Activity coefficient of AgO 0.5 in the PbO-SiO 2 melt at 1273 K

Shigeru Ueda, Tomomasa Kumagai, Katsunori Yamaguchi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Activity coefficient of AgO 0.5 in PbO-SiO 2 melt equilibrated with Ag-Pb alloy in an alumina or a magnesia crucible was investigated at 1273 K. A chemical equilibrium technique was applied to the measurement. The oxygen partial pressure was also measured by an EMF method. The activity coefficient of AgO 0.5 in the PbO-SiO 2 melt was derived. The addition of SiO 2 in the PbO melt decreases dissolution of Ag into the oxide phases. However, the activity coefficient of AgO 0.5 increases slightly with an increase in the concentration of SiO 2 in the PbO melt.

Original languageEnglish
Pages (from-to)1458-1462
Number of pages5
JournalMaterials Transactions
Volume48
Issue number6
DOIs
Publication statusPublished - 2007 Jun
Externally publishedYes

Fingerprint

Activity coefficients
coefficients
Magnesium Oxide
Aluminum Oxide
Crucibles
Magnesia
crucibles
Partial pressure
Oxides
partial pressure
chemical equilibrium
dissolving
Dissolution
Alumina
aluminum oxides
Oxygen
oxides
Electric potential
oxygen

Keywords

  • Activity coefficinet of AgO
  • PbO-SiO melt
  • Silver-lead alloy

ASJC Scopus subject areas

  • Materials Science(all)
  • Metals and Alloys

Cite this

Activity coefficient of AgO 0.5 in the PbO-SiO 2 melt at 1273 K. / Ueda, Shigeru; Kumagai, Tomomasa; Yamaguchi, Katsunori.

In: Materials Transactions, Vol. 48, No. 6, 06.2007, p. 1458-1462.

Research output: Contribution to journalArticle

Ueda, Shigeru ; Kumagai, Tomomasa ; Yamaguchi, Katsunori. / Activity coefficient of AgO 0.5 in the PbO-SiO 2 melt at 1273 K. In: Materials Transactions. 2007 ; Vol. 48, No. 6. pp. 1458-1462.
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