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Dielectric breakdown and healing of anodic oxide films on aluminium under single pulse anodizing

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/47414

Title: Dielectric breakdown and healing of anodic oxide films on aluminium under single pulse anodizing
Authors: Sah, Santosh Prasad Browse this author
Tatsuno, Yasuhiro Browse this author
Aoki, Yoshitaka Browse this author
Habazaki, Hiroki Browse this author
Keywords: A. Aluminium
B. SEM
C. Anodic films
C. Oxide coatings
Issue Date: May-2011
Publisher: Pergamon
Journal Title: Corrosion Science
Volume: 53
Issue: 5
Start Page: 1838
End Page: 1844
Publisher DOI: 10.1016/j.corsci.2011.02.001
Abstract: Single pulse anodizing of aluminium micro-electrode has been employed to study the behaviour of dielectric breakdown and subsequent oxide formation on aluminium in alkaline silicate and pentaborate electrolytes. Current transients during applying pulse voltage have been measured, and surface has been observed by scanning electron microscopy. Two types of current transients are observed, depending on the electrolyte and applied voltage. There is a good correlation between the current transient behaviour and the shape of discharge channels. In alkaline silicate electrolyte, circular open pores are healed by increasing the pulse width, but such healing is not obvious in pentaborate electrolyte.
Type: article (author version)
URI: http://hdl.handle.net/2115/47414
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 幅崎 浩樹

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