Characterization of YBa2Cu4O8 high temperature electrical properties and thermodynamic stability

B. S. Hong, Thomas O Mason

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

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 YBa2Cu4O8 were determined. YBa2Cu4O8 behaves like the intrinsically mixed-valent compound, magnetite (Fe3O4), with small variations in electrical properties with changes in oxygen partial pressure. The decomposition boundary to YBa2Cu3O6+y (or YBa2Cu3.5O7.5±z) and CuO occurs at log(pO(2), atm) = -1.24 × 104/T(K) + 11.01 (773 ≤ T(K) ≤ 1073).

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

ASJC Scopus subject areas

  • Materials Science(all)

Fingerprint Dive into the research topics of 'Characterization of YBa<sub>2</sub>Cu<sub>4</sub>O<sub>8</sub> high temperature electrical properties and thermodynamic stability'. Together they form a unique fingerprint.

Cite this