| Effect of Composition on AC-Eiectrical Resistivity
of Ni-Zn Ferrites Prepared by Flash
Combustion Technique |
R. V. Mangalaraja, S. Ananthakumar, P. Manohar and F. D. Gnanam
Pages : 17-19
DOI : 10.1080/0371750X.2002.10800011 |
| Abstract |
| Nickel-zinc ferrites of different compositions Ni,_xZnxFe204
(x = 0.2, 0.3, 0.4 and 0.5) are prepared using flash combustion
technique. The effect of frequency and composition on the
ac-resistivity is studied for Ni-Zn ferrite samples sintered in the
temperature range 1150° -1350"C. The physical properties, such
as bulk density and porosity, are also studied for sintered ferrite
samples. The experimental results indicate that the ac-resistivity
(Peel decreases with increasing frequency. The ac-resistivity
of the order of 105 n em is obtained at 10 kHz in room
temperature. These high values of resistivity make these Ni-Zn
ferrites suitable for high frequency applications. |
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