Nanocrystalline ceramic materials reinforced with single-wall carbon nanotubes
US6858173B2 · kind B2 · utility
10Cited by
7References
9Claims
0Family size
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Key dates
| Filing date | Jan 30, 2003 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Mar 24, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/842
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Composites of ceramic materials, notably alumina or metal oxides in general, with single-wall carbon nanotubes are consolidated by electric field-assisted sintering to achieve a fully dense material that has an unusually high fracture toughness compared to the ceramic alone, and also when compared to composites that contain multi-wall rather than single-wall carbon nanotubes, and when compared to composites that are sintered by methods that do not include exposure to an electric field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.