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Preparation of Poly-Substituted Crystals with M-Type Hexa-Ferrite Structure Using Melts of the BaO-PbO-SrO-CaO-ZnO-Fe2O3-Mn2O3-Al2O3 System

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Abstract:

The paper presents the experimental study results of a multicomponent phase with M-type hexaferrite structure obtaining. The synthesis method of the BaO–PbO–SrO–CaO–ZnO–Fe2O3–Mn2O3–Al2O3 system melt was used. As a result of the study, microcrystalline octahedral and hexagonal phases were found in the crystallized sample. The hexagonal one, judging by the chemical composition, is a multicomponent phase with the structure of M-type hexaferrite (Ba/Sr/Ca) (Fe/Mn/Al)12O19, which is characterized (judging by the concentrations of the components) by rather high values of configurational mixing entropy. It was shown that lead is practically absent in the crystallized phase composition. The zinc content is unstable. Obviously, lead oxide in used experimental conditions, goes into the composition of the gas phase. The question of the possibility of using zinc as a component of the hexaferrite phase deserves further careful study.

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Periodical:

Solid State Phenomena (Volume 299)

Pages:

275-280

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.299.275

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Online since:

January 2020

Authors:

O.V. Zaitseva*, Vladimir E. Zhivulin, A.S. Chernukha

Keywords:

Experimental Study, High-Entropy Phases, M-Type Hexa-Ferrites, Substitution of Atoms in the Crystal Structure

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