Hydrogen diffusion in silicate glasses
Hydrogen diffusion in silicate glasses
复制标题
氢在硅酸盐玻璃中的扩散
DOI：
10.1016/0022-3093(70)90107-9
复制
发表时间：
1970
影响因子：
3.5
通讯作者：
M. Morain
中科院分区：
文献类型：
--
作者：
J. Barton;M. Morain
The permeation of hydrogen into silver-doped glasses in the range 280–450°C is derived from spectrophotometric determinations of the rate of precipitation of colloidal silver. By measuring this rate as a function of hydrogen partial pressure the effect of the mobility of the silver ions may be allowed for and values obtained for the alkali ion-silver ion interdiffusion coefficient. The method is tested by adding various amounts of silver to the same base glass and comparing the values obtained forPH2andDAg+. When Na+is replaced by Ca++in simple silicate glasses the hydrogen permeation rate is reduced in spite of the decrease in the number of network modifying ions. Substitution of Mg++for Ca++leads to an increase in the permeability while replacement of Ca++by Sr++or Ba++causes a decrease.
