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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of superconductivity 11 (1998), S. 77-78 
    ISSN: 1572-9605
    Keywords: T1(I223) ; texture ; tapes ; electrophoresis ; critical current
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract The conventional powder-in-tube technique does not allow to produce textured Tl(1223) tapes. An electrophoretic deposition technique was used to produce uniform layers of controlled thickness on Ag substrates by a simple and reproducible procedure. A high degree of texture, comparable with the one generally observed for Bi-based tapes was obtained thanks to the appropriate grain morphology, by simply alternating deposition and uniaxial pressing. After annealing, critical current densities of 11'000 A/cm2 were reached.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of superconductivity 11 (1998), S. 23-26 
    ISSN: 1572-9605
    Keywords: Tl(1223) ; high-pressure synthesis ; superconducting tapes ; critical current density
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract Different methods to prepare superconducting mono- and multifilamentary T1(I223) tapes were developed. High-purity ceramics could be produced by ex-situ or in-situ reaction under a high isostatic gas pressure. Tapes prepared by the PIT method and an in-situ reaction carried out close to the melting point of the oxide were relatively dense and textured. Interesting results were obtained for samples where part of the oxygen atoms in Tl(1223) had been substituted by fluorine. Critical current densities up to 20'000 A/cm2 (77 K, 0 T) were reached for tapes produced by the PIT method. Well textured samples were obtained by electrophoretic deposition, the deposited Tl(1223) grains being produced by a synthesis involving substantial melting.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of superconductivity 11 (1998), S. 109-110 
    ISSN: 1572-9605
    Keywords: Tl(1223) ; high-pressure synthesis ; grain morphology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract The influence of changes in the nominal composition and preparation conditions on the formation of Tl(1223) under a high isostatic gas pressure was studied. Optimization of the cation substitution allowed to increase the phase purity, whereas substitution of small amounts of oxygen by fluorine decreased the formation temperature of the Tl(1223) phase and extended the temperature range favorable for grain growth. A two-step reaction involving substantial melting produced well shaped, plate-like grains.
    Type of Medium: Electronic Resource
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  • 4
    Title: Illustrated mathematics : visualization of mathematical objects with Mathematica + CD-ROM
    Author: Gloor, Olover
    Contributer: Amrhein, Beatrice , Maeder, Roman E.
    Publisher: New York; Telos, Santa Clara :Springer,
    Year of publication: 1995
    Pages: 64 S.
    Type of Medium: Book
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