Dc electrical properties of mg substituted nicuzn ferrites read online aliuzzaman 1m.
Dc electrical properties of ferrites.
Nanosized cobalt ferrites having the general formula cofe 2 x al x o 4 for x 0 00 0 25 0 50 have been synthesized by the sol gel route.
Ferrite nanoparticles of the composition co 0 5 m 0 37 cu 0 13 fe 2 o 4 m ni zn and mg have been synthesized using sol gel auto combustion method.
High permeability to magnetic fields is particularly desirable in devices such as antennas.
Discussion on electrical properties of ferrites is generally explained by carrier hopping model or band structure.
And activation energies for electric conduction in ferrimagnetic e r and in paramagnetic f p region decrease as zinc ion substitution.
Dc electrical resistivity was studied for zn x ni 1 x fe 2 o 4 samples with x 0 0 2 0 4 0 6 0 8 and 1 prepared using the usual ceramic technique as function of temperature t and composition x the dc electrical resistivity ϱ curie temperature t c.
However this does not apply to automotive electronic devices particularly hev hybrid electric vehicle dc dc converters.
Therefore in order to save energy dc dc converters for electronic devices use a power ferrite material that minimizes core loss in the operating temperature range generally about 60 to 100 c.
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Moreover electrical conductivity has a significant effect on the dielectric polarization in the spinel ferrites.
Although there are few reports on different properties of ni zn ferrite a systematic investigation about electrical properties is lacking so there is a need for investigation of electrical properties on ni zn ferrite to understand.
Structural and electrical characterization of ni zn ferrites.
The effect of al 3 ions on structural curie temperature dc electrical resistivity and dielecltric properties are presented in this paper.
From the analysis of powder x ray diffraction patterns the nanocrystallite size was calculated by the most.
The most important properties of ferrites include high magnetic permeability and high electrical resistance.
Structural properties are investigated using powder x ray diffraction technique and the results showed a pure spinel crystal structures of the synthesized materials with lattice parameters in the range of 8 3331 8 4793 å.
The micro structural and magnetic properties of ni 0 7 zn 0 3 fe 2 o 4 ferrite prepared by sol gel auto combustion method has been investigated 7 8 9 it was found that in the inverse spinel ni zn ferrite zn ions prefer to.