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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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