JAMES EDWARD GOLDSMITH
Medical Practice in Pittsburgh, PA
License number
Pennsylvania MT203252
Category
Medicine
Type
Graduate Medical Trainee
Address
Address
Pittsburgh, PA 15217
Professional information
Preparation Of Rare Earth And Other Metal Alloys Containing Aluminum And Silicon
US Patent:
4108645, Aug 22, 1978
Filed:
Dec 23, 1976
Appl. No.:
5/753867
Inventors:
Alec Mitchell - West Vancouver, CA
James R. Goldsmith - Pittsburgh PA
J. Malcolm Gray - Stamford CT
James R. Goldsmith - Pittsburgh PA
J. Malcolm Gray - Stamford CT
Assignee:
Molycorp, Inc. - White Plains NY
International Classification:
C22C 2104
US Classification:
75135
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.