Microporous graphite foam and process for producing same

Details Microporous graphite foam and process for producing same Microporous graphite foam and process for producing same

2011-05-10

2011-05-10

Silverman, Stanley S. (Department: 1736)

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

C264S044000, C264S029300

Reexamination Certificate

active

07939046

ABSTRACT:
A process for producing a microporous graphite foam including a matrix of graphite fibers joined by a graphitized graphite-forming precursor. In one embodiment, the process includes providing a plurality of graphite fibers; mixing the graphite fibers with a graphite-forming precursor; compressing the mixture; forming a precursor matrix comprising the graphite fiber and the graphite-forming precursor; first heating the matrix to a temperature at which the graphite-forming precursor is carbonized, forming a carbonized matrix; and second heating the carbonized matrix to a temperature at which the carbonized graphite-forming precursor is graphitized, forming the microporous graphite foam. The graphite foam has one or more of pore sizes less than about ten microns, low bulk density, high physical strength and good machinability, while also having the desirable characteristics of graphite, including high thermal conductivity, electrical conductivity and solderability.

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