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Porosimetry print that page

The technique involves the intrusion of a non-wetting liquid (often mercury ) at high pressure into a material through the use of a porosimeter . The pore size can be determined based on the external pressure needed to force the liquid into a pore against the opposing force of the liquid

wikipedia.org | 2010/9/26 5:12:26

Hillar Rootare print that page

published more than 100 papers and cited in hundreds more, but particularly so in the field of porosimetry , where he considered one of the foremost experts, and is one of the most widely published chemists in the United States. [ citation needed ] Examples of his published papers include

wikipedia.org | 2010/9/25 16:56:35

Capillary condensation print that page

Capillary_condensation

Capillary condensation is an important factor in both naturally occurring and synthetic porous structures. In these structures, scientists use the concept of capillary condensation to determine pore size distribution and surface area though adsorption isotherms. [ 3 ] [ 4 ] [ 5 ] [ 6 ] Synthetic

Kelvin equation print that page

equation is used for determination of pore size distribution of a porous medium using adsorption porosimetry . The equation is named in honour of William Thomson , commonly known as "Lord Kelvin". The Kelvin equation may be written in the form where p is the actual vapour pressure

wikipedia.org | 2011/5/26 21:11:22

Gas in scattering media absorption spectroscopy print that page

Free gases exhibit very sharp spectral features, and different gas species have their own unique spectral fingerprints. At atmospheric pressure, absorption linewidths are typically on the order of 0.1 cm -1 (i.e. ~3 GHz in optical frequency or 0.006 nm in wavelength), while solid media have

wikipedia.org | 2010/9/25 21:38:34

Estonian-American print that page

Lauri_Vaska

Hillar Rootare , a materials scientist, is best known for his work in the development of mercury porosimetry , high pressure liquid chromatography , and the formulation of the Rootare-Prenzlow Equation . In journalism, Edmund S. Valtman , a successful editorial cartoonist, won the Pulitzer

Estonian American print that page

Lauri_Vaska

Hillar Rootare , a materials scientist, is best known for his work in the development of mercury porosimetry , high pressure liquid chromatography , and the formulation of the Rootare-Prenzlow Equation . In journalism, Edmund S. Valtman , a successful editorial cartoonist, won the Pulitzer

Rootare-Prenzlow Equation print that page

American scientist Carl Prenzlow, first published in their 1967 paper, "Surface Areas from Mercury Porosimetry Measurements," Rootare, H.M. , and Prenzlow, C.F., 71 J. Phys. Chem. p. 2733 (1967). The equation first formulated a means to calculate cumulative surface areas of porous solids

wikipedia.org | 2010/9/25 8:01:47

Thermoporometry and cryoporometry print that page

To make a thermoporometry / cryoporometry measurement, a liquid is imbibed into the porous sample, the sample cooled until all the liquid is frozen, and then warmed until all the liquid is again melted. Measurements are made of the phase changes or of the quantity of the liquid that is crystalline

wikipedia.org | 2011/9/25 16:33:30

Thermoporometry and Cryoporometry print that page

To make a thermoporometry / cryoporometry measurement, a liquid is imbibed into the porous sample, the sample cooled until all the liquid is frozen, and then warmed until all the liquid is again melted. Measurements are made of the phase changes or of the quantity of the liquid that is crystalline

wikipedia.org | 2011/9/6 9:35:43