Phase equilibria and crystal chemistry in the quaternary system Ba-Sr-Y-Cu-O in air

Journal Article · Wed Mar 01 04:00:00 EST 1989 · Journal of the American Ceramic Society; (USA)

DOI:https://doi.org/10.1111/j.1151-2916.1989.tb06142.x· OSTI ID:5247443

Roth, R S; Rawn, C J; Whitler, J D; Chiang, C K; Wong-Ng, W K ^[1]

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1. Ceramics Div., National Institute of Standards and Technology, Gaithersburg, MD (US)

The authors discuss studies in the Sr-Y-Cu-O and Ba-Sr-Y-Cu-O systems which revealed that Sr will substitute for Ba in (Ba,Sr)/sub 2/YCu/sub 3/O/sub 6+chi/ up to about 60%. There are no ternary compounds in the Sr-Y-Cu-O system equivalent to the three ternary phases in the Ba system. A new binary phase, Sr/sub 14/Cu/sub 24/C/sub 41/ (CuO{approx}63.158 mol%), was found which forms a solid solution with Y/sub 2/O/sub 3/ to a Sr:Y ratio of approximately 2:1. This phase can also incorporate considerable amounts of Ba and Ca and many other large ions.

• OSTI ID: 5247443
• Journal Information: Journal of the American Ceramic Society; (USA), Journal Name: Journal of the American Ceramic Society; (USA) Vol. 72:3; ISSN JACTA; ISSN 0002-7820
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
ALLOY SYSTEMS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
DISPERSIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
MIXTURES
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
QUATERNARY ALLOY SYSTEMS
SOLID SOLUTIONS
SOLUTIONS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTIVITY
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES