Activity of Oxygen in Liquid Cu–Tl Alloys

• Otsuka Shinya

  Department of Metallurgical Engineering, Faculty of Engineering, Osaka University

• Hanaoka Hirotaka

  Graduate School, Osaka University

• Kozuka Zensaku

  Department of Metallurgical Engineering, Faculty of Engineering, Osaka University

Bibliographic Information

Other Title

• Activity of Oxygen in Liquid Cu–Tl Alloys

Abstract

In order to determine the activity coefficients of oxygen, γ_O, in liquid Cu–Tl alloys at 1373 K as a function of alloy composition, the modified coulometric titrations described previously have been performed by using an electrochemical cell: O in liquid Cu–Tl alloys/ZrO₂(+CaO)/Air, Pt. The activity coefficients of oxygen in liquid copper and thallium are considerably lowered by a little addition of thallium and copper respectively so that a deep upwardly concave curve of lnγ_O vs alloy composition is suggested over the entire composition range of Cu–Tl alloys. The interaction parameter of thallium on oxygen is evaluated to be −7.5 at 1373 K . The present results have been compared with the calculated values based on solution models.

Journal

• Transactions of the Japan Institute of Metals

  Transactions of the Japan Institute of Metals 23 (2), 70-76, 1982

  The Japan Institute of Metals

Keywords

• General Engineering

Details

• CRID: 1390282680094617472
• NII Article ID: 130003485966
• DOI: 10.2320/matertrans1960.23.70
• COI: 1:CAS:528:DyaL38Xit1Wrtrs%3D
• ISSN: 24324701
• ISSN: 00214434
• Web Site: https://www.jstage.jst.go.jp/article/matertrans1960/23/2/23_2_70/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed