Fabrication of High Jc Oxide Superconductors by a Melt Process and Their Critical Current Characteristics

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YBa2Cu3Ox powders were rapidly heated to the Y2O3 plus liquid region and quenched using copper hammers. The quenched plates were again heated to the Y2BaCuO5 plus liquid region and slow cooled in a thermal gradient. The process enabled uni-directional growth of the superconducting phase. Magnetization measurements revealed that magnetic properties of the melt processed samples could be understood in terms of Bean critical state model. The samples attained Jc values exceeding 104 A/cm2 at 77K and 1T. Ginat flux creep was not observed in such samples.

Original languageEnglish
Pages (from-to)584-587
Number of pages4
JournalJournal of the Japan Society of Powder and Powder Metallurgy
Issue number5
Publication statusPublished - 1989 Jan 1


ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

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