Diffusion membrane tseem hu ua" sib cais membrane". Ib tug hlau membrane nrog ib tug zoo ntxeem tau qauv. Cov micropores tuaj yeem txwv cov huab cua zoo tib yam thiab tso cai rau cov dej ntws mus dhau, yog li qhov sib txawv loj tuaj yeem siv rau kev sib cais isotopic. Piv txwv li, thaum cov roj diffusion txoj kev cais uranium isotopes, diffusion membrane feem ntau yog ua los ntawm sintered npib tsib xee (ceramics los yog polytetrafluoroethylene kuj siv).
Muaj ntau pua lab ntawm micropores ib square centimeter ntawm daim nyias nyias, nrog ib txoj kab uas hla ntawm 0.01-0.03 microns. Lawv yuav tsum ua kom tau raws li qhov yuav tsum tau ua ntawm cov txheej txheem sib cais, thiab tseem muaj kev ruaj ntseg, kev ntseeg tau thiab qee yam kev siv lub zog hauv cov txheej txheem kub thiab corrosive uranium hexafluoride. Nws txoj kev loj hlob yog lub ntsiab technical key ntawm cov roj diffusion cog.