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 ?
The result collected from both plaster clearly said that the variation in water plaster ratio will affect the absorption and porosity properties and flexural strength of the plaster mould.
With the help of these predicted logs, the mapping of attribute volume of porosity along with cross-sections is carried out (Bender and Raza, 1995).
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.
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 porosity was estimated in subsurface layer to the depth of 1 cm in both methods of porosity determination.
Drainage porosity will be lower than the actual porosity as a result of incomplete draining of leachate under gravity due to the fluid adhering to drainage medium and clog material (McIsaac, Rowe 2008).
3] equation, the resulting equations can be solved for specific capacity and effective porosity.
Figure 2 illustrates the internal porosity present in a 3.
Key words: casting defects, gas dissolution, porosity, influence of vacuum, aluminum alloys