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Efficient growth of anodic films on magnesium in organic electrolytes containing fluoride and water

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Title: Efficient growth of anodic films on magnesium in organic electrolytes containing fluoride and water
Authors: Habazaki, Hiroki Browse this author →KAKEN DB
Kataoka, Fumitaka Browse this author
Tsuji, Etsushi Browse this author
Aoki, Yoshitaka Browse this author
Nagata, Shinji Browse this author
Skeldon, Peter Browse this author
Thompson, George E. Browse this author
Keywords: Anodizing
Anodic film
Organic electrolyte
Issue Date: Sep-2014
Publisher: Elsevier Science
Journal Title: Electrochemistry Communications
Volume: 46
Start Page: 30
End Page: 32
Publisher DOI: 10.1016/j.elecom.2014.06.011
Abstract: The present study reports, for the first time, the highly efficient formation of barrier-type anodic films, with flat and parallel metal/film and film/electrolyte interfaces, on magnesium in ethylene glycol electrolytes containing ammonium fluoride and water. The anodizing voltage increases linearly with time during galvanostatic anodizing at 10Am(-2) up to 350 V.The anodic film formed to 200V is 247 nm thick, containing a crystalline MgF2 phase. Analysis by Rutherford backscattering spectroscopy discloses the film composition of MgF1.8O0.1 and Pilling-Bedworth ratio (PBR) of 1.67. The PBR value greater than unity and the formation of chemically stable fluoride-based films may contribute to the film growth at high current efficiency.
Type: article (author version)
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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