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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">techusgu</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Юго-Западного государственного университета. Серия: Техника и технологии</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the Southwest State University. Series: Engineering and Technology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2223-1528</issn><publisher><publisher-name>Юго-Западный государственный университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21869/2223-1528-2022-12-3-130-146</article-id><article-id custom-type="elpub" pub-id-type="custom">techusgu-41</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ФИЗИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICS</subject></subj-group></article-categories><title-group><article-title>Динамика магнитных жидкостей и бидисперсных магнитных систем при колебательных сдвигах</article-title><trans-title-group xml:lang="en"><trans-title>Dynamics of Magnetic Fluids and Bidisperse Magnetic Systems  under Oscillatory Shifts</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1673-8144</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шельдешова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shel’deshova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шельдешова Елена Владимировна, старший преподаватель кафедры нанотехнологий,  микроэлектроники, общей и прикладной  физики</p><p>ул. 50 лет Октября 94, г. Курск 305040</p></bio><bio xml:lang="en"><p>Elena V. Shel’deshova, Senior Lecturer  of the Department of Nanotechnology,  Microelectronics, General and Applied Physics</p><p>50 Let Oktyabrya Str. 94, Kursk 305040</p></bio><email xlink:type="simple">blackberry__@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7712-0682</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ряполов</surname><given-names>П. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ryapolov</surname><given-names>P. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ряполов Петр Алексеевич, доктор физико- математических наук, доцент, декан  естественно-научного факультета</p><p>ул. 50 лет Октября 94, г. Курск 305040</p></bio><bio xml:lang="en"><p>Petr A. Ryapolov, Dr. of Sci. (Physics and Mathematics), Associate Professor, Dean of the Faculty of Natural Sciences</p><p>50 Let Oktyabrya Str. 94, Kursk 305040</p></bio><email xlink:type="simple">r-piter@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рекс</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Reks</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рекс Александр Георгиевич, доктор физикоматематических наук, профессор, профессор  кафедры ЮНЕСКО "Энергосбережение и  возобновляемые источники энергии"</p><p>пр. Независимости 65, г. Минск 220013</p></bio><bio xml:lang="en"><p>Alexander G. Reks, Dr. of Sci. (Physics and Mathematics), Professor, Professor of the UNESCO Chair "Energy Saving and Renewable Energy Sources"</p><p>65 Nezavisimosti Ave., Minsk 220013</p></bio><email xlink:type="simple">reks@bntu.by</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Трепачев</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Trepachev</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Трепачев Алексей Витальевич, студент  кафедры нанотехнологий, микроэлектроники, общей и прикладной физики</p><p>ул. 50 лет Октября 94, г. Курск 305040</p></bio><bio xml:lang="en"><p>Alexey V. Trepachev, Student of the Department of Nanotechnology, Microelectronics, General and Applied Physics</p><p>50 Let Oktyabrya Str. 94, Kursk 305040</p></bio><email xlink:type="simple">a.v.trepachev@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Юго-Западный государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Southwest State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Белорусский национальный технический университет</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Belarusian  National Technical University</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>27</day><month>04</month><year>2023</year></pub-date><volume>12</volume><issue>3</issue><fpage>130</fpage><lpage>146</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шельдешова Е.В., Ряполов П.А., Рекс А.Г., Трепачев А.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Шельдешова Е.В., Ряполов П.А., Рекс А.Г., Трепачев А.В.</copyright-holder><copyright-holder xml:lang="en">Shel’deshova E.V., Ryapolov P.A., Reks A.G., Trepachev A.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://techusgu.elpub.ru/jour/article/view/41">https://techusgu.elpub.ru/jour/article/view/41</self-uri><abstract><sec><title>Цель</title><p>Цель. Изучить динамику магнитной жидкости и бидисперсных магнитных систем при колебательных сдвигах. </p></sec><sec><title>Методы</title><p>Методы. Эксперимент был проведен на установках, созданных на общеизвестных методах и оборудовании для магнитных измерений и изготовленных самостоятельно. Разработан оригинальный метод измерения вязкоупругих параметров магнитожидкостных систем. В данной работе исследовалась магнитная жидкость, где в качестве основы использовался магнетит Fe3O4, в качестве стабилизатора – олеиновая кислота, жидкость-носитель - керосин. Для получения бидисперсной системы в образец МЖ-1 были добавлены частицы магнетита (размер частиц 300 