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Journal of Materials Science

, Volume 30, Issue 20, pp 5125–5129 | Cite as

Pressure pulsed chemical vapour infiltration of SiC to two-dimensional-Tyranno/SiC-C preforms

  • Kohzo Sygiyama
  • Kazutoshi Yoshida
Article

Abstract

Preforms of two-dimensional Tyranno fibre (SiC base) of 7×20×1.3 mm3 were chemically vapour infiltrated with SiC at 850–1050 °C from a gas mixture of CH3SiCl3 (6%)-H2 using pressure pulses between below 0.3 kPa and 0.1 MPa. Above 900 °C, films grew on the macrosurface dominantly. At 850 °C, residual porosity decreased to about 10% after 105 pulses, and three point flexural strength reached about 200 MPa. X-ray diffractograms (XRDs) on the surface showed the deposits to be β-SiC only.

Keywords

Polymer Porosity Chemical Vapour Material Processing Pressure Pulse 
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 & Hall 1995

Authors and Affiliations

  • Kohzo Sygiyama
    • 1
  • Kazutoshi Yoshida
    • 1
  1. 1.Department of Applied ChemistryAichi Institute of TechnologyToyodaJapan

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