Method of forming metal matrix composite bodies having complex shapes by a self-generated vacuum process, and products produced therefrom
US5163498A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1989 |
| Grant date | Nov 17, 1992 |
| Priority date | — |
| Expiry date | Nov 7, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/00931
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to a novel process for forming net or near net-shape metal matrix composite bodies. Particularly, a molten matrix metal is in contact with a filler material or a preform in the presence of a reactive atmosphere, at least at some point during the process, which permits molten matrix metal to react, at least partially or substantially completely, with the reactive atmosphere, thereby causing molten matrix metal to infiltrate the filler material or preform due to the creation of a self-generated vacuum. Forming a glassy seal on the reaction system, the self-generated vacuum infiltration occurs without the application of any external pressure or vacuum. The molten matrix metal infiltrates the filler material up to at least a portion of a provided barrier means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.