| Affiliation: | (1) Dept. Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, 565-0871 Suita, Osaka, Japan;(2) Dept. Inorganic Chemistry–Materials Chemistry, University of Vienna, A-1090 Vienna, Austria;(3) Faculty of Engineering, Dept. of Materials Sci. & Engineering, Kansai University, 3-3-35 Yamate-cho, 564-8680 Suita, Osaka, Japan |
| Abstract: | Summary. Gallium activity in the B2 (CsCl-type) phase of ternary Co–Ga–X (X = Ge, Ni, and Fe) alloys was measured by the EMF method with a stabilized zirconia solid electrolyte. The temperature range was 1050–1250 K and the concentrations of the added elements were 2–6 at-% Ge and Ni, and 1–3 at-% Fe. The reference electrodes were Fe,FexO or Ga,Ga2O3. The effect on the activity of gallium in the B2 phase with the addition of other elements was found to be the largest with Ge and the smallest in the case of Ni. |
