4. Preparation and Characterization of Magnesium-Silicon Based Oxide Coating on High-Crystalline SiC Fiber as an Interphase in SiC/SiC Composite

  1. Edgar Lara-Curzio
  1. Naoki Igawa,
  2. Tomitsugu Taguchi,
  3. Reiji Yamada,
  4. Yoshinobu Ishii and
  5. Shiro Jitsukawa

Published Online: 26 MAR 2008

DOI: 10.1002/9780470291221.ch4

Mechanical Properties and Performance of Engineering Ceramics and Composites: Ceramic Engineering and Science Proceedings, Volume 26, Number 2

Mechanical Properties and Performance of Engineering Ceramics and Composites: Ceramic Engineering and Science Proceedings, Volume 26, Number 2

How to Cite

Igawa, N., Taguchi, T., Yamada, R., Ishii, Y. and Jitsukawa, S. (2005) Preparation and Characterization of Magnesium-Silicon Based Oxide Coating on High-Crystalline SiC Fiber as an Interphase in SiC/SiC Composite, in Mechanical Properties and Performance of Engineering Ceramics and Composites: Ceramic Engineering and Science Proceedings, Volume 26, Number 2 (ed E. Lara-Curzio), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470291221.ch4

Author Information

  1. Japan Atomic Energy Research Institute Tokai-mura, Ibaraki-ken, 319-1195, Japan

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2005

ISBN Information

Print ISBN: 9781574982329

Online ISBN: 9780470291221

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Keywords:

  • fibers coatings;
  • scanning electron microscopy;
  • neutron radiation-resistance;
  • thermal expansion mismatch;
  • x-ray difiactometer

Summary

Mg-Si-O coating on the advanced SiC fibers as an interphase of SiC/SiC composites was prepared by the alkoxide method. Almost all fiber surface was coated completely by 5 times dipping into the coating solution of [Mg]T = 0.50 mol/dm3 and [Si]T = 0.25 mol/dm3. The phases of the coating were a mixture of MgO, MgSiO3, Mg2SiO4 and SiO2 up to 1400°C in air. The tensile strengths of the coated fibers were retained those of as-received fiber below 1400°C, while those were slightly degraded at 1400°C.