Thermodynamic study on the Ag-Pb-O system at 1273 K

Shigeru Ueda; Tomomasa Kumagai; Katsunori Yamaguchi

doi:10.2320/matertrans.46.1861

Thermodynamic study on the Ag-Pb-O system at 1273 K

Shigeru Ueda, Tomomasa Kumagai, Katsunori Yamaguchi

School of Creative Science and Engineering

Research output: Contribution to journal › Article

4 Citations (Scopus)

Abstract

The phase relations for the Ag-Pb-O system saturated with alumina and the activity coefficient of AgO _0.5 in the PbO melt were investigated at 1273K. A chemical equilibrium technique and an EMF method were applied to the measurement. In this system, there is a miscibility gap between a molten Ag-Pb alloy phase and a Pb-Ag-O oxide phase. The solubility of Ag in the oxide phase and that of Pb in the metal phase were studied as a relation of the partial oxygen pressure. These results suggest that component of silver oxide in liquid PbO phase should be represented as AgO _0.5. The activity coefficient of AgO _0.5 in the PbO based oxide melt at infinite dilution relative to pure solid AgO _0.5 is 0.602 at 1273 K.

Original language	English
Pages (from-to)	1861-1864
Number of pages	4
Journal	Materials Transactions
Volume	46
Issue number	8
DOIs	https://doi.org/10.2320/matertrans.46.1861
Publication status	Published - 2005 Aug 1

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Keywords

Cupellation
Silver oxide
Silver-lead-oxygen system
Thermodynamics

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Cite this

Ueda, S., Kumagai, T., & Yamaguchi, K. (2005). Thermodynamic study on the Ag-Pb-O system at 1273 K. Materials Transactions, 46(8), 1861-1864. https://doi.org/10.2320/matertrans.46.1861

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10.2320/matertrans.46.1861