Combustion, Explosion and Shock Waves

, Volume 42, Issue 5, pp 543–548 | Cite as

Activated combustion of a silicon—carbon mixture in nitrogen and SHS of Si3N4—SiC composite ceramic powders and silicon carbide

  • G. L. Khachatryan
  • A. B. Arutyunyan
  • S. L. Kharatyan


It is established that Si3N4—SiC composites with a mass content of SiC 5–60% and a dominating content of the β-modification of silicon nitride can be produced by interaction of the components in the Si—C—N2 system in the combustion regime. It is found that the fraction of α-Si3N4 can be increased by diluting the starting mixture with the end products, but this leads to the occurrence of a certain amount of unreacted silicon in the products. It is shown that the use of chemical activation allows one to perform a single-stage synthesis of Si3N4—SiC composites with any contents of the individual components (from 0 to 100%), including pure carbide silicon.

Key words

solid phase combustion chemical activation silicon carbide silicon nitride 


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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • G. L. Khachatryan
    • 1
    • 2
  • A. B. Arutyunyan
    • 1
  • S. L. Kharatyan
    • 1
    • 2
  1. 1.Nalbandyan Institute of Chemical PhysicsNational Academy of SciencesYerevanRepublic of Armeniya
  2. 2.Yerevan State UniversityYerevanRepublic of Armenia

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