Ceramic materials reinforced with single-wall carbon...

Details Ceramic materials reinforced with single-wall carbon... Ceramic materials reinforced with single-wall carbon...

2005-04-05

2005-04-05

Kopec, Mark (Department: 1751)

Compositions

Electrically conductive or emissive compositions

Elemental carbon containing

C252S518100, C423S44500R, C423S592100, C501S095200, C501S099000, C501S100000, C264S430000, C977S726000

Reexamination Certificate

active

06875374

ABSTRACT:
Composite materials formed of a matrix of fused ceramic grains with single-wall carbon nanotubes dispersed throughout the matrix and a high relative density, notably that achieved by electric field-assisted sintering, demonstrate unusually high electrical conductivity in combination with high-performance mechanical properties including high fracture toughness. This combination of electrical and mechanical properties makes these composites useful as electrical conductors in applications where high-performance materials are needed due to exposure to extreme conditions such as high temperatures and mechanical stresses.

REFERENCES:
patent: 6420293 (2002-07-01), Chang et al.
Flahaut et al, “Carbon Nanotube-metal-oxide nanocomposites: Microstructure, Electrical Conductivity and Mechanical Properties,” Acta. mater. 2000 (48) pp 3803-3812.*
Peigney et al, “Carbon Nanotubes in Novel Ceramic Matrix Nanocomposites,” Ceramics International, 2000, (26) 677-683.

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