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Journal of Materials Science

, Volume 26, Issue 13, pp 3463–3476 | Cite as

Formation of silicon carbide whiskers and their microstructure

  • A. Chrysanthou
  • P. Grieveson
  • A. Jha
Papers

Abstract

Thermodynamic and kinetic conditions for the formation of SiC whiskers are established. The mechanism of their nucleation and growth are studied and, on this basis, the magnitude of the thermally activated barrier is determined from the rate of reduction data. The microstructures of whiskers are analysed and the role of interfacial tension between the nuclei and impurities, and the metallic iron catalyst is studied in relation to the formation of SiC whiskers. A possible reason for polytypism in SiC whiskers is also proposed.

Keywords

Iron Polymer Silicon Microstructure Carbide 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman and Hall Ltd. 1991

Authors and Affiliations

  • A. Chrysanthou
    • 1
  • P. Grieveson
    • 1
  • A. Jha
    • 2
  1. 1.Department of MaterialsImperial College of Science and TechnologyLondonUK
  2. 2.Department of Materials TechnologyBrunel UniversityUxbridgeUK

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