Non-linear model of impurity diffusion in nanoporous materials upon ultrasonic treatment

Non-linear theory of diffusion of impurities in porous materials upon ultrasonic treatment is described. It is shown that at a defined value of deformation amplitude, an average concentration of vacancies and temperature as a result of the effect of ultrasound possibly leads to the formation of nano...

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Bibliographic Details
Published in:Condensed matter physics 2014-01, Vol.17 (2), p.23601
Main Authors: Peleshchak, Kuzyk, Dan'kiv
Format: Article
Language:English
Subjects:
diffusion coefficient
pore
ultrasound
vacancy
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Summary:Non-linear theory of diffusion of impurities in porous materials upon ultrasonic treatment is described. It is shown that at a defined value of deformation amplitude, an average concentration of vacancies and temperature as a result of the effect of ultrasound possibly leads to the formation of nanoclusters of vacancies and to their periodic educations in porous materials. It is shown that at a temperature smaller than some critical value, a significant growth of a diffusion coefficient is observed in porous materials.
ISSN:1607-324X
DOI:10.5488/CMP.17.23601