Permeation
Penetration of a liquid, gas, or vapor through a solid / From Wikipedia, the free encyclopedia
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"Permeate" redirects here. For the milk product, see Milk permeate.
In physics and engineering, permeation (also called imbuing) is the penetration of a permeate (a fluid such as a liquid, gas, or vapor) through a solid. It is directly related to the concentration gradient of the permeate, a material's intrinsic permeability, and the materials' mass diffusivity.[1] Permeation is modeled by equations such as Fick's laws of diffusion, and can be measured using tools such as a minipermeameter.