Original scientific paper

The mechanism of liquid copper deoxidation during argon blowing

G. Siwiec ; Faculty of Materials Sciences and Metallurgy, Silesian University of Technology, Katowice, Poland
J. Willner ; Faculty of Materials Sciences and Metallurgy, Silesian University of Technology, Katowice, Poland

Abstract

Using the method of argon (with specified oxygen content) blowing, the possibility of copper deoxidation has been considered on the basis of specific thermodynamic data. Despite the oxygen exceeding its equilibrium content in argon, a significant copper deoxidation during blowing has been experimentally observed. The explanation of this phenomenon can be the reaction of oxygen with the crucible material. In the present study, graphite and Al₂O₃ crucibles were used. The stirring effect of gaseous bubbles promotes passing the substrates to and removing the products from the reaction zone.

Keywords

metallurgy; liquid copper; deoxidation; argon

Hrčak ID:

31990

URI

https://hrcak.srce.hr/31990

Publication date:

1.4.2009.

Article data in other languages: croatian

Visits: 2.402 *