Published 1991 | Version v1
Book Metadata-only

Oxidation/reduction melting reactions in the system BaO-Y2O3-CuO(x). I - Methods

Creators

Description

A unified experimental approach is presented for the systematic study of oxidation/reduction melting reactions in the system BaO-Y2O3-CuO(x), including a combination of controlled atmosphere calcination and materials handling, controlled atmosphere quenching and annealing, powder XRD, SEM/EDX, DTA, thermogravimetric analysis, and atomic absorption spectrophotometry. The melting of the 'green phase' (BaY2CuO5) is used as an example. As this compound melts at 1268 C to a mixture of BaY2O4, Y2O3, and liquid, oxygen is lost, corresponding to a change in bulk CuO(x) from CuO sub 1.0 to CuO sub 0.48. The resulting melt lies close to the BaO-CuO(x) join, with a composition at 34 mol pct BaO, 5 mol pct YO sub 1.5, and 61 mol pct CuO(x). 9 refs

Additional details

Publishing Information

Publisher
American Ceramic Society, Inc.
Imprint Place
Westerville, OH (United States)
Imprint Title
Superconductivity and ceramic superconductors II; Proceedings of the Symposium, Orlando, FL, Nov. 12-15, 1990
Imprint Pagination
633 p.
Journal Page Range
p. 73-84.

Conference

Title
2. international ceramic science and technology congress.
Dates
12-15 Nov 1990.
Place
Orlando, FL (United States).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
23070452
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BARIUM OXIDES; CALCINATION; COPPER OXIDES; LIQUIDS; MELTING; OXIDATION; PHASE DIAGRAMS; REDUCTION; STOICHIOMETRY; YTTRIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; CHEMICAL REACTIONS; COPPER COMPOUNDS; DECOMPOSITION; DIAGRAMS; FLUIDS; INFORMATION; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; PYROLYSIS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS

Optional Information

Secondary number(s)
CONF-901125--.