Synthesis of ceramic superconductors under low oxygen pressure

U. Balachandran, R. B. Poeppel, J. E. Emerson, M. T. Lanagan, C. A. Youngdahl, S. A. Johnson

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We have developed a process for synthesizing orthorhombic YBa2Cu3O x (123) superconducting powders by calcination of the precursor powder under reduced total oxygen pressure. Because a single calcination at 800°C for 4 h in flowing oxygen at a pressure of 2 mm Hg results in essentially phase-pure material, total calcination times have been drastically reduced. At liquid nitrogen temperature, sintered pellets made from this powder have critical current densities of ∼1000 A/cm2 in zero applied magnetic field.

Original languageEnglish (US)
Pages (from-to)185-188
Number of pages4
JournalBulletin of Materials Science
Volume14
Issue number2
DOIs
StatePublished - Apr 1991

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials

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