کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
190109 459692 2011 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The influence of surface treatment on the anodizing of magnesium in alkaline solution
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
The influence of surface treatment on the anodizing of magnesium in alkaline solution
چکیده انگلیسی

The mechanism of magnesium anodizing after mechanical polishing or HF pickling was studied. X-ray Photoelectron Spectroscopy and Photocurrent Spectroscopy were employed to characterize both the initial films formed on Mg soon after surface treatments and the anodic films grown in strongly alkaline solutions. Electrochemical and capacitance measurements were performed in order to study the oxidation process and to check if the kinetic of growth fits the Mott–Cabrera high field model. From Tafel plots it was possible to estimate the activation distance, while the simulation of the barrier layer growth as a function of the potential at high scan rate allowed to estimate the other kinetic parameters of Mott–Cabrera model. An influence of the initial layer composition on such parameters was evidenced.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 56, Issue 28, 1 December 2011, Pages 10533–10542
نویسندگان
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