Published April 1978
| Version v1
Journal article
On the system Ba2Gdsub(2/3)vacantsub(1/3)Usub(1-x)Wsub(x)O6 and hexagonal perovskites of an 18-layer type
- 1. Tuebingen Univ. (Germany, F.R.). Inst. fuer Chemie
Description
In the system Ba2Gdsub(2/3)vacantsub(1/3)Usub(1-x)Wsub(x)O6 the formation of a continuous solid solution series is observed. With x <= 0.9 the mixed crystals have a cubic 1:1 ordered perovskite structure. With x >= 0.95 the compounds are polymorphic: besides an cubic 1:1 ordered perovskite type for x = 0.95; 0.99 and 1.00 one hexagonal layer structure exists. This lattice is in all cases rhombohedral (space group R3m) and represents an 18 L-type. Likewise the compounds Ba2Bsub(2/3)sup(III)vacantsub(1/3)Wsup(VI)O6 with Bsup(III) Tb-Lu and Y belong to the 18 L-type. (author)
Additional details
Additional titles
- Original title (German)
- Ueber das System Ba
Publishing Information
- Journal Title
- Z. Anorg. Allg. Chem.
- Journal Volume
- 439
- Series
- Z. Anorg. Allg. Chem.
- Journal Page Range
- 250-254
- ISSN
- 0044-2313
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- German Democratic Republic
- INIS RN
- 10447899
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- BARIUM COMPOUNDS; CHEMICAL PREPARATION; EXPERIMENTAL DATA; GADOLINIUM COMPOUNDS; ISOLATED VALUES; LATTICE PARAMETERS; SOLID SOLUTIONS; STRUCTURAL CHEMICAL ANALYSIS; TUNGSTATES; URANATES; VACANCIES; X-RAY DIFFRACTION
- Descriptors DEC
- ACTINIDE COMPOUNDS; ALKALINE EARTH METAL COMPOUNDS; COHERENT SCATTERING; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; DATA; DATA FORMS; DIFFRACTION; DISPERSIONS; HOMOGENEOUS MIXTURES; INFORMATION; MIXTURES; NUMERICAL DATA; OXYGEN COMPOUNDS; POINT DEFECTS; RARE EARTH COMPOUNDS; SCATTERING; SOLUTIONS; SYNTHESIS; TRANSITION ELEMENT COMPOUNDS; TUNGSTEN COMPOUNDS; URANIUM COMPOUNDS