porosity

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porosity

 [pŏ-ros´ĭ-te]
the condition of being porous; a pore.

po·ros·i·ty

(pō-ros'i-tē),
1. Synonym(s): porosis
2. A perforation.
[G. poros, pore]

porosity

/po·ros·i·ty/ (por-os´it-e) the condition of being porous; a pore.

po·ros·i·ty

(pōr-os'i-tē)
1. Synonym(s): porosis.
2. A perforation.
[G. poros, pore]

po·ros·i·ty

(pōr-os'i-tē)
1. Synonym(s): porosis.
2. A perforation.
[G. poros, pore]

porosity (pōros´itē),

n the pres-ence of pores or voids within a structure.
porosity, back-pressure,
n porosity produced in castings resulting from the inability of gases in the mold to escape through the investment.
porosity, occluded gas,
n porosity produced by improper use of the blowpipe (i.e., heating the metal in the oxidizing portion of the flame).
porosity, shrink-spot,
n an area of porosity in cast metal that is caused by shrinkage of a portion of the metal as it solidifies from the molten state without flow of additional molten metal from surrounding areas.
porosity, solidification,
n porosity that may be produced by improper spruing or improper heating of the metal or the investment.

porosity

the condition of being porous; a pore.
References in periodicals archive ?
Engineering/structural adhesives are used to bond nonporous substrates such as metal, glass, plastics and rubber, yielding assemblies with high performance characteristics, including structural strength, resistance to heat and solvents, etc.
Influenza A viruses can survive 24 to 48 hours on hard, nonporous surfaces such as stainless steel or plastic.
While Glaze requires a longer drying time than most pens, it works well for the patient crafter on nonporous surfaces like iridescent Mylar, ceramics, glass, or even on CDs.
In addition, ST noted that researchers have succeeded in fabricating a "special nonporous layer" consisting of a layer of silicon containing millions of pores each measuring a few nanometers in diameter, which "give the layer a very large effective surface area, thus increasing the efficiency of the catalyst.
According to the company, these adhesives can be used on both porous (foams, cloth, felt, insulation) and nonporous (metal, plastic, wood) materials.
It has a smooth, flat surface and is nonporous, as it is 100 per cent solid.
But nonporous rock layers also trap rising oil, creating an underground oil reservoir.
Developed for use on a wide variety of hunting items, including clothes and equipment, the Scentblocker[R] Carbon Blast[TM] penetrates fabrics and adheres to nonporous materials such as wood, plastic, and metal.
In contrast, living tissues reject nonporous silicon.
Crystal engineering of one-, two-, and three-dimensional coordination polymers is of great interest due to their capability to play an important role in the chemistry of nonporous materials.
In the present study we describe the isolation of plasmid DNA to new high surface area nonporous particulate silica matrix and also to a new laminar format silica disc.
It allows investigators to lift prints from nonporous surfaces at the scene of the crime, not in the lab.