Abstract
The possibilities of using crystallization of liquid aluminum in the centrifuge field to create gradient composite materials (CM) reinforced by SiC and ZrO2 nanosized particles are investigated. It is shown that introduction of prepressed mixtures of Al powders and nanosized particles into the source melt makes it possible to obtain their uniform distribution in CM when performing experiments with the gravitation coefficient of 250. It is found that nanosized particles of SiC interact with aluminum forming Al4C3. The growth of the end composite grain in the case of an increased concentration of nanosized particles is observed. A complex dependence of the ultimate bending strength of the obtained CM which is explained only using a gradient model of the interphase layer proposed in the works of the Obraztsov scientific school is found.
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Original Russian Text © O.V. Anisimov, V.I. Kostikov, Yu.V. Shtankin, 2010, published in Perspektivnye Materialy, 2010, No. 2, pp. 5–10.
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Anisimov, O.V., Kostikov, V.I. & Shtankin, Y.V. Development of metallic composites based on aluminum using liquid metal crystallization in the centrifuge field. Inorg. Mater. Appl. Res. 1, 271–275 (2010). https://doi.org/10.1134/S2075113310040015
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DOI: https://doi.org/10.1134/S2075113310040015