Nucleation and growth kinetics of the tetragonal to orthorhombic transition in YBa/sub 2/Cu/sub 3/O/sub 7-//sub partial/
Journal Article
·
· J. Appl. Phys.; (United States)
The nucleation and growth geometry of the tetragonal to orthorhombic transformation in YBa/sub 2/Cu/sub 3/O/sub x/ is determined to be grain-boundary nucleation after saturation. In this geometry the orthorhombic phase rapidly nucleates along the grain boundaries, then propagates into the grains as a planar front governed by the much slower volume diffusion of oxygen. This conclusion is reached by fitting the volume fraction of the superconducting, and hence orthorhombic, phase as a function of annealing time at 400 /sup 0/C to the Avrami relation. The volume fraction of the superconducting phase is obtained using magnetization versus field data.
- Research Organization:
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439
- OSTI ID:
- 7032449
- Journal Information:
- J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 64:4; ISSN JAPIA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Kinetic processes of the orthorhombic to tetragonal phase transition in YBa/sub 2/Cu/sub 3/O/sub 7-delta/
Optical differentiation of orthorhombic superconductors such as YBa/sub 2/Cu/sub 3/O/sub 7/ from their tetragonal precursor material
Structural and superconducting properties of orthorhombic and tetragonal YBa/sub 2/Cu/sub 3/O/sub 7-//sub x/: The effect of oxygen stoichiometry and ordering on superconductivity
Conference
·
Sun Jan 31 23:00:00 EST 1988
·
OSTI ID:7203364
Optical differentiation of orthorhombic superconductors such as YBa/sub 2/Cu/sub 3/O/sub 7/ from their tetragonal precursor material
Journal Article
·
Mon Feb 29 23:00:00 EST 1988
· J. Superconduct.; (United States)
·
OSTI ID:5929502
Structural and superconducting properties of orthorhombic and tetragonal YBa/sub 2/Cu/sub 3/O/sub 7-//sub x/: The effect of oxygen stoichiometry and ordering on superconductivity
Journal Article
·
Thu Oct 01 00:00:00 EDT 1987
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:6393309
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
ANNEALING
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
CRYSTAL-PHASE TRANSFORMATIONS
DATA
DIFFUSION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
EXPERIMENTAL DATA
GRAIN BOUNDARIES
HEAT TREATMENTS
HIGH TEMPERATURE
INFORMATION
MAGNETIZATION
MICROSTRUCTURE
NONMETALS
NUCLEATION
NUMERICAL DATA
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PEROVSKITES
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
SUPERCONDUCTIVITY
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
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
ANNEALING
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
CRYSTAL-PHASE TRANSFORMATIONS
DATA
DIFFUSION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
EXPERIMENTAL DATA
GRAIN BOUNDARIES
HEAT TREATMENTS
HIGH TEMPERATURE
INFORMATION
MAGNETIZATION
MICROSTRUCTURE
NONMETALS
NUCLEATION
NUMERICAL DATA
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PEROVSKITES
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
SUPERCONDUCTIVITY
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES