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 ?
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.
Main feature is a plate made of soft iron coated with inert nonporous Penton that is inside the sample vessel.
Trowelable to a smooth, nonporous finish, it attains a compression strength of 9000 psi--more than three times the typical strength of concrete.
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.
Company provides custom designed non-destructive test systems for nonporous packages or medical devices.
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.
has developed a technique that employs the latest digital jetting technology in decorating dark or light nonporous foods with white text, graphics, and geometric patterns.
With a good mix of fundamental research and applied engineering, these papers address synthesis, mechanisms, microstructures, properties and applications, with papers on nonporous metal oxides, pore size control, mechanical milling, electronic applications, nanopowders, polymer matrix, structures and physico-chemical properties, enzyme-free electrochemical sensors and environmentally friendly materials.
Nonporous and easy to dean, the Goldfrau from Good Vibrations is handmade by a women-owned Australian company from all-natural materials.