TY - JOUR
T1 - Activity coefficient of AgO 0.5 in the PbO-SiO 2 melt at 1273 K
AU - Ueda, Shigeru
AU - Kumagai, Tomomasa
AU - Yamaguchi, Katsunori
PY - 2007/6
Y1 - 2007/6
N2 - 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.
AB - 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.
KW - Activity coefficinet of AgO
KW - PbO-SiO melt
KW - Silver-lead alloy
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U2 - 10.2320/matertrans.MRA2006251
DO - 10.2320/matertrans.MRA2006251
M3 - Article
AN - SCOPUS:34547459595
SN - 1345-9678
VL - 48
SP - 1458
EP - 1462
JO - Materials Transactions
JF - Materials Transactions
IS - 6
ER -