The oxycarbonate Y[sub 1. 6]Ca[sub 0. 4]Ba[sub 4]Cu[sub 5]CO[sub 3]O[sub 11], n = 2 member of the [open quotes]123[close quotes]-type derivatives (Y[sub 1[minus]x]Ca[sub x])[sub n]Ba[sub 2n]Cu[sub 3n[minus]1]CO[sub 3]O[sub 7n[minus]3]
Journal Article
·
· Journal of Solid State Chemistry; (United States)
- Universite de Caen (France)
The exploration of the system Y-Ba-Cu-C-O, using high resolution electron microscopy, has allowed the oxycarbonate Y[sub 1.6]Ca[sub 0.4]Ba[sub 4]Cu[sub 5]O[sub 11]CO[sub 3] to be isolated. This 123 derivative phase is characterized by the superstructure a [approx] 2a[sub 123], b [approx] b[sub 123], c [approx] 2c[sub 123]. It corresponds to the ordered replacement of one chain of CuO[sub 4] square planar groups out of two by one row of carbonate groups, involving the formation of chains of CuO[sub 5] pyramids running along b. This oxide, which is the first one derived from the pure barium superconductor Y[sub 1[minus]x]Ca[sub x]Ba[sub 2]Cu[sub 3]O[sub 7], can be described as the n = 2 member of the 123-type derivatives with the generic formulation (Y[sub 1[minus]x]Ca[sub x])[sub n]Ba[sub 2n]Cu[sub 3n[minus]1]CO[sub 3]O[sub 7n[minus]3]. 9 refs., 4 figs.
- OSTI ID:
- 5629327
- Journal Information:
- Journal of Solid State Chemistry; (United States), Journal Name: Journal of Solid State Chemistry; (United States) Vol. 105:1; ISSN 0022-4596; ISSN JSSCBI
- Country of Publication:
- United States
- Language:
- English
Similar Records
New extended defects in the superconductive [open quotes]123[close quotes] oxycarbonitrate YCaBa[sub 4]Cu[sub 5](NO[sub 3])[sub x](CO[sub 3])[sub 1[minus]x]O[sub 11]: HREM study
Oxycarbonates in the Y(O/CO sub 3 )-Ba(O/CO sub 3 )-Cu(O/CO sub 3 ) system
Substitution of [open quotes]CO[sub 3][close quotes] groups for copper in YBCO: The oxycarbonates Y[sub n]Ba[sub 2n]Cu[sub 3n[minus]1]Co[sub 3]O[sub 7n[minus]3]
Journal Article
·
Sun Aug 01 00:00:00 EDT 1993
· Chemistry of Materials; (United States)
·
OSTI ID:7207492
Oxycarbonates in the Y(O/CO sub 3 )-Ba(O/CO sub 3 )-Cu(O/CO sub 3 ) system
Journal Article
·
Tue Oct 01 00:00:00 EDT 1991
· Journal of Solid State Chemistry; (United States)
·
OSTI ID:7266681
Substitution of [open quotes]CO[sub 3][close quotes] groups for copper in YBCO: The oxycarbonates Y[sub n]Ba[sub 2n]Cu[sub 3n[minus]1]Co[sub 3]O[sub 7n[minus]3]
Journal Article
·
Sun Oct 31 23:00:00 EST 1993
· Chemistry of Materials; (United States)
·
OSTI ID:5091605
Related Subjects
36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
BARIUM CARBONATES
BARIUM COMPOUNDS
BARIUM OXIDES
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CARBON COMPOUNDS
CARBONATES
CHALCOGENIDES
COPPER CARBONATES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
ELECTRON MICROSCOPY
LATTICE PARAMETERS
MICROSCOPY
MILLER INDICES
OXIDES
OXYGEN COMPOUNDS
STOICHIOMETRY
TRANSITION ELEMENT COMPOUNDS
YTTRIUM CARBONATES
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
BARIUM CARBONATES
BARIUM COMPOUNDS
BARIUM OXIDES
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CARBON COMPOUNDS
CARBONATES
CHALCOGENIDES
COPPER CARBONATES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
ELECTRON MICROSCOPY
LATTICE PARAMETERS
MICROSCOPY
MILLER INDICES
OXIDES
OXYGEN COMPOUNDS
STOICHIOMETRY
TRANSITION ELEMENT COMPOUNDS
YTTRIUM CARBONATES
YTTRIUM COMPOUNDS
YTTRIUM OXIDES