Structural, Infrared, Magnetic, and Electrical Properties of Ni{sub 0.6}Cd{sub 0.2}Cu{sub 0.2}Fe{sub 2}O{sub 4} Ferrites Synthesized Using Sol-Gel Method Under Different Sintering Temperatures

Ni{sub 0.6}Cd{sub 0.2}Cu{sub 0.2}Fe{sub 2}O{sub 4} ferrites were synthesized using sol-gel method under different sintering temperatures. XRD patterns with the Rietveld refinement indicate that samples crystallize in the cubic spinel structure. The increase of sintering temperature leads successivel...

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Bibliographic Details
Published in:Journal of superconductivity and novel magnetism 2019-07, Vol.32 (7)
Main Authors: Kouki, Noura, Hcini, Sobhi, Aldawas, Reema, Boudard, Michel
Format: Article
Language:English
Subjects:
CADMIUM COMPOUNDS
COPPER COMPOUNDS
DIELECTRIC PROPERTIES
ELECTRIC CONDUCTIVITY
FERRITES
GRAIN BOUNDARIES
INFRARED SPECTRA
LATTICE PARAMETERS
MAGNETIC PROPERTIES
MAGNETIZATION
MATERIALS SCIENCE
NICKEL COMPOUNDS
POLARIZATION
RELAXATION
SOL-GEL PROCESS
SPINELS
X-RAY DIFFRACTION
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Summary:Ni{sub 0.6}Cd{sub 0.2}Cu{sub 0.2}Fe{sub 2}O{sub 4} ferrites were synthesized using sol-gel method under different sintering temperatures. XRD patterns with the Rietveld refinement indicate that samples crystallize in the cubic spinel structure. The increase of sintering temperature leads successively to the increase of lattice constant, average crystallite size, intensities of absorption bands, magnetization, and electrical conductivity of the prepared ferrites. Dielectric constants decrease with frequency and their behaviors have been investigated using the interfacial polarization theory predicted by Maxwell. The modulus analysis shows the presence of electrical relaxation phenomenon and non-Debye nature for the samples. An appropriate electrical equivalent circuit was used to analyze the Nyquist plots, and the results show that the conduction mechanism of the synthesized ferrites is mainly due to the grain boundary contribution.
ISSN:1557-1939
1557-1947