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MATERIALS SCIENCE AND TECHNOLOGY. MAGNETIC MATERIALS
ArticleName The influence of technology factors on dielectric permeability and radio absorbing characteristics of nickel−zinc ferrite
ArticleAuthor V. G. Kostishyn, R. M. Vergazov, V. G. Andreev, S. B. Bibikov, A. T. Morchenko, I. I. Kaneva, V. R. Maiorov
ArticleAuthorData V. G. Kostishyn, National University of Science and Technology «MISIS»; R. M. Vergazov, V. G. Andreev, The Kuznetsk Institute of information and control technology (branch of Penza state university); S. B. Bibikov, Institute of Biochemical Physics of RAS; A. T. Morchenko, I. I. Kaneva, V. R. Maiorov, National University of Science and Technology «MISIS».
Abstract

Results of a work aimed at increasing the efficiency of broadband radio absorbing nickel−zinc ferrites by increasing the contribution of dielectric losses to the material’s radio absorption have been presented. The influence of alloying additives and furnace atmosphere gas parameters during ferrite sintering on the absorption of electromagnetic waves has been investigated. The efficiency of product sintering in atmosphere with controlled partial pressure of oxygen for increasing the dielectric losses at the expense of a high dielectric permeability has been confirmed. A model explaining the increase of the dielectric losses during ferrite sintering in a reducing atmosphere has been suggested.
keywords Radio−absorbing ferrite, microstructure, grain boundaries, radio engineering measurements, reducing atmosphere.
References

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