Chapter 45. Environmental Limits for High-Temperature Si3N4-Based Ceramics
- John B. Wachtman Jr.
Published Online: 26 MAR 2008
Copyright © 1989 The American Ceramic Society, Inc.
A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 7/8
How to Cite
Mason, S., Lewis, M. H. and Reed, C. J. (1989) Environmental Limits for High-Temperature Si3N4-Based Ceramics, in A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 7/8 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310557.ch45
- Published Online: 26 MAR 2008
- Published Print: 1 JAN 1989
Print ISBN: 9780470374863
Online ISBN: 9780470310557
- chemical vapor deposition;
- fiber-reinforced ceramic composites;
- chemical vapor infiltration;
- high fracture toughness;
- carbon-carbon composites
The high-temperature limit for application of β-Si3N4-based ceramics is frequently dictated by the oxidizing and corrosive operational environment. This problem is exemplified for Sialon ceramics by the reversion of a crystalline matrix phase to the liquid state in oxidizing environments or by the formation interface in corrosive environments leading to a large reduction in strength. Palliative treatments, involving the formation of CVD diffusion barriers of Si3N4 and SiC, have been investigated.