Comparative Study of Structure and Permeability of Porous Oxide Films on Aluminum Obtained by Single- and Two-Step Anodizationстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 6 сентября 2017 г.
Аннотация:A comparative study of the structure and transport
properties of porous aluminum oxide films obtained by single- and
two-step anodization was carried out. It is shown that the oxidation
regime significantly affect the number of dead-ended channels,
which results in more than twice the variation in membrane
permeability. The effect is explained by multiple branching of
channels on the initial stages of organization of the porous structure.
Branching also occurs on later stages governing mass transport
properties of porous anodic alumina films. A model describing
transport properties of anodic aluminum oxide membranes based on
pore branching on domain boundaries was suggested to fit experimental results of permeance of membranes obtained by both
single- and two-step anodization.