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- W2937138412 abstract "Abstract The effect of Al-substitution on the physical, magnetic and electrical properties of Ni–Cu–Zn ferrite of chemical formula Ni 0.4 Cu 0.2 Zn 0.4 Al x Fe 2− x O 4 ( x = 0 to x = 0.15 with step = 0.025) which prepared by conventional ceramic method has been studied. X-ray patterns indicated the presence of a single spinel phase. Analysis of IR-spectrum indicated the occupation of Al-ions the octahedral site in ferrite lattice. SEM micrographs showed that the average grain size D decreased with increasing Al-content. The magnetization is measured using VSM at room temperature. The initial permeability is measured, on toroidal samples used as transformer cores, as a function of temperature at constant frequency of 10 kHz and Curie temperature ( T c ) is determined. It was found that Al-ion substitute improved the magnetization as well as the initial permeability with no considerable effect for it on the value of T c . The dc resistivity is also increased with increasing Al-concentration. Such results are promising ones for the high frequency applications." @default.
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- W2937138412 date "2010-05-01" @default.
- W2937138412 modified "2023-10-14" @default.
- W2937138412 title "Enhancement of the Magnetic Properties of Ni-Cu-Zn Ferrites by the Non-magnetic Al3+-ions Substitution" @default.
- W2937138412 doi "https://doi.org/10.21608/icmep.2010.29809" @default.
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