Effect of Temperature of Synthesis on X-ray, Ir Properties of Mg-zn Ferrites Prepared by Oxalate Co-precipitation Method
نویسندگان
چکیده
The magnetic properties of Mg1-xZnxFe2O4 (where x = 0.3,0.4,0.5,0.6) ferrites have been studied. Magnesium Zinc Ferrites was synthesized by oxalate co-precipitation method at different synthesis temperature and characterized by X-ray diffraction and far IR absorption techniques, scanning Electron microscopy .Far infrared absorption spectra show two significant absorption bands ,first at about 600 cm -1 and second at about 425 cm –1 ,which were respectively attributed to tetrahedral (A) and octahedral (B) sites of the spinel .The positions of the bands are found to be composition dependent and dependent on the temperature of synthesis. The force constants KT and K0 were calculated and plotted against zinc concentration and temperature of synthesis. Composition dependent of force constants is explained on the basis of cation-oxygen bond distances of respective sites and cation distribution.
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