Characterization of YBa2Cu4O8high temperature electrical properties and thermodynamic stability

B. S. Hong; T. O. Mason

doi:10.1557/JMR.1991.2054

Characterization of YBa₂Cu₄O₈high temperature electrical properties and thermodynamic stability

B. S. Hong, T. O. Mason

Materials Science and Engineering

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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 language	English (US)
Pages (from-to)	2054-2058
Number of pages	5
Journal	Journal of Materials Research
Volume	6
Issue number	10
DOIs	https://doi.org/10.1557/JMR.1991.2054
State	Published - Oct 1991

ASJC Scopus subject areas

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

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title = "Characterization of YBa2Cu4O8high temperature electrical properties and thermodynamic stability",

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).",

author = "Hong, {B. S.} and Mason, {T. O.}",

note = "Funding Information: This work was supported by and, in part, conducted in facilities of the Northwestern University Materials Research Center under National Science Foundation Grant No. DMR-8821571.",

year = "1991",

month = oct,

doi = "10.1557/JMR.1991.2054",

language = "English (US)",

volume = "6",

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journal = "Journal of Materials Research",

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TY - JOUR

T1 - Characterization of YBa2Cu4O8high temperature electrical properties and thermodynamic stability

AU - Hong, B. S.

AU - Mason, T. O.

N1 - Funding Information: This work was supported by and, in part, conducted in facilities of the Northwestern University Materials Research Center under National Science Foundation Grant No. DMR-8821571.

PY - 1991/10

Y1 - 1991/10

N2 - 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).

AB - 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).

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Characterization of YBa₂Cu₄O₈high temperature electrical properties and thermodynamic stability

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