Method for making a light metal-rare earth metal alloy
US5037608A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1988 |
| Grant date | Aug 6, 1991 |
| Priority date | — |
| Expiry date | Dec 29, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S75/959
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for making a light metal-rare earth metal alloy comprises adding a pellet to a bath of molten light metal, said pellet consisting essentially of a mixture of light metal powder and rare earth metal-containing compound. Such pellets, which are made under pressures of about 9 ksi or more, are preferably added to molten baths of aluminum, magnesium or combinations thereof. The light metal powders and rare earth metal-containing compounds that are mixed together to form said pellets are preferably substantially similar in terms of median particle size. This method is suitable for aluminothermically reducing scandium oxide to make aluminum-scandium alloy therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.