Potentials of RE-Ba2Cu3Oy in the silver base technology

Muralidhar Miryala, Naomichi Sakai, T. Machi, I. Hirabayashi, S. Tanaka

Research output: Contribution to journalArticle

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Abstract

With the aim to develop low cost, high performance superconducting thick films, we tested a new method, starting from a mixture of Er2BaO4, BaCuO2, and CuO in the stoichiometric Er-123 ratio. Thick films were prepared by the screen printing technique, spreading the mixture paste on silver and MgO single-crystalline substrates processed then in Ar-1% O2 atmosphere. Using a double-step annealing process, we obtained good quality Er-123 thick films on silver substrates, with Tc (onset) 92 K and transition width <1.5 K. Formation of large flat grains was observed by scanning electron microscope. Transmission electron microscopy observations showed clean and sharp interfaces between 123 phase and silver substrate.

Original languageEnglish
Pages (from-to)314-319
Number of pages6
JournalPhysica C: Superconductivity and its Applications
Volume463-465
Issue numberSUPPL.
DOIs
Publication statusPublished - 2007 Oct 1
Externally publishedYes

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Keywords

  • Electron probe micro analysis
  • ErBaO
  • Quench experiments
  • SEM and TEM
  • Thick films
  • XRD

ASJC Scopus subject areas

  • Condensed Matter Physics

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