Location

Snowmass Village, CO

Start Date

1-1-1995 12:00 AM

Description

Generally, the interfacial stiffness is defined as the ratio of the normal or transverse stress to the corresponding interface opening displacement. The interfacial stiffness of a solid/solid interface is characteristic to the nature and degree of interface imperfections therefore it is a sensitive quantitative measure of bond quality. A similar definition of the normal interfacial stiffness can be introduced for fluid/fluid-saturated porous solid boundaries, too. In most cases, the surface pores are inherently “open” and the surface impedance is negligible when the sample is fully submerged in fluid. On the other hand, due to surface tension, practically closed-pore boundary conditions can prevail at an interface between a non-wetting fluid (e.g., air) and a porous solid saturated with a wetting fluid (e.g., water).

Volume

14B

Chapter

Chapter 5: Engineered Materials

Section

Interfaces

Pages

1425-1432

DOI

10.1007/978-1-4615-1987-4_183

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Surface Stiffness Measurements on Water-Saturated Porous Solids

Snowmass Village, CO

Generally, the interfacial stiffness is defined as the ratio of the normal or transverse stress to the corresponding interface opening displacement. The interfacial stiffness of a solid/solid interface is characteristic to the nature and degree of interface imperfections therefore it is a sensitive quantitative measure of bond quality. A similar definition of the normal interfacial stiffness can be introduced for fluid/fluid-saturated porous solid boundaries, too. In most cases, the surface pores are inherently “open” and the surface impedance is negligible when the sample is fully submerged in fluid. On the other hand, due to surface tension, practically closed-pore boundary conditions can prevail at an interface between a non-wetting fluid (e.g., air) and a porous solid saturated with a wetting fluid (e.g., water).