Characterization of YBa2Cu4O8 high temperature electrical properties and thermodynamic stability

B. S. Hong, Thomas O Mason

Research output: Contribution to journalArticle

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

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Partial pressure
partial pressure
Electric properties
Thermodynamic stability
electrical properties
Ferrosoferric Oxide
Oxygen
thermodynamics
Seebeck coefficient
Magnetite
oxygen
Seebeck effect
magnetite
Transport properties
transport properties
Decomposition
decomposition
conductivity
Temperature
temperature

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Characterization of YBa2Cu4O8 high temperature electrical properties and thermodynamic stability. / Hong, B. S.; Mason, Thomas O.

In: Journal of Materials Research, Vol. 6, No. 10, 10.1991, p. 2054-2058.

Research output: Contribution to journalArticle

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