Chemistry of inorganic compounds – Carbon or compound thereof – Elemental carbon
Patent
1992-10-13
1993-05-04
Foelak, Morton
Chemistry of inorganic compounds
Carbon or compound thereof
Elemental carbon
264 291, 264 297, 4234496, 521142, 521149, 521918, C01B 3100, C01B 3102, C08J 936
Patent
active
052080030
ABSTRACT:
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.
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Brown John D.
Simandl Ronald F.
Adams Harold W.
Foelak Morton
Larcher Earl L.
Martin Marietta Energy Systems Inc.
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