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IJEMS Vol.14(5) [October 2007] >
| Title: | Preparation, characterization and physical properties of Mg-Zn ferrites |
| Authors: | Bammannavar, B K
Naik, L R
Pujar, R B
Chougule, B K |
| Issue Date: | Oct-2007 |
| Publisher: | CSIR |
| Abstract: | Polycrystalline nano-sized ferrites with the general chemical formula Mg₁₋x Znx Fe₂O₄z (where x = 0.1, 0.2, 0.3, 0.4 and 0.5) have been prepared from a simple polymer matrix based precursor solution. The solution was composed of metal nitrates with polymer PVA and Sucrose. Thermolysis of the precursor mass at about 773 K resulted in the oxide phase. Sam-ples of ferrites were characterized by various experimental techniques including scanning electron microscopy (SEM), X-ray diffraction studies, IR studies and VSM (vibrating sample magnetometer) analysis. The variation of resistivity with tempera-ture shows the break at Curie temperature, indicating the transition from ferrimagnetism to paramagnetism however; the ef-fects of porosity on electric and magnetic properties of the ferrite samples are also discussed. |
| Page(s): | 381-385 |
| ISSN: | 0971-4588 |
| Source: | IJEMS Vol.14(5) [October 2007]
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