Preparation of orthorhombic Ba sub 2 YCu sub 3 O sub 7 powder by single-step calcining

BaCO sub 3 , Y sub 2 O sub 3 , and CuO are precursor materials. Use of a vacuum during initial calcination stages promotes complete decomposition of the carbonate. An O sub 2 atm during later calcination stages ensures proper oxidation to Ba sub 2 YCu sub 3 O sub 7 .

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Bibliographic Details
Published in:Journal of the American Ceramic Society 1990-02, Vol.73 (2), p.435-438
Main Authors: Spann, Joseph R, Lloyd, Isabel K
Format: Article
Language:English
Subjects:
360202 > Ceramics, Cermets, & Refractories-- Structure & Phase Studies
656100 > Condensed Matter Physics-- Superconductivity
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CALCINATION
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COHERENT SCATTERING
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DECOMPOSITION
DIFFRACTION
ELEMENTS
MATERIALS SCIENCE
NONMETALS
ORTHORHOMBIC LATTICES
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PLASMA
POWDERS
PYROLYSIS
SCATTERING
SOLID-STATE PLASMA
SYNTHESIS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS 360201 > Ceramics, Cermets, & Refractories-- Preparation & Fabrication
YTTRIUM OXIDES
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Description
Summary:BaCO sub 3 , Y sub 2 O sub 3 , and CuO are precursor materials. Use of a vacuum during initial calcination stages promotes complete decomposition of the carbonate. An O sub 2 atm during later calcination stages ensures proper oxidation to Ba sub 2 YCu sub 3 O sub 7 .
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1151-2916.1990.tb06531.x