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Title: Microcellular carbon foam and method

A microcellular carbon foam is described which 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.
Inventors:
;
Issue Date:
OSTI Identifier:
5045411
Assignee:
Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States) PTO; EDB-94-076102
Patent Number(s):
US 5300272; A
Application Number:
PPN: US 8-120705
Contract Number:
AC05-84OR21400
Resource Relation:
Patent File Date: 13 Sep 1993
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CARBONACEOUS MATERIALS; FABRICATION; PHYSICAL PROPERTIES; FOAMS; PORE STRUCTURE; COLLOIDS; DISPERSIONS; MATERIALS; MICROSTRUCTURE; 360601* - Other Materials- Preparation & Manufacture; 360606 - Other Materials- Physical Properties- (1992-)