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Special features of the formation of the structure of highly porous cellular materials based on reaction-sintered silicon carbide

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Abstract

Special features of the structure of highly porous cellular materials containing reaction-sintered silicon carbide are investigated. The effect of the ratio of the initial components of the synthesis (silicon and carbon) on the quantitative and qualitative characteristics of micropores formed during the reaction sintering of silicon carbide is studied. Formulas for calculating the microporosity are presented. The distribution of micropores in the structure components of highly porous cellular materials is analyzed. The influence of the chemical composition and the macro- and microporosity on the strength parameters of highly porous materials is investigated. It is established that despite the maximum microporosity, the strength of highly porous silicon carbide is the highest as compared to the investigated materials containing free silicon or carbon.

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Authors and Affiliations

  1. Research Institute for Problems of Powder Technology and Coatings, Republic Technical Center of Powder Metallurgy, Perm', Russia

    V. N. Antsiferov & N. M. Avdeeva

Authors
  1. V. N. Antsiferov
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  2. N. M. Avdeeva
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Translated from Ogneupory, No. 2, pp. 8 – 12, February, 1995.

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Antsiferov, V.N., Avdeeva, N.M. Special features of the formation of the structure of highly porous cellular materials based on reaction-sintered silicon carbide. Refractories 36, 42–46 (1995). https://doi.org/10.1007/BF02226987

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  • DOI: https://doi.org/10.1007/BF02226987

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