Journal ArticleDOI
Dielectric behaviour of tetravalent titanium-substituted Ni-Zn ferrites
Chandra Prakash,J.S. Baijal +1 more
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TLDR
In this paper, the dielectric constants and loss tangents of tetravalent titanium-substituted Ni-Zn ferrites were measured at room temperature in the frequency range 100 Hz -500 kHz.Abstract:
The dielectric constants and dielectric loss tangents of tetravalent titanium-substituted Ni-Zn ferrites Zn 0.25 Ni 0.75 + t Ti t Fe 2−2 t O 4 with various titanium concentrations were measured at room temperature in the frequency range 100 Hz – 500 kHz. The variation of these parameters with composition and frequency is explained qualitatively. Peaks in the dielectric loss tangent versus frequency curves are observed in two of the ferrites. The possible mechanisms are discussed.read more
Citations
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Journal ArticleDOI
Dielectric behaviour in Ni–Zn ferrites
TL;DR: In this article, the dielectric properties of Ni 1− x Zn x Fe 2 O 4 ferrite samples were studied as a function of temperature, frequency and composition.
Journal ArticleDOI
Dielectric behaviour of erbium substituted Mn-Zn ferrites
TL;DR: In this article, the authors measured the dielectric properties of mixed Mn-Zn-Er ferrites having the compositional formula Mn0.58Zn0.37Er1.05−xErx04 (where itx = 0.2, 0.4, 0.,6, 0,8 and 1.0) at room temperature in the frequency range 1−13 MHz using a HP 4192A impedance analyser.
Journal ArticleDOI
Dielectric behavior and ac electrical conductivity of Zn-substituted NiMg ferrites
TL;DR: In this paper, the effect of temperature, frequency and composition on the dielectric behavior and ac electrical conductivity were studied for a series of Zn-substituted Ni-Mg ferrite samples prepared using the usual ceramic technique.
Journal ArticleDOI
Influence of grain size and structural changes on the electrical properties of nanocrystalline zinc ferrite
N. Ponpandian,A. Narayanasamy +1 more
TL;DR: In this article, the effect of grain size on the conductivity and dielectric properties of nanocrystalline zinc ferrite with various grain sizes ranging from 7 to 115 nm have been studied over a wide frequency range 1 Hz-15 MHz by impedance measurements in the temperature range of 300-650 K.
Journal ArticleDOI
Effect of tetravalent titanium ions substitution on the dielectric properties of Co-Zn ferrites
TL;DR: A series of polycrystalline spinel ferrites with composition Co 0.4 Zn 0.6+ X Ti X Fe 2−2 X O 4, were prepared by the standard ceramic method to study the effect of Ti ions substitution on their AC electrical conductivity and dielectric properties at different frequencies and temperatures as discussed by the authors.
References
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Journal ArticleDOI
On the Dispersion of Resistivity and Dielectric Constant of Some Semiconductors at Audiofrequencies
TL;DR: In this paper, the ac resistivity and the apparent dielectric constant of the material show a dispersion which can be explained satisfactorily with the help of a simple model of the solid: there should be wellconducting grains separated by layers of lower conductivity.
Journal ArticleDOI
Dielectric properties of copper containing ferrites
N. Rezlescu,E. Rezlescu +1 more
TL;DR: In this paper, the authors investigated the dielectric parameters of copper containing ferrites and found an abnormal behaviour of the constant and loss factor as a function of frequency and temperature in comparison with the normal behaviour of spinel ferrites.
Journal ArticleDOI
Dielectric Properties of Fine Particles of Fe3O4 and Some Ferrites
TL;DR: In this paper, the dispersions of resistivity and dielectric constant of fine oxides over a frequency range from 10 Hz to 1 MHz in the temperature range from 77°K to 300°K were studied.