Characterization of YBa2Cu4O8high temperature electrical properties and thermodynamic stability

B. S. Hong, T. O. Mason

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Via in situ electrical property measurements (conductivity, Seebeck coefficient) over the temperature range 500–800 °C and oxygen partial pressure range 10-4-1 atm, the equilibrium transport properties and stability range of YBa2Cu408were determined. YBa2Cu408 behaves like the intrinsically mixed-valent compound, magnetite (Fe304), with small variations in electrical properties with changes in oxygen partial pressure. The decomposition boundary to YBa2Cu306+y(or YBa2Cu3.507.5±z) and CuO occurs at log(po2, atm) = -1.24 x 104/T(K) + 11.01(773 < T(K) < 1073).

Original languageEnglish (US)
Pages (from-to)2054-2058
Number of pages5
JournalJournal of Materials Research
Volume6
Issue number10
DOIs
StatePublished - Oct 1991

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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