Porosity

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porosity

[pə′räs·əd·ē]
(physics)
Property of a solid which contains many minute channels or open spaces.
The fraction as a percent of the total volume occupied by these channels or spaces; for example, in petroleum engineering the ratio (expressed in percent) of the void space in a rock to the bulk volume of that rock.

Porosity

 

in geology, the aggregate of pores, joints, channels, and other cavities in a rock massif, regardless of their shape and dimensions. The porosity and jointing of rock and other such concepts are distinguished.

porosity

A ratio, usually expressed as a percentage, of the volume of voids in a material to the total volume of the material, including the voids. The voids permit gases or liquids to pass through the material.
References in periodicals archive ?
A Applying waterborne inks on difficult-to-coat surfaces such as plastics, films and nonporous substrates presents significant challenges to ink formulators.
When tackling the challenges of printing on nonporous surfaces, ink adhesion is the name of the game.
Porous resin materials have lower dielectric constants than nonporous resins.
Washington, May 12 (ANI): A new coating process may be able to reveal hard-to-retrieve fingerprints on nonporous surfaces without altering the chemistry of the print, say researchers.
99) of nonporous polymers that resist odor-causing bacteria.
Applications include SMT parts, metal parts, plastic parts or any item with a smooth, nonporous surface that the rubber vacuum tweezer tip can seal against.
SpectraSan 24 is a disinfectant product that can be used to prevent the spread of viruses and infections on hard, nonporous surfaces such as medical equipment, tables, handles, and doorknobs.
Simply shine the UV light over any smooth, nonporous surface to be disinfected at 1/2" or less for six to eight seconds.
LG HIMACS @ is the solid surface of the future that's totally nonporous for optimum hygiene.
Eos says its 3 cm-thick stabs offer the natural took of stone p/us the easy-to-clean, stain-resistance of nonporous solid surfaces.
Trowelable to a smooth, nonporous finish, it attains a compression strength of 9000 psi--more than three times the typical strength of concrete.
The diffusivity of water and small solutes in food systems depends primarily on the product's porosity and pore geometry, while the effect of temperature is more important in nonporous food products.