Chapter 36. Development of SiC/SiC Composites by Nano-Infiltration and Transient Eutectoid (NITE) Process

  1. Hua-Tay Lin and
  2. Mrityunjay Singh
  1. Akira Kohyama1,2,
  2. Shaoming Dong2 and
  3. Yutai Katoh1,2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294741.ch36

26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 23, Issue 3

26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 23, Issue 3

How to Cite

Kohyama, A., Dong, S. and Katoh, Y. (2002) Development of SiC/SiC Composites by Nano-Infiltration and Transient Eutectoid (NITE) Process, in 26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 23, Issue 3 (eds H.-T. Lin and M. Singh), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294741.ch36

Author Information

  1. 1

    Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611–0011, Japan

  2. 2

    CREST-ACE, JST Gokasho, Uji, Kyoto 611–0011, Japan

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2002

ISBN Information

Print ISBN: 9780470375785

Online ISBN: 9780470294741

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Keywords:

  • densification;
  • sintering;
  • permeability;
  • thermodynamically;
  • micrometer powder

Summary

A new process of ceramic matrix composite production, named Nano-powder Infiltration and Transient Eutectoid (NITE) process, has been developed and unidirectional SiC/SiC composites were prepared, and the effects of densification conditions on the microstructural evolution and mechanical properties were investigated. Carbon coated fibers were used as reinforcement and SiC nano-powders were used for matrix formation with certain amount of sintering aids. Density of the composites was improved with the increment of either temperature or pressure. Simultaneously, the interaction between fibers and matrix became strong. Highest tensile strength was obtained at 1780C under 20MPa in this work. Many potential advantages of the NITE process were demonstrated; promising mechanical properties, moderate to high thermal conductivity, extremely low gas permeability and low production cost.