Evaluation of the electrochemical performance of Ag containing AAO layers after extended exposure to a model corrosive medium
| العنوان: | Evaluation of the electrochemical performance of Ag containing AAO layers after extended exposure to a model corrosive medium |
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| المؤلفون: | Denitsa D. Kiradzhiyska, G. V. Avdeev, S. Kozhukharov, Christian Girginov, Aleksander Tsanev |
| المصدر: | Journal of Electrochemical Science and Engineering Volume 10 Issue 4 Journal of Electrochemical Science and Engineering, Vol 10, Iss 4, Pp 317-334 (2020) |
| بيانات النشر: | International Association of Physical Chemists (IAPC), 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Materials science, Alloy, Oxide, engineering.material, Corrosion, porous structures, protective abilities, lcsh:Chemistry, Protective abilities Reaxys Chemistry database information, chemistry.chemical_compound, Colloid and Surface Chemistry, X-ray photoelectron spectroscopy, Coating, Electrochemistry, Materials Chemistry, Chemical Engineering (miscellaneous), al-o-ag layers, Al-O-Ag layers, Anodizing, compositions, Porous structures, Dielectric spectroscopy, Compositions, lcsh:QD1-999, Chemical engineering, chemistry, engineering, Layer (electronics) |
| الوصف: | The coating procedure appears to be an indispensable finishing stage in the production of Al based industrial products, engineering facilities and equipment. For this reason, there is an ever-increasing interest towards the elaboration of reliable corrosion protective layers with apparent coverage, adhesion, and barrier properties. In this sense, both the formation of anodized aluminum oxide (AAO) layer and its further modification with silver enable the elaboration of advanced (Al-O-Ag) films with extended beneficial characteristics. The present research activities are aimed at the determination of the corrosion protective properties of electrochemically synthesized Al-O-Ag layers on the technically pureAA1050 alloy. The structures and compositions of the obtained Al-O-Ag layers were characterized by X-ray diffractometry (XRD) and X-ray photoelectron spectroscopy (XPS). The research activities were accomplished by means of two independent electrochemical characterization methods: electrochemical impedance spectroscopy (EIS) and potentiodynamic scanning (PDS). The electrochemical measurements were performed after 24, 168 and 672 hours of exposure to 3.5% NaCl solution used as a model corrosive medium (MCM), in order to determine the barrier properties and durability of the elaborated Al-O-Ag layers. The analysis of the obtained results has undoubtedly shown that the proposed electrochemical Al-O-Ag layer formation can successfully be used for the creation of self-standing layers with apparent corrosion protective properties. Besides, Al-O-Ag system can be used as a basis for development of efficient protective layers suitable for application in biologically contaminated media. |
| وصف الملف: | application/pdf |
| تدمد: | 1847-9286 |
| DOI: | 10.5599/jese.820 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b83854f3c550d8b4037bc56d4077d962 https://doi.org/10.5599/jese.820 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....b83854f3c550d8b4037bc56d4077d962 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 18479286 |
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| DOI: | 10.5599/jese.820 |