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Thermal stability of MoSi2-SiC composites in air at temperatures of 1100–1400°C

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Abstract

Composites xMoSi2-(100 − x)SiC are prepared over a wide composition range (x= 10–90 mol %) by hot and cold pressing methods. The optimum pressing parameters (temperature, pressure, time) are determined. The heat resistance, the thermal stability, the porosity, and the phase composition of the composites are investigated after heat treatment for 100 h in an air atmosphere. Comparative data on the heat resistance and the porosity of the composites are analyzed as a function of the composition, the temperature (1100, 1400°C), and the preparation technique. The range of optimum compositions of the materials characterized by a low porosity and a high thermal stability is established.

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Authors and Affiliations

  1. Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences, nab. Makarova 2, St. Petersburg, 199034, Russia

    M. V. Sazonova & L. P. Efimenko

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  1. M. V. Sazonova
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  2. L. P. Efimenko
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Original Russian Text © M.V. Sazonova, L.P. Efimenko, 2009, published in Fizika i Khimiya Stekla.

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Sazonova, M.V., Efimenko, L.P. Thermal stability of MoSi2-SiC composites in air at temperatures of 1100–1400°C. Glass Phys Chem 35, 219–224 (2009). https://doi.org/10.1134/S1087659609020151

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  • DOI: https://doi.org/10.1134/S1087659609020151

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