An X-ray diffraction study of disorder in MgFe2O4 and Mg(Cr, Al)O4
- 1 June 1968
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 1 (3), 663-672
- https://doi.org/10.1088/0022-3719/1/3/314
Abstract
The X-ray diffraction line profiles obtained from the spinels MgFe2O4 and Mg(Cr, Al)O4 have been examined by a step-scanning diffractometer and found to be broadened. An analysis of the variance of the profiles is carried out using the techniques developed by Langford and Wilson, and from this it is concluded that mistakes are the probable origin of broadening in both cases. Further analysis suggests that these mistakes are associated with variable composition. Evidence is presented in support of order in the arrangement of Cr3+ ions in Mg(Cr, Al)O4 while MgFe2O4 appears to have a random mistake structure.Keywords
This publication has 10 references indexed in Scilit:
- The effect of substitutional disorder in the spinel structure upon the x-ray diffraction line profilesJournal of Physics C: Solid State Physics, 1968
- On Variance as a Measure of Line Broadening in Diffractometry II: Mistakes and StrainProceedings of the Physical Society, 1963
- On Variance as a Measure of Line Broadening in Diffractometry General Theory and Small Particle SizeProceedings of the Physical Society, 1962
- The distribution of transition metal cations in spinelsJournal of Physics and Chemistry of Solids, 1957
- Neutron-diffraction studies of magnesium ferrite–aluminate powdersActa Crystallographica, 1953
- A neutron-diffraction study of magnesium aluminium oxideActa Crystallographica, 1952
- Sur quelques progrès récents dans la cristallographie des spinelles, en particulier des ferritesJournal de Physique et le Radium, 1951
- Physical Properties and Cation Arrangement of Oxides with Spinel Structures II. Electronic ConductivityThe Journal of Chemical Physics, 1947
- Physical Properties and Cation Arrangement of Oxides with Spinel Structures I. Cation Arrangement in SpinelsThe Journal of Chemical Physics, 1947
- Electronic conductivity and transition point of magnetite (“Fe3O4”)Physica, 1941