The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 22, 1978
Filed:
Dec. 23, 1976
Alec Mitchell, West Vancouver, CA;
James R Goldsmith, Pittsburgh, PA (US);
J Malcolm Gray, Stamford, CT (US);
Molycorp, Inc., White Plains, NY (US);
Abstract
A method for making an alloy of aluminum and silicon with rare earth metals and metals of Groups 4b, 5b and 6b of the Periodic Table in which the flux system CaF.sub.2 -CaO-Al.sub.2 O.sub.3 is used as a solvent to provide a reactive medium for the reactions through which alloys are formed, the method comprising reducing the oxides of the alloying metals with aluminum in the presence of silicon in the flux maintained liquid at a temperature between about 1250.degree. C - 1600.degree. C while maintaining the flux basic to suppress the activity of Al.sub.2 O.sub.3 and forming the alloys in the flux from the reduced metals.