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Optimization of ternary LRE-Ba-Cu-O materials for use at liquid oxygen temperature

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    0102486 - FZU-D 20040537 RIV NL eng J - Journal Article
    Muralidhar, M. - Sakai, N. - Jirsa, Miloš - Murakami, M. - Koshizuka, N.
    Optimization of ternary LRE-Ba-Cu-O materials for use at liquid oxygen temperature.
    [Optimalizace ternárních materiálů LRE-Ba-Cu-O pro použití při teplotě kapalného kyslíku.]
    Physica. C. 412-414, - (2004), s. 575-579. ISSN 0921-4534. E-ISSN 1873-2143
    Institutional research plan: CEZ:AV0Z1010914
    Keywords : melt-textured superconductors * critical current density * levitation * LRE-Ba 2Cu3O7 * NEG-123 * SEG-123 * liquid oxygen
    Subject RIV: BM - Solid Matter Physics ; Magnetism
    Impact factor: 1.072, year: 2004

    Contamination by Zr of small ball-milled Gd-211 particles, in combination with LRE/Ba solid solution pinning disorder and optimum oxygenation is efficient in enhancing superconducting currents in all ternary LRE-123 compounds. Besides (Nd,Eu,Gd)-123, also in (Sm,Eu,Gd)-123 and (Nd,Sm,Gd)-123 the superconducting currents were sufficiently high for levitation experiments up to 90K

    Znečištění malých částic Gd-211 zirkonem, spolu s upínací strukturou částic pevného roztoku LRE/Ba a optimálním okysličením zvyšuje kritické proudy ve všech LRE- Ba2Cu3O7 materiálech až do teplot okolo 90 K, umožňujíce levitaci s chlazením kapalným kyslíkem
    Permanent Link: http://hdl.handle.net/11104/0009834
     
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