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Title: Method for rapid fabrication of fiber preforms and structural composite materials

Abstract

A densified carbon matrix carbon fiber composite preform is made by vacuum molding an aqueous slurry of carbon fibers and carbonizable organic powder to form a molded part. The molded part is dried in an oven at 50.degree. C. for 14 hours and hot pressed at 2000 psi at 400.degree. C. for 3 hours. The hot pressed part is carbonized at 650.degree. C. under nitrogen for 3 hours and graphitized at 2400.degree. C. to form a graphitic structure in the matrix of the densified carbon matrix carbon fiber composite preform. The densified preform has a density greater than 1.1 g/cc.

Inventors:
 [1];  [2];  [3]
  1. (Knoxville, TN)
  2. (Oak Ridge, TN)
  3. (Clinton, TN)
Publication Date:
Research Org.:
LOCKHEED MARTIN ENRGY SYST INC
OSTI Identifier:
871503
Patent Number(s):
US 5744075
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN) ORNL
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; rapid; fabrication; fiber; preforms; structural; composite; materials; densified; carbon; matrix; preform; vacuum; molding; aqueous; slurry; fibers; carbonizable; organic; powder; form; molded; dried; oven; 50; degree; 14; hours; hot; pressed; 2000; psi; 400; carbonized; 650; nitrogen; graphitized; 2400; graphitic; structure; density; cc; composite preform; vacuum molding; matrix carbon; hot pressed; carbon fibers; composite materials; carbon fiber; composite material; fiber composite; aqueous slurry; carbon matrix; organic powder; densified carbon; hot press; carbonizable organic; rapid fabrication; structural composite; composite mat; fiber preform; fiber preforms; omposite materials; /264/

Citation Formats

Klett, James W., Burchell, Timothy D., and Bailey, Jeffrey L. Method for rapid fabrication of fiber preforms and structural composite materials. United States: N. p., 1998. Web.
Klett, James W., Burchell, Timothy D., & Bailey, Jeffrey L. Method for rapid fabrication of fiber preforms and structural composite materials. United States.
Klett, James W., Burchell, Timothy D., and Bailey, Jeffrey L. Thu . "Method for rapid fabrication of fiber preforms and structural composite materials". United States. https://www.osti.gov/servlets/purl/871503.
@article{osti_871503,
title = {Method for rapid fabrication of fiber preforms and structural composite materials},
author = {Klett, James W. and Burchell, Timothy D. and Bailey, Jeffrey L.},
abstractNote = {A densified carbon matrix carbon fiber composite preform is made by vacuum molding an aqueous slurry of carbon fibers and carbonizable organic powder to form a molded part. The molded part is dried in an oven at 50.degree. C. for 14 hours and hot pressed at 2000 psi at 400.degree. C. for 3 hours. The hot pressed part is carbonized at 650.degree. C. under nitrogen for 3 hours and graphitized at 2400.degree. C. to form a graphitic structure in the matrix of the densified carbon matrix carbon fiber composite preform. The densified preform has a density greater than 1.1 g/cc.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

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