Method of making an essentially void-free, cast silicon and aluminum product
US5094288A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 1990 |
| Grant date | Mar 10, 1992 |
| Priority date | — |
| Expiry date | Nov 21, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C14/3414
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of making an essentially void-free, cast silicon and aluminum product wherein silicon and aluminum components in solid form are placed in a receptacle, heated to completely melt the components and thoroughly and uniformly disperse the aluminum component within the silicon component, and cooling the mixture in a non-uniform manner whereby solidification of the mixture gradually progresses from one extremity of the mixture to another extremity thereof. The aluminum component does not exceed about 6% by weight of the total weight of the components in the receptacle. During solidification of the mixture, gases are vented therefrom through that portion of the mixture which is in a molten state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.