Microcellular carbon foam and method

Patent · Mon Dec 06 23:00:00 EST 1993

OSTI ID:5304136

Simandl, R F; Brown, J D

A microcellular carbon foam is 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.

• DOE Contract Number: AC05-84OR21400
• Assignee: Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States)
• Patent Number(s): US 5268395; A
• OSTI ID: 5304136
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360600* -- Other Materials
ALKALI METAL COMPOUNDS
BULK DENSITY
CARBON
COLLOIDS
DENSITY
DISPERSIONS
ELEMENTS
FOAMS
HALIDES
HALOGEN COMPOUNDS
MICROSTRUCTURE
MORPHOLOGY
NITRILES
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
PHYSICAL PROPERTIES
POLYMERS
PORE STRUCTURE
SYNTHESIS