Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Method for rapid fabrication of fiber preforms and structural composite materials

Patent ·
OSTI ID:871503
 [1];  [2];  [3]
  1. Knoxville, TN
  2. Oak Ridge, TN
  3. Clinton, TN
+ Show Author Affiliations
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.
Research Organization:
LOCKHEED MARTIN ENRGY SYST INC
DOE Contract Number:
AC05-84OR21400
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
Patent Number(s):
US 5744075
OSTI ID:
871503
Country of Publication:
United States
Language:
English

References (2)

Pitch-based processing of carbon-carbon composites journal January 1989
Carbon-Carbon Matrix Materials book January 1993

Similar Records

Method for rapid fabrication of fiber preforms and structural composite materials
Patent · Thu Dec 31 23:00:00 EST 1998 · OSTI ID:872151
Method for rapid fabrication of fiber preforms and structural composite materials
Patent · Mon Feb 15 23:00:00 EST 1999 · OSTI ID:321239
Method for rapid fabrication of fiber preforms and structural composite materials
Patent · Tue Apr 28 00:00:00 EDT 1998 · OSTI ID:644429

Related Subjects

/264/
14
2000
2400
400
50
650
aqueous
aqueous slurry
carbon
carbon fiber
carbon fibers
carbon matrix
carbonizable
carbonizable organic
carbonized
cc
composite
composite mat
composite material
composite materials
composite preform
degree
densified
densified carbon
density
dried
fabrication
fiber
fiber composite
fiber preform
fiber preforms
fibers
form
graphitic
graphitized
hot
hot press
hot pressed
hours
materials
matrix
matrix carbon
method
molded
molding
nitrogen
omposite materials
organic
organic powder
oven
powder
preform
preforms
pressed
psi
rapid
rapid fabrication
slurry
structural
structural composite
structure
vacuum
vacuum molding