Mesophase pitch-based carbon fibers with carbon nanotube...

Details Mesophase pitch-based carbon fibers with carbon nanotube... Mesophase pitch-based carbon fibers with carbon nanotube...

2006-12-26

2006-12-26

Kopec, Mark (Department: 1751)

Compositions

Electrically conductive or emissive compositions

Elemental carbon containing

C252S510000, C423S447100

Reexamination Certificate

active

07153452

ABSTRACT:
A modified, mesophase pitch-based carbon fiber is disclosed which includes carbon nanotube reinforcements in an amount ranging from about 0.01 percent to about 1.0 percent by weight. Although the reinforcements actually decrease the excellent tensile modulus of the unmodified fiber, they provide a random microstructure, which can decrease brittle failure of the fiber caused by propagation of a flaw.

REFERENCES:
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patent: 6491891 (2002-12-01), Klett et al.
Cho et al, “Structure of carbon fiber obtained from nanotube-reinforced mesophase pitch”, Carbon (May 2003), 41(7), 1419-1424.
Andrews et al., “Continuous Production of aligned carbon nanotubes: a step closer to commercial realization,” Chemical Physics Letters, 303, 467-474, 1999.
Adnrews et al., “Nanotube composite carbon fibers,” Applied Physics Letters, 75(9), 1329-31, 1999.
Mochida, et al., “Microstructure of Mesophase Pitch-Based Carbon Fiber and Its Control,” Carbon, 34 (8), 941-956, 1996.
Jones, Fain, and Edie, “Structural Development in Mesophase Pitch Based Carbon Fibers Produced from Naphthalene,” Carbon, 35 (11), 1553-43, 1997.
Bourrat, Roche and Lavin, “Structure of Mesophase Pitch Fibers,” Carbon, 28 (2/3), 435-446, 1990.
Ogale, Lin, Anderson and Kearns, “Orientation and Dimensional Changes in Mesophase Picth-Based Carbon Fibers,” Carbon, 40 (8), 1309-1319, 2002.

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