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Title: Purification of tantalum by plasma arc melting

Patent ·
OSTI ID:20013794

Purification of tantalum by plasma arc melting is disclosed. 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.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-7405-ENG-36
Assignee:
LANL; EDB-00:006196
Application Number:
Int. Cl. C21B 11/10; C22B 34/10; C01G 31/00; US 5,972,065/A/; 8-891,662; TRN: US0000926
OSTI ID:
20013794
Resource Relation:
Other Information: PBD: 26 Oct 1999
Country of Publication:
United States
Language:
English

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