FLUID TRANSPORT IN PARTIALLY FILLED POROUS SOL-GEL SILICA GLASS

被引：35

作者：

DORAZIO, F ^{[1
]}

BHATTACHARJA, S ^{[1
]}

HALPERIN, WP ^{[1
]}

GERHARDT, R ^{[1
]}

机构：

[1] RUTGERS STATE UNIV,CTR CERAM RES,PISCATAWAY,NJ 08855

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.42.6503

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Measurements of low-frequency ac electrical conductivity of a porous glass filled with different amounts of a saline solution are compared with the self-diffusion coefficient of water measured in the same sample, reported previously [F. DOrazio et al., Phys. Rev. Lett. 63, 43 (1989)]. The two transport parameters are consistently related through the Einstein relation under saturation conditions. A more complex picture is revealed for the unsaturated sample, since the presence of a vapor phase enhances the self-diffusion coefficient. Conductivity experiments allow an independent assessment of the contribution to self-diffusion from the liquid phase. However, a comparison between the two experiments indicates that the role of the vapor phase is not well understood. © 1990 The American Physical Society.

引用

页码：6503 / 6508

页数：6

共 22 条

[1] The electrical resistivity log as an aid in determining some reservoir characteristics [J].