It has been shown in a companion paper that the permeability of a porous body can be found from a three-point bending experiment. When the sample is bent, a pressure gradient is created in the liquid within the pores; as the liquid flows in response to the gradient, the force that must be applied to the rod to sustain a fixed deflection decreases with time. By fitting the force decay curve to the predicted shape, the permeability is obtained, along with the elastic modulus. In this paper, that theory is tested using porous Vycor glass saturated with various solvents, including several normal alcohols, water and glycerol.
Origin
Princeton University, Usa
Journal Title
J Am Ceram Soc 83 9 2000 2240-2245
Sector
Special Glass
Class
S 2207