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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 C for 14 hours and hot pressed at 2000 psi at 400 C for 3 hours. The hot pressed part is carbonized at 650 C under nitrogen for 3 hours and graphitized at 2400 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. 12 figs.

Inventors:
; ;
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
321239
Patent Number(s):
5871838
Application Number:
PAN: 8-774,748
Assignee:
Lockheed Martin Energy Systems, Inc., Oak Ridge, TN (United States)
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 16 Feb 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COMPOSITE MATERIALS; CARBON FIBERS; CARBONACEOUS MATERIALS; MATRIX MATERIALS; MOLDING; DRYING; HOT PRESSING; CARBONIZATION; GRAPHITIZATION; DENSITY

Citation Formats

Klett, J W, Burchell, T D, and Bailey, J L. Method for rapid fabrication of fiber preforms and structural composite materials. United States: N. p., 1999. Web.
Klett, J W, Burchell, T D, & Bailey, J L. Method for rapid fabrication of fiber preforms and structural composite materials. United States.
Klett, J W, Burchell, T D, and Bailey, J L. Tue . "Method for rapid fabrication of fiber preforms and structural composite materials". United States.
@article{osti_321239,
title = {Method for rapid fabrication of fiber preforms and structural composite materials},
author = {Klett, J W and Burchell, T D and Bailey, J 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 C for 14 hours and hot pressed at 2000 psi at 400 C for 3 hours. The hot pressed part is carbonized at 650 C under nitrogen for 3 hours and graphitized at 2400 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. 12 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {2}
}