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Title: Improvements in the fabrication of ceramic-fiber-ceramic-matrix composites by chemical vapor infiltration

Abstract

Development of a new, faster process for the fabrication of ceramic-fiber-reinforced-ceramic-matrix composites by chemical vapor infiltration has continued. Composites of SiC fibers infiltrated with a matrix of either SiC or Si/sub 3/N/sub 4/ have been produced. Process and equipment improvements led to the fabrication of preforms with a higher fiber content, and infiltration improvements reduced infiltration times and increased infiltrated densities. These improvements have produced composites with higher flexural strengths (up to 475 MPa) and high strain values (up to 1%). The high strength and high strain values along with the gradual loss of strength (in contrast to the sudden loss typical of ceramics) were major goals of this work.

Authors:
; ;
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (USA)
OSTI Identifier:
5425226
Report Number(s):
ORNL/TM-9651
ON: DE85015971
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COMPOSITE MATERIALS; FLEXURAL STRENGTH; PRODUCTION; REINFORCED MATERIALS; SILICON CARBIDES; SILICON NITRIDES; CHEMICAL VAPOR DEPOSITION; FIBERS; CARBIDES; CARBON COMPOUNDS; CHEMICAL COATING; DEPOSITION; MATERIALS; MECHANICAL PROPERTIES; NITRIDES; NITROGEN COMPOUNDS; PNICTIDES; SILICON COMPOUNDS; SURFACE COATING; 360301* - Composite Materials- Preparation & Fabrication- (-1987)

Citation Formats

Caputo, A. J., Lowden, R. A., and Stinton, D. P. Improvements in the fabrication of ceramic-fiber-ceramic-matrix composites by chemical vapor infiltration. United States: N. p., 1985. Web. doi:10.2172/5425226.
Caputo, A. J., Lowden, R. A., & Stinton, D. P. Improvements in the fabrication of ceramic-fiber-ceramic-matrix composites by chemical vapor infiltration. United States. doi:10.2172/5425226.
Caputo, A. J., Lowden, R. A., and Stinton, D. P. Sat . "Improvements in the fabrication of ceramic-fiber-ceramic-matrix composites by chemical vapor infiltration". United States. doi:10.2172/5425226. https://www.osti.gov/servlets/purl/5425226.
@article{osti_5425226,
title = {Improvements in the fabrication of ceramic-fiber-ceramic-matrix composites by chemical vapor infiltration},
author = {Caputo, A. J. and Lowden, R. A. and Stinton, D. P.},
abstractNote = {Development of a new, faster process for the fabrication of ceramic-fiber-reinforced-ceramic-matrix composites by chemical vapor infiltration has continued. Composites of SiC fibers infiltrated with a matrix of either SiC or Si/sub 3/N/sub 4/ have been produced. Process and equipment improvements led to the fabrication of preforms with a higher fiber content, and infiltration improvements reduced infiltration times and increased infiltrated densities. These improvements have produced composites with higher flexural strengths (up to 475 MPa) and high strain values (up to 1%). The high strength and high strain values along with the gradual loss of strength (in contrast to the sudden loss typical of ceramics) were major goals of this work.},
doi = {10.2172/5425226},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {6}
}