Structural characterization of polycrystalline gallium-substituted cobalt ferrites

CoFexGa2-xO4 ceramics with x = 0.25, 0.5, 0.75, 1.00, 1.25, 1.5 and 1.75 were prepared from oxides. XRD shows complete solid solubility between CoFe2O4 and CoGa2O4 at 1273 K, the firing temperature. Cation distributions between the A and B sites were calculated from XRD intensities using the R-facto...

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Bibliographic Details
Published in:	Journal of materials science letters Vol. 9; no. 2; pp. 229 - 230
Main Authors:	OTERO AREAN, C, RODRIGUEZ BLANCO, J. L, RUBIO GONZALEZ, J. M, TROBAJO FERNANDEZ, M. C
Format:	Journal Article
Language:	English
Published:	Dordrecht Kluwer Academic Publishers 01-02-1990
Subjects:	Condensed matter: structure, mechanical and thermal properties Exact sciences and technology Inorganic compounds Miscellaneous Physics Structure of solids and liquids; crystallography Structure of specific crystalline solids Cobalt Iron Gallium Oxides Mixed Monte Carlo method Temperature Transition metal Compounds Polycrystal Experimental study Lattice parameters X ray diffraction Ion distribution Inorganic compound Characterization Cobalt Iron Oxides Mixed Spinels
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Summary:	CoFexGa2-xO4 ceramics with x = 0.25, 0.5, 0.75, 1.00, 1.25, 1.5 and 1.75 were prepared from oxides. XRD shows complete solid solubility between CoFe2O4 and CoGa2O4 at 1273 K, the firing temperature. Cation distributions between the A and B sites were calculated from XRD intensities using the R-factor method. The Co3+ virtually occupies only B sites. Distribution of Fe3+ and Ga3+ between A and B sites depends on the value of x. 17 refs.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0261-8028 1573-4811
DOI:	10.1007/BF00727726