Dc Electrical Properties Of Ferrites

The most important properties of ferrites include high magnetic permeability and high electrical resistance.

Dc electrical properties of ferrites.

The dc electrical conductivity of ferrites is one of the important properties which gives the valuable information about the conduction mechanism. High permeability to magnetic fields is particularly desirable in devices such as antennas. 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. 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.

From the analysis of powder x ray diffraction patterns the nanocrystallite size was calculated by the most. 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. The effect of ti al and mg ions on the electric and magnetic properties of ni zn ferrites was studied. Moreover electrical conductivity has a significant effect on the dielectric polarization in the spinel ferrites.

However this does not apply to automotive electronic devices particularly hev hybrid electric vehicle dc dc converters. 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. 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.

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. This is an open access article distributed under the creative commons attribution license which permits unrestricted use distribution and reproduction in any medium provided the. 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. 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.

Ferrites can have several different types of crystalline structures including spinel garnet perovskite and hexagonal.