Micrograins on the Surface of Anodic Films |
11.02.2009 г. |
Micrograins on the Surface of Anodic Films V. S. Rudnev, I. V. Lukiyanchuk, and V. G. Kuryavyi Institute of Chemistry, Far Easter Branch, Russian Academy of Sciences, pr. Stoletiya Vladivostoka 159, Vladivostok, 690022 Russia e-mail:
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Received July 25, 2007 Abstract — Data on the composition and structure of micrograins located on the surface of oxide films formed on aluminum by the plasma-electrochemical (PE) method are shown. The studied micrograins represent polyhedral tubes narrowing towards one end with the characteristic size of about 1 m. They are concentrated on the defective surface sites. Micrograins contain considerably higher amounts of carbon, nickel, copper, and other electrolyte components but lower amounts of aluminum and oxygen compared with the oxide film surface. The formation of micrograins and their deposition on the film followed by their treatment with electric discharges is, apparently, one of the mechanisms of the formation of multiphase and multicomponent anodic oxide layers by the PE method. PACS numbers: 82.45.Cc, 81.07.-b DOI: 10.1134/S2070205109010110
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