Chapter 31. Deposition Kinetics in Forced Flow/Thermal Gradient CVI
- John B. Wachtman Jr.
Published Online: 28 MAR 2008
Copyright © 1988 The American Ceramic Society, Inc.
Proceedings of the 12th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 7/8
How to Cite
Starr, T. L. (1988) Deposition Kinetics in Forced Flow/Thermal Gradient CVI, in Proceedings of the 12th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 7/8 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310496.ch31
- Published Online: 28 MAR 2008
- Published Print: 1 JAN 1988
Print ISBN: 9780470374801
Online ISBN: 9780470310496
- thermal expansion;
Forced flow/thermal gradient chemical vapor infiltration (CVI) can produce high quality ceramic composites with dramatically improved processing times. An analytical model developed for this process shows good agreement with experimental studies. The model reveals an interdependency between flow rate and temperature gradient that determines the deposition profile through the composite and the overall deposition rate. Proper balancing of these parameters produces nearly uniform deposition through the thickness of the composite, rapid densification, and efficient reagent utilization.