کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7642391 1494870 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Application of sol-gel method for the conservation of copper alloys
ترجمه فارسی عنوان
استفاده از روش سل ژل برای حفاظت از آلیاژهای مس
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
In the present study, SiO2 coatings are presented as an alternative to the traditional ones, used in conservation of metals. The preparation of methyl-modified nanosilica coatings by the sol-gel technique to protect the external surface of copper alloys is discussed herein. The methyl-modified silica sols were obtained by mixing of 3% SiO2 sol solution with hexamethyldisilozane (HMDS). The surface of brass and bronze specimens was coated by dip-coating technique. The structural features of the coatings were evaluated by FTIR spectroscopy. The hydrophobicity of the surfaces was investigated by contact angle measurements. The surface morphology changes of bare and coated specimens prior and after photochemical ageing were evaluated by atomic force microscopy (AFM) and scanning electron microscopy (SEM). Potentiodynamic measurements were obtained in order to compare corrosion parameters of the coatings.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microchemical Journal - Volume 124, January 2016, Pages 623-628
نویسندگان
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