Corrosion resistance and chemical stability of super-hydrophobic film deposited on magnesium alloy AZ31 by microwave plasma-enhanced chemical vapor deposition

被引：297

作者：

Ishizaki, Takahiro ^{[1
]}

Hieda, Junko ^{[2
]}

Saito, Nagahiro ^{[3
]}

Saito, Naobumi ^{[1
]}

Takai, Osamu ^{[2
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Mat Res Inst Sustainable Dev, Moriyama Ku, Nagoya, Aichi 4638560, Japan

[2] Nagoya Univ, Dept Mat Phys & Energy Engn, Grad Sch Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[3] Nagoya Univ, EcoTopia Sci Inst, Chikusa Ku, Nagoya, Aichi 4648603, Japan

来源：

ELECTROCHIMICA ACTA | 2010年 / 55卷 / 23期

关键词：

Super-hydrophobic film; Plasma CVD; Magnesium alloy; Corrosion resistance; Electrochemical impedance spectroscopy; SOLUTION-IMMERSION PROCESS; SUPERHYDROPHOBIC SURFACES; PURE MAGNESIUM; THIN-FILM; MG ALLOY; FABRICATION; COPPER; ALUMINUM; COATINGS; ZINC;

D O I：

10.1016/j.electacta.2010.06.064

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A super-hydrophobic film was successfully deposited on magnesium alloy AZ31 by the microwave plasma-enhanced chemical vapor deposition (MPECVD) process. The film surface showed a static water contact angle of more than 150 degrees. The hydrophobicity and root mean square roughness of the film surface increased with an increase in deposition time. The anticorrosion resistance of the deposited film was estimated by electrochemical impedance spectroscopy (EIS) measurements. The EIS measurements and appropriate equivalent circuit models revealed that the super-hydrophobic film considerably improved the anticorrosion resistant performance of magnesium alloy AZ31. The anticorrosion mechanism of the super-hydrophobic film was also considered. Moreover, the chemical stability of the super-hydrophobic film in acidic, neutral, and alkaline aqueous solutions was investigated. The super-hydrophobic film showed high chemical stability in acidic and neutral aqueous solutions. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：7094 / 7101

页数：8

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