Chapter 12. Continuous Examination of SiC Fiber-Reinforced Alumina with MRI, FT-IR, and SEM
- John B. Wachtman Jr.
Published Online: 26 MAR 2008
Copyright © 1990 The American Ceramic Society, Inc.
14th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 11, Issue 9/10
How to Cite
Karunanithy, S. (1990) Continuous Examination of SiC Fiber-Reinforced Alumina with MRI, FT-IR, and SEM, in 14th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 11, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470313053.ch12
- Published Online: 26 MAR 2008
- Published Print: 1 JAN 1990
Print ISBN: 9780470374931
Online ISBN: 9780470313053
Analytical techniques such as magnetic resonance imaging (MRI) and Fourier Transform infrared spectroscopy (FT-IR) have been applied for continuous testing of fiber-reinforced ceramics. MRI can be applied nondestructively to detect such physical flaws as agglomerates of the fibers and open pores present in the green state composites made by slipcasting. Examination of the composites after sintering using SEM confirms the results obtained by MRI. The SiC fibers undergo surface oxidation during the sintering process. However, FT-IR analysis of the composite shows that further oxidation of the fibers is prevented when the grains of the sintering aid form a coating on the fiber surface during the sintering process.