Strategic flat rolling of Ag/BSCCO-2223 tapes

Morten Storgård Nielsen, Jakob Ilsted Bech, Morten Eriksen, Niels Bay

    Research output: Contribution to journalConference articleResearchpeer-review

    Abstract

    In the process of single-step flat rolling of multifilament Ag/BSCCO-2223 wire to tape previous work has shown the optimum strategy giving maximum critical current density to be it balance between the length and width strain, so they are of equal size i.e. so, that the logarithmic strain ratio, LSR, reaches zero. In order to investigate the possible improvements by using multistep flat rolling, a new strategy to control the LSR in each individual step. i.e. to control the differential logarithmic strain ratio DLSR, has been investigated. The present paper shows that appropriate choice of the processing conditions may be used to reach DLSR = 0 in each step, and suggests dimensionless parameters applicable to transfer the results to other wire dimensions, The tapes produced engineering current densities of tip to 7.6 kA/cm(2) with an average of 7.2 k.AL/cm(2). (C) 2002 Elsevier Science B.V. All rights reserved.
    Original languageEnglish
    JournalPhysica C: Superconductivity and its Applications
    Volume372
    Pages (from-to)966-969
    ISSN0921-4534
    DOIs
    Publication statusPublished - 2002
    Event5th European Conference on Applied Superconductivity - Technical University of Denmark, Kgs. Lyngby, Denmark
    Duration: 26 Aug 200130 Aug 2001
    Conference number: 5

    Conference

    Conference5th European Conference on Applied Superconductivity
    Number5
    LocationTechnical University of Denmark
    CountryDenmark
    CityKgs. Lyngby
    Period26/08/200130/08/2001

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