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Dependence of the Angular Anisotropy of the Critical Current Density on Texture in Silver-Sheathed Bi-2223 Tapes

  • J. O. Willis
  • J. Y. Coulter
  • E. J. Peterson
  • G. F. Chen
  • L. L. Daemen
  • L. N. Bulaevskii
  • M. P. Maley
  • G. N. Riley
  • W. L. Carter
  • S. E. Dorris
  • M. T. Lanagan
  • B. C. Prorok
Part of the An International Cryogenic Materials Conference Publication book series (ACRE, volume 40)

Abstract

The dependence of the critical current density Jc on the direction of an applied magnetic field B with respect to the normal to a Bi-2223 silver sheathed tape was determined for several mono- and multifilament tapes at both high and low temperatures. It is found that the angular dependence of Jc can be described by Jc⊥ (Bcos(φ)), where Jc⊥(B) is the field dependence for B normal to the tape plane, and φ is the angle from the normal. However, as φ approaches 90° (parallel to the tape plane), Jc deviates from this relation because of residual grain misorientation. A model for this has been developed which fits the data well and shows correlation with x-ray rocking curve estimates of the grain orientation distribution width.

Keywords

Critical Current Density Grain Orientation Tape Rolling Transport Critical Current Density Flux Vortex 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • J. O. Willis
    • 1
  • J. Y. Coulter
    • 1
  • E. J. Peterson
    • 1
  • G. F. Chen
    • 1
    • 2
  • L. L. Daemen
    • 1
  • L. N. Bulaevskii
    • 1
  • M. P. Maley
    • 1
  • G. N. Riley
    • 3
  • W. L. Carter
    • 3
  • S. E. Dorris
    • 4
  • M. T. Lanagan
    • 4
  • B. C. Prorok
    • 4
  1. 1.Superconductivity Technology CenterLos Alamos National LaboratoryLos AlamosUSA
  2. 2.Dept. of Mechanical EngineeringUniversity of WashingtonSeattleUSA
  3. 3.American Superconductor CorporationWestboroughUSA
  4. 4.Argonne National LaboratoryArgonneUSA

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