出典:Wiktionary
porosity (countable かつ uncountable, 複数形 porosities)
出典:Wikipedia
出典:『Wikipedia』 (2011/05/25 11:51 UTC 版)
Porosity or void fraction is a measure of the void spaces in a material, and is a fraction of the volume of voids over the total volume, between 0–1, or as a percentage between 0–100%. The term is used in multiple fields including pharmaceutics, ceramics, metallurgy, materials, manufacturing, earth sciences and construction.