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Characterization of Pseudo-Porous SiC/C Coatings on Nextel™440 and Nicalon™ Fibers

Published online by Cambridge University Press:  15 February 2011

N.R. Khasgiwale ,
E.P. Butler ,
L. Tsakalakos ,
D.A. Hensley ,
W.R. Cannon ,
S.C. Danforth  and
S.T. Gonczy
N.R. Khasgiwale
Affiliation:
Center for Ceramic Research, Rutgers University, Piscataway, NJ 08855
E.P. Butler
Affiliation:
Center for Ceramic Research, Rutgers University, Piscataway, NJ 08855
L. Tsakalakos
Affiliation:
Center for Ceramic Research, Rutgers University, Piscataway, NJ 08855
D.A. Hensley
Affiliation:
Center for Ceramic Research, Rutgers University, Piscataway, NJ 08855
W.R. Cannon
Affiliation:
Center for Ceramic Research, Rutgers University, Piscataway, NJ 08855
S.C. Danforth
Affiliation:
Center for Ceramic Research, Rutgers University, Piscataway, NJ 08855
S.T. Gonczy
Affiliation:
Alliedsignal, Des Plaines, IL 60017
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Abstract

Pseudo-porous SiC/C coatings were deposited on Nextel™440 and Nicalon™ fibers by CVD. The morphology and chemistry of the coatings was evaluated, both before and after oxidation, using Scanning Electron Microscopy (SEM), X-Ray Diffraction Analysis (XRD), X-Ray Photoelectron Spectroscopy (XPS) and Auger spectroscopy. Coated fibers were subjected to two different oxidation treatments to assess coating stability: a) oxidation at 600°C for 20 hours, and b) oxidation at 1000°C for 20 hours. Pseudo-porous SiC/C on Nicalon™ fibers appear to be more oxidation resistant than the same coatings on Nextel™440 fibers.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 365: Symposium M – Ceramic Matrix Composites–Advanced High-Temperature Structural Materials , 1994 , 395
Copyright
Copyright © Materials Research Society 1995

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References

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