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Title: Purification of tantalum by plasma arc melting

Abstract

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.

Inventors:
;
Publication Date:
Research Org.:
LANL (Los Alamos National Laboratory (LANL), Los Alamos, NM (United States))
Sponsoring Org.:
USDOE
OSTI Identifier:
20013794
Application Number:
Int. Cl. C21B 11/10; C22B 34/10; C01G 31/00; US 5,972,065/A/; 8-891,662; TRN: US0000926
Assignee:
LANL; EDB-00:006196
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 26 Oct 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; TANTALUM; IMPURITIES; MELTING; PURIFICATION; OXYGEN; CARBON; PLASMA JETS

Citation Formats

Dunn, P.S., and Korzekwa, D.R. Purification of tantalum by plasma arc melting. United States: N. p., 1999. Web.
Dunn, P.S., & Korzekwa, D.R. Purification of tantalum by plasma arc melting. United States.
Dunn, P.S., and Korzekwa, D.R. Tue . "Purification of tantalum by plasma arc melting". United States.
@article{osti_20013794,
title = {Purification of tantalum by plasma arc melting},
author = {Dunn, P.S. and Korzekwa, D.R.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {10}
}