Microcellular carbon foam and method

Patent · Fri Jan 01 00:00:00 EST 1993

OSTI ID:868769

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: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• DOE Contract Number: AC05-84OR21400
• Assignee: Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
• Patent Number(s): US 5208003
• OSTI ID: 868769
• Country of Publication: United States
• Language: English

Related Subjects

microcellular
carbon
foam
method
characterized
density
range
30
1000
mg
cm
substantially
uniform
distribution
cell
sizes
diameters
100
majority
cells
diameter
10
interconnected
strut
morphology
providing
porosity
expanded
002
x-ray
turbostatic
spacing
50
angstroms
precursor
prepared
phase
inversion
polyacrylonitrile
solution
consisting
essentially
alkali
metal
halide
solvent
cell sizes
microcellular carbon
carbon foam
consisting essentially
alkali metal
metal halide
substantially uniform
cell size
solution consisting
uniform distribution
phase inversion
turbostatic spacing
x-ray turbostatic
inversion solvent
morphology providing
strut morphology
interconnected strut
foam characterized
/423/264/521/