porosity


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia, Wikipedia.

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 ?
As mentioned in previous section, considering porosity and hydraulic conductivity independent does not provide good results.
According to the model, the maximum shrinkage porosity (volume fraction) possible is equal to the density at the solidus temperature minus the density at the liquidus temperature, divided by the density at the solidus temperature.
including both convection and diffusion, or just considering pure diffusion), adopting effective porosity, taking into account tortuosity, and specifying a correct effective heat conduction coefficient, etc.
Empirically correlating ultrasonic wavespeed measurements with material porosity requires reference samples that have independently-characterized amounts of porosity.
The porosity base on neutron log measurement is explained by following relation:
The purpose of this research was to locate areas characterized by high pedestrian porosity within the 12 km border zone.
The porosity of the drainage layer (p) is calculated knowing drainage density and particle density and is expressed as a percentage by volume:
It is obvious that the ranges of all of the effective porosity values were unsuitable, especially with the gravels, which are all above 100% effective porosity.
Testing of the influence of vacuum and pouring temperature on porosity of castings was conducted at laboratory of the Department for Casting of the Faculty of Mechanical Engineering and Naval Architecture in Zagreb.
Of the 15 remaining, seven were completed to produce oil from shallower zones in the Wolfcamp formations, no porosity having been found in the Strawn.
Synthesis of new fibers with high selectivity and porosity from nanostructured materials has extended their applications.