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 language | English |
|---|---|
| Pages (from-to) | 2054-2058 |
| Number of pages | 5 |
| Journal | Journal of Materials Research |
| Volume | 6 |
| Issue number | 10 |
| Publication status | Published - Oct 1991 |
ASJC Scopus subject areas
- Materials Science(all)
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Hong, B. S., & Mason, T. O. (1991). Characterization of YBa2Cu4O8 high temperature electrical properties and thermodynamic stability. Journal of Materials Research, 6(10), 2054-2058.