zldmЗаводская лаборатория. Диагностика материаловIndustrial laboratory. Diagnostics of materials1028-68612588-0187ООО «Издательство «ТЕСТ-ЗЛ»10.26896/1028-6861-2026-92-7-37-46zldm-2885Research ArticleИССЛЕДОВАНИЕ СТРУКТУРЫ И СВОЙСТВ. ФИЗИЧЕСКИЕ МЕТОДЫ ИССЛЕДОВАНИЯ И КОНТРОЛЯTESTING OF STRUCTURE AND PARAMETERS. PHYSICAL METHODS OF TESTING AND QUALITY CONTROLИсследование структурных и магнитных свойств ферримагнитных материалов при высокоэнергетическом измельченииStudy of the structural and magnetic properties of ferrimagnetic materials under high-energy millingБобуёкС. А.BobuyokS. A.

Сергей Андреевич Бобуёк

634050, г. Томск, просп. Ленина, д. 30

Sergey A. Bobuyok

30, prosp. Lenina, Tomsk, 634050

bobuyok@tpu.ruСуржиковА. П.SurzhikovA. P.

Анатолий Петрович Суржиков

634050, г. Томск, просп. Ленина, д. 30

Anatoly P. Surzhikov

30, prosp. Lenina, Tomsk, 634050

ВласовВ. А.VlasovV. A.

Виталий Анатольевич Власов

634050, г. Томск, просп. Ленина, д. 30

Vitaly A. Vlasov

30, prosp. Lenina, Tomsk, 634050

ЛысенкоЕ. Н.LysenkoE. N.

Елена Николаевна Лысенко

634050, г. Томск, просп. Ленина, д. 30

Elena N. Lysenko

30, prosp. Lenina, Tomsk, 634050

Национальный исследовательский томский политехнический университетРоссияNational Research Tomsk Polytechnic UniversityRussian Federation2026260720269273746Copyright © Бобуёк С.А., Суржиков А.П., Власов В.А., Лысенко Е.Н., 20262026Бобуёк С.А., Суржиков А.П., Власов В.А., Лысенко Е.Н.Bobuyok S.A., Surzhikov A.P., Vlasov V.A., Lysenko E.N.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.zldm.ru/jour/article/view/2885

Широкое применение ферримагнитных материалов обуславливает необходимость управления и контроля их функциональных характеристик, модификация которых может осуществляться путем механического измельчения материала в шаровой мельнице. Цель работы — исследование влияния высокоэнергетического измельчения на структуру и магнитные свойства ферритов. Образец бариевого гексаферрита (BaFe12O19) исследовали с использованием методов рентгенофазового анализа, БЭТ, импульсной магнитометрии и синхронного термического анализа. Установлено, что измельчение приводит к уменьшению размеров областей когерентного рассеяния и увеличению микронапряжений ферритового материала, что сопровождается снижением его температуры Кюри и намагниченности насыщения. Синхронный термический анализ в постоянном магнитном поле показал, что температурные координаты весовой ступени на термогравиметрической кривой могут быть использованы для оценки размера областей когерентного рассеяния ферримагнетика. Выявленные закономерности были формализованы в виде регрессионных моделей, позволяющих предсказывать изменение анализируемых параметров в зависимости от режимов измельчения. Полученные результаты могут быть использованы при совершенствовании методики модификации свойств магнитотвердых ферритовых материалов с помощью контролируемых помолов в шаровых мельницах.

The widespread use of ferrimagnetic materials necessitates the management and control of their functional characteristics, which can be modified by mechanical grinding in a ball mill. The aim of this study was to investigate the effect of high-energy milling on the structure and magnetic properties of ferrites. A barium hexaferrite (BaFe12O19) sample was analyzed using X-ray diffraction, BET, pulse magnetometry, and synchronous thermal analysis. It was found that milling leads to a decrease in the size of coherent scattering regions and an increase in microstrains in the ferrite material, which is accompanied by a decrease in its Curie temperature and saturation magnetization. Synchronous thermal analysis in a constant magnetic field showed that the temperature coordinates of the weighing step on the thermogravimetric curve can be used to estimate the size of the coherent scattering regions of the ferrimagnet. The identified patterns were formalized as regression models, allowing one to predict changes in the analyzed parameters depending on the grinding conditions. The obtained results can be used to improve the method for modifying the properties of magnetically hard ferrite materials using controlled grinding in ball mills.

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The authors declare that there are no conflicts of interest present.