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Characterization Of Ceramic Matrix Composites Fabricated By Chemical Vapor Infiltration

Published online by Cambridge University Press:  21 February 2011

D. P. Stinton ,
D. M. Hembree JR. ,
K. L. More ,
B. W. Sheldon  and
T. M. Besmann
D. P. Stinton
Affiliation:
Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831
D. M. Hembree JR.
Affiliation:
Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831
K. L. More
Affiliation:
Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831
B. W. Sheldon
Affiliation:
Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831
T. M. Besmann
Affiliation:
Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831
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Abstract

A process for the preparation of fiber-reinforced SiC composites by chemical vapor deposition has been developed at Oak Ridge National Laboratory. Composites are prepared by infiltrating fibrous preforms with reactant gases that decompose at elevated temperatures to deposit silicon carbide between and around the fibers. Because the infiltration process utilizes both temperature and pressure gradients, SiC is deposited under conditions that vary considerably from the hot face to the cool face of the composite. Matrix characterization of composite samples by transmission electron microscopy and Raman spectroscopy are described.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 168 , 1989 , 273
Copyright
Copyright © Materials Research Society 1990

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