Chapter 33. The Role of Interfaces in the Oxidation of 3D-Carbon/Carbon Composites
- Hua-Tay Lin,
- Mrityunjay Singh
Published Online: 26 MAR 2008
DOI: 10.1002/9780470294741.ch33
Copyright © 2002 The American Ceramic Society
Book Title
26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 23, Issue 3
Additional Information
How to Cite
Naslain, R., Pailler, R., Bourrat, X., Labruquere, S. and Duvivier, E. (2008) The Role of Interfaces in the Oxidation of 3D-Carbon/Carbon Composites, 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.ch33
Publication History
- Published Online: 26 MAR 2008
- Published Print: 1 JAN 2002
Book Series:
ISBN Information
Print ISBN: 9780470375785
Online ISBN: 9780470294741
- Summary
- Chapter
- References
Keywords:
- microtexture;
- oxidation;
- density;
- fabrication;
- microtexture
Summary
Oxidation of C/C composites fabricated from PAN-based fibers was studied in flowing dry air at 600°C. It preferentially occurs at the fiber/matrix interfaces with a kinetics depending upon the microtexture of the carbons and the catalytic impurities present at the interfaces. The influence of fiber coatings (H3PO4, H3BO3, B-C, Si-C and Si-B-C) is studied. Boron-rich Si-B-C fiber coatings significantly reduce the oxidation rates due to the rapid formation of a fluid oxide phase healing the annular pore formed around each fiber at the composite surface.