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activated diffusion

activated diffusion

[′ak·də‚vād·əd di′fyü·zhən]
(solid-state physics)
Movement of atoms, ions, or lattice defects across a potential barrier in a solid.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive
Barrer, "The mechanism of activated diffusion through silica glass," Journal of the Chemical Society, vol.
Enhancing hydrogen diffusion in silica matrix by using metal ion implantation to improve the emission properties of silicon nanocrystals
Diffusion data and related activation parameters for the process of diffusion follow the principle of Eyring's theory of activated diffusion of molecules into the PU network structures.
Transport characteristics of carboxylic acids based chain extended PU membranes with n-alkane penetrants
The application of the repair brazing is based on the effect of an activated diffusion interaction between particles of a composite brazing alloy and surfaces joined, being a result of a contact fusion of surface of particles and part wall by a low-melting component of the brazing alloy, and also by a post heat treatment of the brazed joint at temperature, lower by 80-120 [degrees]C than maximum (approx.
Repair brazing of parts of the turbine hot path
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