The results of an investigation of the processes underlying the formation of hollow aluminum-magnesia microspheres by chemical dispersion of magnesium-aluminum alloys with heightened content of magnesium are reported. The mechanism of the formation of microspheres and the factors determining their structural features and sizes are elaborated. It is shown that magnesium additives influence the formation of the structure of hollow microspheres and their number. The fine structure of the powders before and after heat-treatment was studied.
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This work was supported by the Ministry of Science and Higher Education of the Russian Federation under Presidential Grant No. MK-1449.2019.8 for the subject ‘Obtaining, studying, and applying hollow microspheres of aluminummagnesium spinel as an initial powder raw material for the production of high-performance ceramic’ using equipment from the Collective Use Center at Moscow Polytech.
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Translated from Steklo i Keramika, No. 1, pp. 3 – 9, January, 2020.
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Vasin, A.A., Tarasovskii, V.P., Smirnov, A.V. et al. Structure and Phase Formation Mechanism for Hollow Spheres of Aluminum-Magnesia Spinel in Obtaining Powders by Chemical Dispersion of Aluminum-Magnesium Alloys. Glass Ceram 77, 3–8 (2020). https://doi.org/10.1007/s10717-020-00226-3
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DOI: https://doi.org/10.1007/s10717-020-00226-3