Experimental study on gallium activity in the liquid Ga-Bi-Sn alloys using the EMF method with zirconia solid electrolyte
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Iwao Katayama
Abstract
The EMF of galvanic cells with zirconia solid electrolytes was measured to determine the activity of gallium in liquid Ga-Bi-Sn alloys in the temperature range of 1000–1250 K along three pseudo-binary lines of (Biy, Sn1−y)-Ga where y = 0.25, 0.50 and 0.75. A mixture of Ga and Ga203 was used as a reference electrode. The activity curves of Ga show positive deviations from ideality in the whole composition range. The excess free energies of mixing for Ga-Bi-Sn alloys have been calculated using the general solution model in the same temperature range and along same pseudo-binary lines. The gallium activities obtained by the EMF method and calculated using the general solution model at 1100 K were compared with literature data.
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© 2008, Carl Hanser Verlag, München
Artikel in diesem Heft
- Contents
- Contents
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- DGM News
- DGM News
Artikel in diesem Heft
- Contents
- Contents
- Editorial
- Editorial December 2008
- Basic
- Thermodynamic description of the C-Fe-Mn system with key experiments and its practical applications
- A study of phase equilibria in the Al-rich part of the Al-Mn alloy system
- Transient dopant segregation and precipitation in yttrium-doped alumina
- Experimental study on gallium activity in the liquid Ga-Bi-Sn alloys using the EMF method with zirconia solid electrolyte
- Modeling of the hot deformation behavior of boron microalloyed steels under uniaxial hot-compression conditions
- A new kinetic treatment of the oxidation of β-SiAlON powder
- Quantification of ∊-martensite after thermocycling in Fe-(17∼25)Mn alloys
- The effect of pre-structure process on magnetorheological elastomer performance
- Applied
- Corrosion protective double layer hard coatings
- Interpretation of inorganic melts' surface properties on the basis of chemical status and structural relations
- Basic
- Achieving ultra-fine grains in AZ61 Mg alloy by friction stir processing
- The combined effect of titanic carbide and aluminum phosphide on the refinement of primary silicon in Al-50Si alloy
- Applied
- The role of solidification conditions on the microstructural features of AA6111 aluminum strips cast on a horizontal single belt caster
- Far infrared spectroscopy of Pb0.85Sn0.15Te alloy doped with Ni
- DGM News
- DGM News