Microcellular carbon foam and method

Patent · Fri Jan 01 04:00:00 EST 1993

OSTI ID:869054

Simandl, Ronald F ^[1]; Brown, John D ^[2]

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1. Farragut, TN
2. Harriman, TN

A microcellular carbon foam characterized by a density in the range of about 30 to 1000 mg/cm.sup.3, substantially uniform distribution of cell sizes of diameters less than 100 .mu.m with a majority of the cells being of a diameter of less than about 10 .mu.m, well interconnected strut morphology providing open porosity, and an expanded d(002) X-ray turbostatic spacing greater than 3.50 angstroms. The precursor for the carbon foam is prepared by the phase inversion of polyacrylonitrile in a solution consisting essentially of at least one alkali metal halide and a phase inversion solvent for the polyacrylonitrile.

• 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 5268395
• OSTI ID: 869054
• Country of Publication: United States
• Language: English

Related Subjects

/521/264/
002
10
100
1000
30
50
alkali
alkali metal
angstroms
carbon
carbon foam
cell
cell size
cell sizes
cells
characterized
cm
consisting
consisting essentially
density
diameter
diameters
distribution
essentially
expanded
foam
foam characterized
halide
interconnected
interconnected strut
inversion
inversion solvent
majority
metal
metal halide
method
mg
microcellular
microcellular carbon
morphology
morphology providing
phase
phase inversion
polyacrylonitrile
porosity
precursor
prepared
providing
range
sizes
solution
solution consisting
solvent
spacing
strut
strut morphology
substantially
substantially uniform
turbostatic
turbostatic spacing
uniform
uniform distribution
x-ray
x-ray turbostatic