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Porosity
Porosity or void fraction is a measure of the void (i.e. "empty") spaces in a material, and is a fraction of the volume of voids over the total volume, between 0 and 1, or as a percentage between 0% and 100%. Strictly speaking, some tests measure the "accessible void", the total amount of void space accessible from the surface (cf. closed-cell foam).
There are many ways to test porosity in a substance or part, such as industrial CT scanning.
The term porosity is used in multiple fields including pharmaceutics, ceramics, metallurgy, materials, manufacturing, petrophysics, hydrology, earth sciences, soil mechanics, rock mechanics, and engineering.[1]
- ^ Mohammadizadeh, SeyedMehdi; Moghaddam, Mehdi Azhdary; Talebbeydokhti, Naser (2021). "Analysis of Flow in Porous Media using Combined Pressurized-Free surface Network". Journal of Porous Media. 24 (10). Begel House Inc.: 1–15. doi:10.1615/JPorMedia.2021025407. S2CID 235877042.
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