powderИзвестия вузов. Порошковая металлургия и функциональные покрытияPowder Metallurgy аnd Functional Coatings (Izvestiya Vuzov. Poroshkovaya Metallurgiya i Funktsional'nye Pokrytiya)1997-308X2412-8767НИТУ "МИСИС"10.17073/1997-308X-2025-6-44-51powder-1062Research ArticleТугоплавкие, керамические и композиционные материалыRefractory, Ceramic, and Composite MaterialsПолучение алюмоматричных композитов Al–SiO2 с использованием аморфного микрокремнеземаAluminum matrix composites Al–SiO2 produced using amorphous microsilicahttps://orcid.org/0000-0002-8714-5004КузьминМ. П.Kuz’minM. P.

Михаил Петрович Кузьмин – к.т.н., доцент кафедры металлургии цветных металлов

Россия, 664074, г. Иркутск, ул. Лермонтова, 83

Mikhail P. Kuz’min – Cand. Sci. (Eng.), Associate Professor, Department of Metallurgy of Non-Ferrous Metals

83 Lermontov Str., Irkutsk 664074, Russia

mike12008@yandex.ruhttps://orcid.org/0000-0001-7215-5501КузьминаМ. Ю.Kuz’minaM. Yu.

Марина Юрьевна Кузьмина – к.х.н., доцент кафедры металлургии цветных металлов

Россия, 664074, г. Иркутск, ул. Лермонтова, 83

Marina Yu. Kuz’mina – Cand. Sci. (Chem.), Associate Professor, Department of Metallurgy of Non-Ferrous

83 Lermontov Str., Irkutsk 664074, Russia Metals

kuzmina.my@yandex.ruhttps://orcid.org/0000-0001-9553-5179КузьминаА. С.Kuz’minaA. S.

Алина Сергеевна Кузьмина – к.ф.-м. н., доцент кафедры радио­электроники и телекоммуникационных систем

Россия, 664074, г. Иркутск, ул. Лермонтова, 83

Alina S. Kuz’mina – Cand. Sci. (Phys.-Math.), Associate Professor, Department of Radioelectronics and Telecommunication Systems

83 Lermontov Str., Irkutsk 664074, Russia

kuzmina.istu@gmail.comИркутский национальный исследовательский технический университетРоссияIrkutsk National Research Technical UniversityRussian Federation2025100120261964451Copyright © НИТУ "МИСИС", 20262026НИТУ "МИСИС"НИТУ "МИСИС"https://powder.misis.ru/jour/about/submissions#copyrightNoticehttps://powder.misis.ru/jour/article/view/1062

Проведены исследования, направленные на получение алюмоматричных композитов, армированных частицами аморфного микрокремнезема. Установлена возможность получения материалов системы Al–5SiO2 (мас. %) с использованием методов литья с интенсивным перемешиванием и полутвердого металлического литья. Наибольшую эффективность продемонстрировал второй способ с последующей жидкой штамповкой. Показана возможность использования магния в качестве поверхностно-активной добавки, способствующей удалению кислорода с поверхности дисперсных частиц и улучшению механических свойств композиционного материала в процессе термообработки. Полученный композит имеет равномерное распределение дисперсных частиц микрокремнезема в объеме металла, обладает твердостью, коррозионной стойкостью и удельным весом, превосходящими аналогичные характеристики исходного алюминиевого сплава. Таким образом, полученные с использованием разработанной технологии материалы могут быть востребованы во всех сферах транспортного машиностроения, а также в отраслях авиационной и космической промышленности.

Studies were carried out to develop aluminum matrix composites reinforced with amorphous microsilica particles. The feasibility of producing Al–5 wt. % SiO2 materials using both stirring-assisted casting and semisolid metal processing was established. The latter method, when combined with subsequent squeeze casting, demonstrated the highest efficiency. Magnesium was shown to function as a surface-active additive that removes oxygen from the surfaces of the dispersed particles and enhances the mechanical properties of the composite during heat treatment. The resulting material exhibits a uniform distribution of microsilica particles throughout the aluminum matrix and demonstrates hardness, corrosion resistance, and reduced specific weight superior to those of the base AlSi7 alloy. Therefore, the composites produced using the developed technology are promising for applications in transport engineering as well as in the aerospace and space industries.

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