нм) 1%, 5% и 10% по массе твердой фазы и получены жидкости МЖ-2 – МЖ-4 соответственно. Жидкости готовили путем механического и ультразвукового смешивания частиц магнетита с магнитной жидкостью. Еще одной важной характеристикой данных систем является зависимость вязкости от температуры. Для ее получения была существенно модернизирована установка. Вокруг измерительной ячейки был изготовлен герметичный жидкостный контур, подключенный системой силиконовых гибких трубок к термостату. </p></sec><sec><title>Результаты</title><p>Результаты. Рассмотрены образцы с различными физическими параметрами, исследован магнитовязкий эффект. Микроструктура образца и присутствие крупных магнитных частиц влияют на динамику магнитных жидкостей, подверженных колебательным сдвигам и магнитовязким воздействиям.  </p></sec><sec><title>Заключение</title><p>Заключение. Исследована динамика магнитной жидкости и бидисперсных магнитных систем при колебательных сдвигах в сильном магнитном поле. Получена зависимость коэффициента затухания магнитной жидкости от температуры. Результаты могут найти применение в разработке экспресс-испытаний образцов магнитных жидкостей и в создании датчиков ускорения и вибрации. Результаты данного исследования также могут быть использованы для изучения агломерации наночастиц. </p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Purpose</title><p>Purpose. To study the dynamics of magnetic fluid and bidisperse magnetic systems under oscillatory shifts. </p></sec><sec><title>Metods</title><p>Metods. The experiment was carried out on installations created on the basis of well-known methods and equipment for magnetic measurements and were made independently. An original method for measuring the viscoelastic parameters of magnetic fluid systems has been developed. In this work, a magnetic fluid was studied, where magnetite Fe3O4 was used as a base, oleic acid was used as a stabilizer, and kerosene was used as a carrier liquid. To obtain a bidisperse system, magnetite particles (particle size 300 nm) 1%, 5%, and 10% by weight of the solid phase were added to the MF-1 sample, and MF-2 - MF-4 liquids were obtained, respectively. Liquids were prepared by mechanical and ultrasonic mixing of magnetite particles with a ferrofluid. Another important characteristic of these systems is the dependence of viscosity on temperature. To obtain it, the installation was significantly modernized. A sealed liquid circuit was made around the measuring cell, connected by a system of silicone flexible tubes to a thermostat. Results. Samples with different physical parameters are considered, and the magnetoviscous effect is studied. The microstructure of the sample and the presence of large magnetic particles affect the dynamics of magnetic fluids subjected to oscillatory shear and magnetoviscous effects. </p></sec><sec><title>Conclusion</title><p>Conclusion. The dynamics of a magnetic fluid and bidisperse magnetic systems under oscillatory shifts in a strong magnetic field has been studied. The temperature dependence of the damping coefficient of the magnetic fluid is obtained. The results can be used in the development of express tests of ferrofluid samples and in the creation of acceleration and vibration sensors. The results of this study can also be used to study the agglomeration of nanoparticles. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>магнитные жидкости</kwd><kwd>бидисперсные магнитные системы</kwd><kwd>интеллектуальные материалы</kwd><kwd>магнитное поле</kwd><kwd>колебательный сдвиг</kwd><kwd>магнитовязкий эффект</kwd></kwd-group><kwd-group xml:lang="en"><kwd>magnetic fluids</kwd><kwd>bidisperse magnetic systems</kwd><kwd>smart materials</kwd><kwd>magnetic field</kwd><kwd>oscillatory shift</kwd><kwd>magnetoviscous effect</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Публикация подготовлена в рамках реализации программы стратегического академического лидерства "Приоритет-2030" (Соглашения № 075-15-2021-1155 и № 075-15-2021-1213) и в рамках реализации государственного задания (№ 0851-2020-0035). Авторы выражают благодарность сотрудникам Регионального центра нанотехнологий ЮЗГУ: доктору физико-математических наук, профессору Кузьменко Александру Павловичу и Новикову Евгению за помощь в получении АСМ-изображений, а также ценные комментарии при обсуждении результатов.</funding-statement><funding-statement xml:lang="en">The publication was carried out the part of the implementation of the program of strategic academic leadership "Priority-2030" (Agreements No. 075-15-2021-1155 and No. 075 -15-2021-1213). The authors express their gratitude to the staff of the Regional Center for Nanotechnology of South Ural State University: Doctor of Physical and Mathematical Sciences, Professor Kuzmenko Alexander Pavlovich and Evgeny Novikov for their help in obtaining AFM images, as well as valuable comments when discussing the results.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Такетоми С., Тикадзуми С. Магнитные жидкости. М.: Мир, 1993. 272 с.</mixed-citation><mixed-citation xml:lang="en">Taketomi S., Chikazumi S. Magnitnye zhidkosti [Magnetic fluids]. Moscow, Mir Publ., 1993. 272 p.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Rosensweig R. E. Ferrohydrodynamics. 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