Chapter 7. Carbon/Boron Nitride Composites: An Alternative to Carbon/Carbon
- John B. Wachtman Jr.
Published Online: 26 MAR 2008
Copyright © 1995 The American Ceramic Society
Proceedings of the 19th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 16, Issue 5
How to Cite
Cofer, C. G., Saak, A. W. and Economy, J. (1995) Carbon/Boron Nitride Composites: An Alternative to Carbon/Carbon, in Proceedings of the 19th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 16, Issue 5 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314784.ch7
- Published Online: 26 MAR 2008
- Published Print: 1 JAN 1995
Print ISBN: 9780470375389
Online ISBN: 9780470314784
- residual stress;
- thermal expansion;
Carbon/carbon (C/C) composites have become an important material for aircraft brakes and high temperature structural applications. An exciting new material has been produced by replacing the carbon matrix with boron nitride. Preliminary evaluations indicate that the carbon/boron nitride (C/BN) has distinct advantages over C/C, including a simplified processing route and a significantly higher resistance to oxidation. These features could be of considerable value in design of systems with improved properties for brakes. In this paper, progress in characterizing the oxidation, friction, and wear behavior of C/BN and C/C will be presented. Crystallographic and morphological changes induced in C/C during elevated temperature wear will also be described.