This work had the objective of studying the detailed structural properties cadmium doped of Magnesium ferrite (MgFe 2 O 4 ) obtained, which was prepared by low-cost solid-state Method and characterized by XRD and SEM techniques. The X-ray analysis confirms the formation of single phase cubic spinel structure. The crystallite size, Texture coefficient [TC(hkl)], dislocation density (ρ D ), hopping lengths and mechanical properties are also reported.SEM images reveals agglomerated non-uniform grains with grain size varies from 0.7031 µm to 1.1158 µm. Садржај: У овом раду детаљно су проучавана структурна својства магнезијум ферита допираног кадмијумом, који је припремљен јефтином методом реакција у чврстој фази и карактерисаног техникама рендгенске дифракције и скенирајуће електронске микроскопије. Рендген је показао формирање једне фазе кубичне спинелне структуре. Такође су приказане величина кристалита, коефицијент текстуре, густина дислокација и механичка својства. Микрографије указују на агломерисана неуниформна зрна, са величином зрна од 0,7031 µm до 1,1158 µm. Кључне речи: магнезијум-кадмијум ферит, рендгенска дифракција, коефицијент текстуре, густина дислокација, микронапрезање, скенирајућа електронска микроскопија.
Abstract-Copper-cobalt ferrites with general chemical formula Cu x Co 1−x Fe 2 O 4 (with x = 0.0, 0.4, 0.6 & 1.0) were prepared by ceramic method. The solid state reaction was confirmed by XRD patterns. DC conductivity was measured by two probe method. Electrical resistivity is found to increase on lowering of sintering temperature and time. At x = 1.0, the conduction is mainly due to hopping of electrons leading to n-type conductivity while at x = 0.0, conduction is due to holes leading to P-type conductivity. The lowest conduction at x = 0.4 is attributed to the electron hole compensation. SEM micrographs were obtained from JEOL scanning electron microscope. The micrographs reveal that an average grain size increases with sintering temperature and time as a result of decrease in porosity. This leads to the decrease in resistivity with sintering temperature and time. One of the factors for higher conductivity in ferrites is an increase in average grain size and decrease in pore concentration during the heat treatment.
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