Solubility of Ag2O in the B2O3-Al2O3 system

被引：3
|
作者：
Wakasugi, T [1 ]
Ohkawa, A [1 ]
Fukunaga, J [1 ]
Ota, R [1 ]
机构：
[1] Kyoto Inst Technol, Dept Chem & Mat Technol, Fac Engn & Design, Sakyo Ku, Kyoto 606, Japan
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 1999年 / 255卷 / 2-3期
关键词：
D O I：
10.1016/S0022-3093(99)00385-3
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The variation of Ag2O solubility under air atmosphere with the chemical potential of Ag was measured for the B2O3-Al2O3 system by equilibrating with a Ag-Au alloy with various Ag contents at 1373 K. It was found that, in this system, the regular solution model is not valid for estimating the activity coefficient over a wide composition range. The activity coefficient of Ag2O in B2O3 at infinite dilution and first order Gibbs energy interaction coefficients of Ag2O, Al2O3, and Na2O on the Ag2O were determined from Ag2O solubility data without assuming a regular solution. The solubility of Al2O3 in borate melts is also discussed. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：127 / 131
页数：5
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