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Title: Purification of tantalum by plasma arc melting

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.

Inventors:
 [1];  [2]
  1. (Santa Fe, NM)
  2. (Los Alamos, NM)
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM
OSTI Identifier:
872603
Patent Number(s):
5972065
Assignee:
Regents of University of California (Los Alamos, NM) LANL
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
purification; tantalum; plasma; melting; level; oxygen; carbon; impurities; reduced; flowing; gas; generated; mixture; helium; hydrogen; gases; found; superior; purpose; gas generated; gas mixture; plasma gas; /75/423/

Citation Formats

Dunn, Paul S., and Korzekwa, Deniece R. Purification of tantalum by plasma arc melting. United States: N. p., 1999. Web.
Dunn, Paul S., & Korzekwa, Deniece R. Purification of tantalum by plasma arc melting. United States.
Dunn, Paul S., and Korzekwa, Deniece R. Fri . "Purification of tantalum by plasma arc melting". United States. https://www.osti.gov/servlets/purl/872603.
@article{osti_872603,
title = {Purification of tantalum by plasma arc melting},
author = {Dunn, Paul S. and Korzekwa, Deniece R.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

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