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Title: Fiber-reinforced ceramic composites made by chemical vapor infiltration

Abstract

A process was developed for the fabrication of ceramic-fiber-reinforced ceramic-matrix composites by chemical vapor infiltration. The ceramic composites were prepared by making fibrous preforms from multiple layers of SiC cloth and forming the silicon-carbide matrix for each component specimen by infiltrating the fibrous preform by a chemical vapor deposition process. A major goal of the work was achieved when infiltration was accomplished in hours instead of weeks by combining the thermal-gradient and forced-gas-flow techniques. Composites that possessed moderate flexural strength and high strain to failure were produced. In addition, the strength of the composites decreased gradually after the maximum strength was obtained, demonstrating that the composites had the desired high toughness and avoided the typical brittle behavior of monolithic ceramics.

Authors:
; ;
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (USA)
OSTI Identifier:
5385771
Report Number(s):
DOE/OR/21400-T100
ON: DE85015587
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COMPOSITE MATERIALS; FABRICATION; REINFORCED MATERIALS; SILICON CARBIDES; CHEMICAL VAPOR DEPOSITION; FIBERS; MECHANICAL PROPERTIES; TEXTILES; CARBIDES; CARBON COMPOUNDS; CHEMICAL COATING; DEPOSITION; MATERIALS; SILICON COMPOUNDS; SURFACE COATING; 360301* - Composite Materials- Preparation & Fabrication- (-1987)

Citation Formats

Caputo, A J, Lowden, R A, and Stinton, D P. Fiber-reinforced ceramic composites made by chemical vapor infiltration. United States: N. p., 1985. Web.
Caputo, A J, Lowden, R A, & Stinton, D P. Fiber-reinforced ceramic composites made by chemical vapor infiltration. United States.
Caputo, A J, Lowden, R A, and Stinton, D P. Tue . "Fiber-reinforced ceramic composites made by chemical vapor infiltration". United States.
@article{osti_5385771,
title = {Fiber-reinforced ceramic composites made by chemical vapor infiltration},
author = {Caputo, A J and Lowden, R A and Stinton, D P},
abstractNote = {A process was developed for the fabrication of ceramic-fiber-reinforced ceramic-matrix composites by chemical vapor infiltration. The ceramic composites were prepared by making fibrous preforms from multiple layers of SiC cloth and forming the silicon-carbide matrix for each component specimen by infiltrating the fibrous preform by a chemical vapor deposition process. A major goal of the work was achieved when infiltration was accomplished in hours instead of weeks by combining the thermal-gradient and forced-gas-flow techniques. Composites that possessed moderate flexural strength and high strain to failure were produced. In addition, the strength of the composites decreased gradually after the maximum strength was obtained, demonstrating that the composites had the desired high toughness and avoided the typical brittle behavior of monolithic ceramics.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {1}
}

Technical Report:
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