The effect of the grain size on Saturation magnetization in Mg-Zn Ferrites

In this paper 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. Magnetization parameters such as saturation magnetization were calculated and the results are discussed. Saturation magnetization was found to be in the range 2 emu/gm to 8.28 emu/gm when the samples were synthesized below 100ºC. The SEM micrographs showed the uniform distribution of the particles. The SEM micrographs indicated the distribution of grains and showed the variation of the grain size of the samples with composition and temperature. The saturation magnetization had greater value when grain size had lower value. For lower temperature of synthesis, the grain size was more.

کلیدواژه ها:

Magnesium Zinc Ferrites ، Saturation magnetization ، grain size ، temperature ، SEM micrographs