Synthesis of YBa sub 2 Cu sub 3 O sub 7 minus x from a soluble Y-Ba-Cu precursor

Journal Article · Mon Dec 04 04:00:00 EST 1989 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.102296· OSTI ID:5118336

Rupich, M W; Lagos, B; Hachey, J P ^[1]

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1. EIC Laboratories, Inc., Norwood, Massachusetts 02062 (US)

The synthesis of the superconducting YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} from a soluble, molecular precursor with the composition Cu{sub 3}O{sub 3}Ba{sub 2}Y(meOEt){sub 7} (meOEt is 2-methoxyethoxide) is described. The precursor was synthesized from the reaction of a soluble copper (II) oxide polymer with alkoxides of barium and yttrium. Pyrolysis and oxidation of the precursor resulted in the formation of oriented sheets of the orthorhombic YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} phase. The orientation in the bulk YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} is believed to result from the presence of linear Cu-O-Cu-O chains in the precursor. Bulk YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}}, prepared from the precursor, had an onset transition temperature of 92.5 K and zero resistance at 89.5 K.

• OSTI ID: 5118336
• Journal Information: Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 55:23; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
COPPER COMPOUNDS
COPPER OXIDES
DATA
DECOMPOSITION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPERIMENTAL DATA
INFORMATION
NUMERICAL DATA
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PEROVSKITES
PHYSICAL PROPERTIES
POLYMERS
PYROLYSIS
SUPERCONDUCTIVITY
SYNTHESIS
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES