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Title: Improved process for the preparation of fiber-reinforced ceramic composites by chemical vapor deposition

Abstract

A specially designed apparatus provides a steep thermal gradient across the thickness of fibrous preform. A flow of gaseous ceramic matrix material is directed into the fibrous preform at the cold surface. The deposition of the matrix occurs progressively from the hot surface of the fibrous preform toward the cold surface. Such deposition prevents the surface of the fibrous preform from becoming plugged. As a result thereof, the flow of reactant matrix gases into the uninfiltrated (undeposited) portion of the fibrous preform occurs throughout the deposition process. The progressive and continuous deposition of ceramic matrix within the fibrous preform provides for a significant reduction in process time over known chemical vapor deposition processes.

Inventors:
;
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (USA)
OSTI Identifier:
5718383
Application Number:
ON: DE85011584
Assignee:
Dept. of Energy
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COMPOSITE MATERIALS; CHEMICAL VAPOR DEPOSITION; REINFORCED MATERIALS; CERAMICS; FIBERS; TEMPERATURE GRADIENTS; CHEMICAL COATING; DEPOSITION; MATERIALS; SURFACE COATING; 360301* - Composite Materials- Preparation & Fabrication- (-1987)

Citation Formats

Lackey, Jr, W J, and Caputo, A J. Improved process for the preparation of fiber-reinforced ceramic composites by chemical vapor deposition. United States: N. p., 1984. Web.
Lackey, Jr, W J, & Caputo, A J. Improved process for the preparation of fiber-reinforced ceramic composites by chemical vapor deposition. United States.
Lackey, Jr, W J, and Caputo, A J. Fri . "Improved process for the preparation of fiber-reinforced ceramic composites by chemical vapor deposition". United States.
@article{osti_5718383,
title = {Improved process for the preparation of fiber-reinforced ceramic composites by chemical vapor deposition},
author = {Lackey, Jr, W J and Caputo, A J},
abstractNote = {A specially designed apparatus provides a steep thermal gradient across the thickness of fibrous preform. A flow of gaseous ceramic matrix material is directed into the fibrous preform at the cold surface. The deposition of the matrix occurs progressively from the hot surface of the fibrous preform toward the cold surface. Such deposition prevents the surface of the fibrous preform from becoming plugged. As a result thereof, the flow of reactant matrix gases into the uninfiltrated (undeposited) portion of the fibrous preform occurs throughout the deposition process. The progressive and continuous deposition of ceramic matrix within the fibrous preform provides for a significant reduction in process time over known chemical vapor deposition processes.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {9}
}