Carbon fibrous structure

Details Carbon fibrous structure Carbon fibrous structure

2011-08-30

2011-08-30

McCracken, Daniel C. (Department: 1736)

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

C423S447100, C977S752000, C977S843000

Reexamination Certificate

active

08007755

ABSTRACT:
A method for forming a carbon fibrous structure having a plurality of granular parts, to which a plurality of carbon fibers are bound, includes heating a mixture of a carbon source and a catalyst at a temperature between 800 ° C. and 1300 ° C. to produce aggregates of a first intermediate, heating the aggregates of the first intermediate to remove hydrocarbons, at a temperature between 800 ° C. and 1200 ° C. to produce aggregates of a first product, heating the aggregates of the first product at a temperature between 2400 ° C. and 3000 ° C. to produce aggregates of a final product; and pulverizing the aggregates of the final product such that area-based circle-equivalent mean diameter of each aggregate of the carbon fibrous structure of the product is 50-100 μm, bulk density of the carbon fibrous structure is 0.0001-0.02 g/cm3, and powder resistance under pressed density of 0.8g/cm3is not more than 0.02 Ω·cm.

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