Directional solidification of metal matrix composites
US5020583A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1988 |
| Grant date | Jun 4, 1991 |
| Priority date | — |
| Expiry date | Nov 10, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C1/1063
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A metal matrix composite is formed by contacting a molten matrix alloy with a permeable mass of filler material or preform in the presence of an infiltrating atmosphere. Under these conditions, the molten matrix alloy will spontaneously infiltrate the permeable mass of filler material or preform under normal atmospheric pressures. Once a desired amount of spontaneous infiltration has been achieved, or during the spontaneous infiltration step, the matrix metal which has infiltrated the permeable mass of filler material or preform is directionally solidified. This technique allows the production of spontaneously infiltrated metal matrix composites having improved microstructures and properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.