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Evaluation of SiC-porcelain ceramics as the material for monolithic catalyst supports

Abstract

Mechanical and thermal properties of SiC-porcelain ceramics were studied in the wide SiC content range of 0–95%. Microstructure evolution, shrinkage at sintering, porosity, mechanical strength, elastic modulus, coefficient of thermal expansion (CTE) and thermal conductivity were studied depending on SiC content. The optimal sintering temperature was 1200 °C, and the maximum mechanical strength corresponded to SiC content of 90%. Parametric evaluation of the ceramic thermal shock resistance revealed its great potential for thermal cycling applications. It was demonstrated that the open-cell foam catalyst supports can be manufactured from SiC-porcelain ceramics by the polyurethane foam replication process.

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Correspondence to Oleg Smorygo.

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Smorygo, O., Marukovich, A., Mikutski, V. et al. Evaluation of SiC-porcelain ceramics as the material for monolithic catalyst supports. J Adv Ceram 3, 230–239 (2014). https://doi.org/10.1007/s40145-014-0114-0

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  • DOI: https://doi.org/10.1007/s40145-014-0114-0

Keywords

  • SiC
  • porcelain
  • mechanical properties
  • thermal properties
  • foam