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diffusion barrier |
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diffusion barrier [də′fyü·zhən ‚bar·ē·ər] (chemical engineering) Porous barrier through which gaseous mixtures are passed for enrichment of the lighter-molecular-weight constituent of the diffusate; used as a many-stage cascade system for the recovery of235UF6isotopes from a238UF6stream. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| That's one area where he and his colleagues believe the clay nanoparticles will help--by acting as a diffusion barrier, to slow the progress of the supercritical C[O. Often, the material of choice when both elastomeric flexibility (particularly at low temperatures) and diffusion barrier are required has been butyl rubber. The shell covers the functional parts of the tank (pump flange, fittings, breather and vent lines, valves, sensors, filter, and tank seam), eliminating the need for complex diffusion barriers. |
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