Inventors:
Paul S. Dunn - Santa Fe NM
Deniece R. Korzekwa - Los Alamos NM
Assignee:
The Regents of the University of California - Los Alamos NM
International Classification:
C21B 1110, C22B 3410, C01G 3100
Abstract:
Purification of tantalum by plasma arc melting. The level of oxygen and carbon impurities in tantalum was reduced by plasma arc melting the tantalum using a flowing plasma gas generated from a gas mixture of helium and hydrogen. The flowing plasma gases of the present invention were found to be superior to other known flowing plasma gases used for this purpose.