Open AccessМеханизм формирования трубчатого оксида титана электрохимическим анодированием
Author(s) -
С.К. Лазарук,
О.В. Купреева,
Д.А. Циркунов,
Д.А. Сасинович,
В.В. Дудич,
Г.Г. Рабатуев
Publication year - 2020
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2020.05.49174.218-19
Subject(s) - barrier layer , titanium , materials science , oxide , electrochemistry , anode , anodic oxidation , current density , titanium oxide , layer (electronics) , chemical engineering , porosity , composite material , metallurgy , chemistry , electrode , physics , quantum mechanics , engineering
The conditions for the formation of anodic titanium oxide with a tubular structure were studied. The mechanism for the formation of tubular titanium oxide based on the localization of the electrochemical oxidation of titanium in the places of the barrier layer at the bottom of the pore, where the density of the flowing anodic current is increased, as a result of which the temperature of these regions increases. With an increase in the temperature of the barrier layer above the threshold value, a transition from the traditional «honeycomb-like» porous structure to the tubular structure takes place. The proposed mechanism is confirmed by the results of experimental research.