MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Effect of Ar/Ar-H2 Plasma Arc Melting on Cu Purification
Jae-Won LimMin-Seuk KimN. R. MunirathnamMinh-Tung LeMasahito UchikoshiKouji MimuraMinoru IsshikiHyuk-Chon KwonGood-Sun Choi
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JOURNAL FREE ACCESS

2008 Volume 49 Issue 8 Pages 1826-1829

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Abstract

Removal of impurities from Cu metal by Ar and Ar-20%H2 plasma arc melting (PAM) has been carried out. Several impurities such as Li, Na, Mg, P, S, Cl, K, Ca, Zn, Pd, Pb and Bi in Cu were efficiently removed when only Ar plasma gas was used. Moreover, removal degrees for the above mentioned impurities were significantly increased after Ar-20%H2-PAM, especially for K, Zn and Pd. It was found that Ar-H2 PAM showed an excellent effect to eliminate impurities with higher vapor pressures than that of Cu metal.

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© 2008 The Japan Institute of Metals and Materials
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