Nickel catalyzed carbon infiltration of carbon fiber substrates
US5312679A · kind A · utility
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2References
4Claims
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Key dates
| Filing date | Aug 14, 1992 |
| Grant date | May 17, 1994 |
| Priority date | — |
| Expiry date | Aug 14, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2984
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A catalytic carbon formation technique in a carbon fiber substrate is disclosed. The carbon fiber substrate is first impregnated with a catalyst and is thereafter heated in an atmosphere rich in carbon and hydrogen. The catalyst is typically a Group VIII metal and may be selected from the group consisting of iron, nickel and cobalt. An incipient wetness technique for impregnating the substrate is also disclosed. A salt of the catalyst is provided in solution and void volume of the substrate is determined. The carbon fiber is then impregnated with a volume of the solution which is incrementally less that the determined void volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.