High-temperature thermodynamics of oxygen equilibrium of solid solutions YBa2Cu3-xZnxO6+δ with gas phase

E. B. Mitberg; M. V. Patrakeev; I. A. Leonidov; A. A. Lakhtin; V. L. Kozhevnikov; K. R. Poeppelmeier

doi:10.1016/S0925-8388(98)00577-5

High-temperature thermodynamics of oxygen equilibrium of solid solutions YBa₂Cu_3-xZn_xO_6+δ with gas phase

E. B. Mitberg, M. V. Patrakeev, I. A. Leonidov, A. A. Lakhtin, V. L. Kozhevnikov, K. R. Poeppelmeier^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The equilibrium oxygen content was measured in the solid solution YBa₂Cu_3xZn_xO_6+δ, where x=0, 0.1, 0.2, 0.3, in the temperature range 600-825°C and oxygen pressure between 10^-5 and 1.0 atm. The concentration dependencies of the partial molar enthalpy ΔH°(δ) and entropy ΔS°(δ) of oxygen were determined. A decrease of both ΔH°(δ) and ΔS°(δ) at δ<0.2 is observed. This behavior is interpreted as evidence that participation of the apex O4 oxygen in the gas↔solid equilibrium occurs with exhaustion of the O1 and O5 oxygen positions in the basal plane.

Original language	English (US)
Pages (from-to)	98-102
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	274
Issue number	1-2
DOIs	https://doi.org/10.1016/S0925-8388(98)00577-5
State	Published - Jun 26 1998

Funding

The research described in this publication was made possible in part by the U.S. Civilian Research and Development Foundation Award RC1-215. One of the authors (E.B.M.) wishes to thank the Open Society Institute for support of this work through grants A96-678 and A97-1839. This work is supported also by the National Science Foundation through the Science and Technology Center for Superconductivity under Grant DMR 91-20000.

Keywords

Cuprate
High temperature
Oxygen
Thermodynamics

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/S0925-8388(98)00577-5

Cite this

@article{15c66adfa0a845b6b5f215bfb4628ea0,

title = "High-temperature thermodynamics of oxygen equilibrium of solid solutions YBa2Cu3-xZnxO6+δ with gas phase",

abstract = "The equilibrium oxygen content was measured in the solid solution YBa2Cu3xZnxO6+δ, where x=0, 0.1, 0.2, 0.3, in the temperature range 600-825°C and oxygen pressure between 10-5 and 1.0 atm. The concentration dependencies of the partial molar enthalpy ΔH°(δ) and entropy ΔS°(δ) of oxygen were determined. A decrease of both ΔH°(δ) and ΔS°(δ) at δ<0.2 is observed. This behavior is interpreted as evidence that participation of the apex O4 oxygen in the gas↔solid equilibrium occurs with exhaustion of the O1 and O5 oxygen positions in the basal plane.",

keywords = "Cuprate, High temperature, Oxygen, Thermodynamics",

author = "Mitberg, {E. B.} and Patrakeev, {M. V.} and Leonidov, {I. A.} and Lakhtin, {A. A.} and Kozhevnikov, {V. L.} and Poeppelmeier, {K. R.}",

note = "Funding Information: The research described in this publication was made possible in part by the U.S. Civilian Research and Development Foundation Award RC1-215. One of the authors (E.B.M.) wishes to thank the Open Society Institute for support of this work through grants A96-678 and A97-1839. This work is supported also by the National Science Foundation through the Science and Technology Center for Superconductivity under Grant DMR 91-20000.",

year = "1998",

month = jun,

day = "26",

doi = "10.1016/S0925-8388(98)00577-5",

language = "English (US)",

volume = "274",

pages = "98--102",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

number = "1-2",

}

TY - JOUR

T1 - High-temperature thermodynamics of oxygen equilibrium of solid solutions YBa2Cu3-xZnxO6+δ with gas phase

AU - Mitberg, E. B.

AU - Patrakeev, M. V.

AU - Leonidov, I. A.

AU - Lakhtin, A. A.

AU - Kozhevnikov, V. L.

AU - Poeppelmeier, K. R.

N1 - Funding Information: The research described in this publication was made possible in part by the U.S. Civilian Research and Development Foundation Award RC1-215. One of the authors (E.B.M.) wishes to thank the Open Society Institute for support of this work through grants A96-678 and A97-1839. This work is supported also by the National Science Foundation through the Science and Technology Center for Superconductivity under Grant DMR 91-20000.

PY - 1998/6/26

Y1 - 1998/6/26

N2 - The equilibrium oxygen content was measured in the solid solution YBa2Cu3xZnxO6+δ, where x=0, 0.1, 0.2, 0.3, in the temperature range 600-825°C and oxygen pressure between 10-5 and 1.0 atm. The concentration dependencies of the partial molar enthalpy ΔH°(δ) and entropy ΔS°(δ) of oxygen were determined. A decrease of both ΔH°(δ) and ΔS°(δ) at δ<0.2 is observed. This behavior is interpreted as evidence that participation of the apex O4 oxygen in the gas↔solid equilibrium occurs with exhaustion of the O1 and O5 oxygen positions in the basal plane.

AB - The equilibrium oxygen content was measured in the solid solution YBa2Cu3xZnxO6+δ, where x=0, 0.1, 0.2, 0.3, in the temperature range 600-825°C and oxygen pressure between 10-5 and 1.0 atm. The concentration dependencies of the partial molar enthalpy ΔH°(δ) and entropy ΔS°(δ) of oxygen were determined. A decrease of both ΔH°(δ) and ΔS°(δ) at δ<0.2 is observed. This behavior is interpreted as evidence that participation of the apex O4 oxygen in the gas↔solid equilibrium occurs with exhaustion of the O1 and O5 oxygen positions in the basal plane.

KW - Cuprate

KW - High temperature

KW - Oxygen

KW - Thermodynamics

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