A structural study of the incorporation of silica into sodium ferrites, Na sub 1 minus x (Fe sub 1 minus x Si sub x O sub 2 ), x = 0 to 0. 20
- CSIRO, Port Melbourne, Victoria (Australia)
Rietveld refinements of X-ray powder intensity data have been performed for solid solution phases along the NaFeO{sub 2}-SiO{sub 2} join. Five compositions Na{sub 1{minus}x}(Fe{sub 1{minus}x}Si{sub x}O{sub 2}) with x = 0 to 0.10 ({beta}{sub ss}, isostructural with {beta}-NaFeO{sub 2}) and four with x = 0.125 to 0.20 ({gamma}{prime}{sub ss}, isostructural with KGaO{sub 2}) were refined. The results were used to analyze the effect of incorporation of silica into NaFeO{sub 2} on the rotation of the cristobalite-type tetrahedral framework and the associated changes in the environment of the sodium atoms. In the {gamma}{prime}{sub ss}-solid solution series, there is partial ordering of iron and silicon in the tetrahedral framework, with an associated modulation of the sodium atom distribution.
- OSTI ID:
- 6815874
- Journal Information:
- Journal of Solid State Chemistry; (USA), Journal Name: Journal of Solid State Chemistry; (USA) Vol. 85:2; ISSN 0022-4596; ISSN JSSCB
- Country of Publication:
- United States
- Language:
- English
Similar Records
Structural properties of the superconductor LaBa sub 2 Cu sub 3 minus y O sub 7 minus z in the solid solution system La sub 1+ x Ba sub 2 minus x Cu sub 3 minus y O sub 7 minus z
Synthesis and characterization of perovskite-type BaTl sub 0. 5 Sb sub 0. 5 O sub 3 and BaTl sub 0. 5+x Sb sub 0. 5 minus x ( sub 3 minus x )
Related Subjects
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
BISMUTH COMPOUNDS
BISMUTH SULFIDES
CHALCOGENIDES
DATA ANALYSIS
ELECTRON MICROSCOPY
LEAD COMPOUNDS
LEAD SULFIDES
MEASURING INSTRUMENTS
MEASURING METHODS
MICROSCOPY
PHASE STUDIES
SILVER COMPOUNDS
SILVER SULFIDES
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSMISSION ELECTRON MICROSCOPY
TWINNING