Cu3O z tapes (1994)
    Springer
    Journal of superconductivity 7 (1994), S. 809-812 
    Details
    ISSN: 1572-9605
    Keywords: Critical current ; Ag/Bi-2223 tape ; flux creep ; ac susceptibility
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract True zero-field critical current densityJ c of a well-characterized BPSCCO/Ag tape has been determined by means of high-resolution ac susceptibility in the temperature range 77–110 K. The resultant values (30,000 A/cm2 at 77 K) agree well with the transportJ c of the same tape. Because of a very thin BPSCCO, the coreJ c determined from the imaginary part of the ac susceptibility is nearly the same as the zero field one. AllJ c 's follow the same (1-T/T c )n withn=1.45 dependence.J c shows an approximateH −0.5 field dependence over the explored temperature range. Accordingly, the variations ofJ c withT andH seem to be determined by the flux creep.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01320874
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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