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Title: Fabrication of fiber-reinforced composites by chemical vapor infiltration

Abstract

A two-step forced chemical vapor infiltration process was developed that reduced infiltration times for 4.45 cm dia. by 1.27 cm thick Nicalon{sup +} fiber preforms by two thirds while maintaining final densities near 90 %. In the first stage of the process, micro-voids within fiber bundles in the cloth were uniformly infiltrated throughout the preform. In the second stage, the deposition rate was increased to more rapidly fill the macro-voids between bundles within the cloth and between layers of cloth. By varying the thermal gradient across the preform uniform infiltration rates were maintained and high final densities achieved.

Authors:
 [1]; ;  [2]
  1. Univ. of Tennessee, Knoxville, TN (United States)
  2. Oak Ridge National Lab., TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
416487
Report Number(s):
ORNL/FMP-95/1; CONF-9505204-
ON: DE96001412; TRN: 96:006558-0012
Resource Type:
Conference
Resource Relation:
Conference: 9. annual conference on fossil energy materials, Oak Ridge, TN (United States), 16-18 May 1995; Other Information: PBD: Aug 1995; Related Information: Is Part Of Proceedings of the ninth annual conference on fossil energy materials; Cole, N.C.; Judkins, R.R. [comps.]; PB: 522 p.
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; SILICON CARBIDES; DENSITY; VOIDS; CHEMICAL VAPOR DEPOSITION; TIME DEPENDENCE; SILICON CHLORIDES; METHYL CHLORIDE

Citation Formats

Matlin, W M, Stinton, D P, and Besmann, T M. Fabrication of fiber-reinforced composites by chemical vapor infiltration. United States: N. p., 1995. Web.
Matlin, W M, Stinton, D P, & Besmann, T M. Fabrication of fiber-reinforced composites by chemical vapor infiltration. United States.
Matlin, W M, Stinton, D P, and Besmann, T M. 1995. "Fabrication of fiber-reinforced composites by chemical vapor infiltration". United States. https://www.osti.gov/servlets/purl/416487.
@article{osti_416487,
title = {Fabrication of fiber-reinforced composites by chemical vapor infiltration},
author = {Matlin, W M and Stinton, D P and Besmann, T M},
abstractNote = {A two-step forced chemical vapor infiltration process was developed that reduced infiltration times for 4.45 cm dia. by 1.27 cm thick Nicalon{sup +} fiber preforms by two thirds while maintaining final densities near 90 %. In the first stage of the process, micro-voids within fiber bundles in the cloth were uniformly infiltrated throughout the preform. In the second stage, the deposition rate was increased to more rapidly fill the macro-voids between bundles within the cloth and between layers of cloth. By varying the thermal gradient across the preform uniform infiltration rates were maintained and high final densities achieved.},
doi = {},
url = {https://www.osti.gov/biblio/416487}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 01 00:00:00 EDT 1995},
month = {Tue Aug 01 00:00:00 EDT 1995}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

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