Inderscience Publishers

Morphological studies and dielectrical behaviour of nickel substituted on Mg-Mn nanoferrites

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Mg-Mn-Ni ferrites of different compositions, Mg
0.40
Mn
0.60-x
Ni
x
Fe
2
O
4
with
x = 0.00
,
0.05
and
0.15
were prepared by a co-precipitation technique at 30°C to 60°C. Their structural and dielectrical properties were studied using XRD, SEM and AFM analyses, FT-IR technique and impedance analyses. From these, we observed that Mg-Mn-Ni ferrites prepared by this method have higher resistivity than that prepared by the conventional ceramic method and others. Higher resistivity ferrite materials are suitable particularly for high-frequency applications where eddy current losses are required to be low.

Keywords: ferrites, X-ray diffraction, dielectric constant, dielectric devices, dielectric function, impedance spectroscopy

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