A Modified Pore Filling Isotherm with Application in Determination of Pore Size Distributions

Langmuir ◽  
1994 ◽  
Vol 10 (9) ◽  
pp. 3230-3243 ◽  
Author(s):  
S. K. Bhatia ◽  
H. K. Shethna
Keyword(s):  
Pore Size ◽  
Size Distributions ◽  
Pore Filling ◽  
Pore Size Distributions

scholarly journals Determination of pore size distributions using the Dual Site-Bond Model: experimental evidence

2002 ◽  
Vol 206 (1-3) ◽  
pp. 393-400 ◽  
Author(s):  
R.H López ◽  
A.M Vidales ◽  
G Zgrablich ◽  
F Rojas ◽  
I Kornhauser ◽  
...  
Keyword(s):  
Experimental Evidence ◽  
Pore Size ◽  
Size Distributions ◽  
Bond Model ◽  
Pore Size Distributions ◽  
Dual Site

Determination of Pore Size Distributions in Nano-Porous Thin Films from Small Angle Scattering

2003 ◽  
Vol 766 ◽  
Author(s):  
Barry J. Bauer ◽  
Ronald C. Hedden ◽  
Hae-Jeong Lee ◽  
Christopher L. Soles ◽  
Da-Wei Liu
Keyword(s):  
Pore Size ◽  
Small Angle ◽  
Length Distribution ◽  
Dielectric Constants ◽  
Scattering Data ◽  
Size Distributions ◽  
Average Pore ◽  
Pore Size Distributions ◽  
Phase Size

AbstractSmall angle neutron and x-ray scattering (SANS, SAXS) are powerful tools in determination of the pore size and content of nano-porous materials with low dielectric constants (low-k) that are being developed as interlevel dielectrics. Several models have been previously applied to fit the scattering data in order to extract information on the average pore and/or matrix size. A new method has been developed to provide information on the size distributions of the pore and matrix phases based on the “chord length distribution” introduced by Tchoubar and Mering. Examples are given of scattering from samples that have size distributions that are narrower and broader than the random distribution typical of scattering described by Debye, Anderson, and Brumberger. An example of fitting SANS data to a phase size distribution is given.

Influence of compaction conditions on pore-size distribution and saturated hydraulic conductivity of a glacial till

2000 ◽  
Vol 37 (6) ◽  
pp. 1184-1194 ◽  
Author(s):  
Y Watabe ◽  
S Leroueil ◽  
J -P Le Bihan
Keyword(s):  
Hydraulic Conductivity ◽  
Pore Size Distribution ◽  
Pore Size ◽  
Void Ratio ◽  
Glacial Till ◽  
Degree Of Saturation ◽  
Size Distributions ◽  
Pore Size Distributions ◽  
Compaction Degree

The paper examines the hydraulic conductivity of a nonplastic till from northern Quebec. It is shown that the hydraulic conductivity is strongly influenced by the compaction degree of saturation, and the variation of hydraulic conductivity with void ratio is influenced by compaction conditions. Determination of pore-size distributions and microphotographs provide evidence that changes in hydraulic conductivity are related to the fabric of the compacted specimens and macroporosity developing when the soil is compacted at degrees of saturation less than that at the optimum.Key words: till, hydraulic conductivity, microfabric.

scholarly journals Modeling the soil-water retention curves for highly deforming soils

2021 ◽  
Vol 337 ◽  
pp. 02003
Author(s):  
Eduardo Rojas ◽  
Jaime Horta ◽  
María de la Luz Pérez-Rea
Keyword(s):  
Pore Size ◽  
Soil Water ◽  
Water Retention ◽  
Size Distributions ◽  
Soil Deformation ◽  
Soil Water Retention ◽  
Pore Size Distributions ◽  
Wetting Curve ◽  
Drying Curve

A porous-solid model based on the grain and pore size distributions of the soil is coupled with a mechanical model to simulate the soil-water retention curves while the material is deforming. During the determination of the main drying curve, the soil is subjected to high suctions which induce important volumetric deformations. These volumetric deformations modify the pore size distribution of the sample affecting both the drying and the wetting retention curves. Although, most deformation occurs at drying, the drying curve is only slightly affected by soil deformation. In contrast, the wetting curve shows important shifting when volume change is considered.

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