Vapor pressure scanning of oxygen nonstoichiometry in YBa{sub 2}Cu{sub 3}O{sub y}

Journal Article · Sun Oct 01 00:00:00 EDT 1995 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/0022-4596(95)80009-E· OSTI ID:237554

Guskov, V N; Tarasov, I V; Lazarev, V B ^[1]

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1. Kurnakov Institute of General and Inorganic Chemistry, Moscow (Russian Federation); and others

Oxygen nonstoichiometry in high-T{sub c} superconductor YBa{sub 2}Cu{sub 3}O{sub y} was studied by vapor pressure measurements in a closed volume in the temperature range 673 to 1173 K and oxygen pressure up to 1 atm. P-T-X phase relationships were derived from the vapor pressure scanning of the solidus surface. Analytical representation of isothermal, isobaric, and isoplethal (X{sub s} = const) sections of the P-T-X diagram is given. Partial thermodynamic functions of oxygen were calculated in the oxygen nonstoichiometry range 6.30 to 6.85.

• OSTI ID: 237554
• Journal Information: Journal of Solid State Chemistry, Vol. 119, Issue 1; Other Information: PBD: Oct 1995
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
YTTRIUM COMPOUNDS
PHASE STUDIES
BARIUM COMPOUNDS
CUPRATES
VAPOR PRESSURE
STOICHIOMETRY
PHASE DIAGRAMS