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Title: Preparation samples of Cu1-xZnxFe2O4ferrite using Sol-Gel method and studying some physical properties

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Title:
Preparation samples of Cu1-xZnxFe2O4ferrite using Sol-Gel method and studying some physical properties
Author Name:
Kadhum. J. K. and atheer. I. A.
Abstract:
Inthis work fabrication of Cu–Zn ferrite samples (where x = 0.4and 0.6), using a Sol-Gel method is prepared. Nitrates of magnesium, zinc and iron with purity of about 97.00% were mixed with (80 ml) of distilled water in a glass beaker, was homogenized by continuous stirring by magnetic hot plat-stirrers model (LMS-1003). The pH of the solution was adjusted to (~7) using ammonia solution.Heated on a hot plate at 60ºC for half hour. The temperature is increase to 80ºC With continuous heating after about (3) hrs. The sol was initially transformed into gel. The gel dried at 120°C until the dried gel wasburnt in a self-propagating combustion manner until all gels were completely burnt out to form a fluffy loose structure. The fluffy material was ground to get ferrite powder using theElectricgrinder for three minutes. The as-burnt ash was calcined at 500°C for 3hrs. By using theElectricgrinder for three minutes the dried mixtures are ground to a fine powder. The fine powder was pre-sintered (calcined) at 500ºC for 4 h and sintered at 1000°C, 1050°C and 1100°C. The magnetic and the crystal structure of the prepared Samples were identified using Microwave Measurement, X-Ray Diffraction analysis and scanning electron microscope (SEM). The X-ray diffraction analysis showed major peak at plane (2 1 1) of the cubic structure for all the ferrites. The largest value of density achieved was (5.027gm.cm-3). Reflectance coefficient (S11) and transmission coefficient (S21), has measured using network analyzer device then the attenuation coefficient and absorbance were calculated at the X-band range (8-12.5 GHz), The SEM micrographs shows the uniform distribution of the particles
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