Activities of iron in liquid copper-iron alloys saturated with copper-iron solid solutions

被引：0
|
作者：
Hasegawa, M
Wakimoto, K
Iwase, M [1 ]
机构：
[1] Kyoto Univ, Dept Energy Sci & Technol, Ferrous Met Res Grp, Kyoto 6068501, Japan
[2] NKK Corp, Yokohama, Kanagawa 2300045, Japan
来源：
HIGH TEMPERATURE MATERIALS AND PROCESSES | 2002年 / 21卷 / 05期
关键词：
D O I：
10.1515/HTMP.2002.21.5.243
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In order to elucidate the activities of Fe in {Cu-Fe} liquid alloys saturated with <Cu-Fe> solid solutions, the equilibrium oxygen partial pressures of the following mixtures were determined by employing an electrochemical technique at temperatures between 1473K and 1613K. (i) "pure" FeO + {Cu-Fe} + <Cu-Fe> (ii) <CaO> + <Ca3SiO5> + {CaO-SiO2-FeO} melt + {Cu-Fe} + <Cu-Fe> (iii) <Ca3SiO5> + <Ca2SiO4> + {CaO-SiO2-FeO} melt + [Cu-Fe} + <Cu-Fe> (iv) <Ca2SiO4> + <Ca3Si2O7> + {CaO-SiO2-FeO} melt + {Cu-Fe} + <Cu-Fe> (v) <Ca3Si2O7> + <CaSiO3> + [CaO-SiO2-FeO} melt + {Cu-Fe} + <Cu-Fe> The electrochemical cell used for the measurements involved magnesia-stabilized zirconia as electrolyte and MO + MoO2 mixture as reference electrode. The activities of Fe in liquid (Cu-Fe} alloys saturated with <Cu-Fe> solid solutions Could be expressed by a formula: log a(Fe) = -(0.58 +/- 0.07) + (0.083 +/- 0.011) x 10(4) / (T/K).
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页码：243 / 249
页数：7
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