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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