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Frequency Dependence of Complex Permeability of Polycrystalline Ferrites Based on the Realities of Microstructure

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Abstract:

Complex permeability spectra of polycrystalline ferrites are analyzed on the basis of the model accounting for the effects of their grain size distribution (GSD). The model allows for explicit relation for absorption component. It shows, that by change of only one parameter (related with GSD) it is possible to turn from the relaxation to resonance character of spectrum, that spectra of ferrites, sintered at low temperature, tend to the most theoretical type - symmetrical one.

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Periodical:

Key Engineering Materials (Volume 543)

Pages:

507-510

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.543.507

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Online since:

March 2013

Authors:

Janis Jankovskis, Nikolajs Ponomarenko, Deniss Stepins

Keywords:

Complex Initial Permeability, Grain Size Distribution Effects, Polycrystalline Ferrites

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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