کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
191003 459712 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Polyaniline coatings on aluminium alloy 6061-T6: Electrosynthesis and characterization
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Polyaniline coatings on aluminium alloy 6061-T6: Electrosynthesis and characterization
چکیده انگلیسی

The production of polyaniline films on aluminium alloy 6061-T6 in sulphuric acid was carried out by electrodeposition, using cyclic voltammetry and potentiostatic polarization. The films obtained were characterized by SEM and XPS analysis. Electrochemical techniques were also used to assess the anticorrosive properties of the coatings.The choice of the upper potential limits for potential cycling and of the fixed potential for potentiostatic production should take in consideration the balance between their effect on the minimum number of cycles (or time) needed to produce the film and on the rate of overoxidation.Polarization curves show a slight increase of the corrosion potential for polyaniline coated substrate as compared with bare metal, indicating that no significant protection is achieved by the polymer coating. The Bode diagrams show low impedance values for the alloy covered with polyaniline when compared with the results obtained for the bare metal. This can be attributed to the conductive character of the polyaniline films.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 55, Issue 10, 1 April 2010, Pages 3580–3588
نویسندگان
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