Please use this identifier to cite or link to this item:
https://physrep.ff.bg.ac.rs/handle/123456789/1009
Title: | Characterization of Al[sbnd]W oxide coatings on aluminum formed by pulsed direct current plasma electrolytic oxidation at ultra-low duty cycles | Authors: | Mojsilović, Kristina Tadić, Nenad B. Lačnjevac, Uroš Stojadinović, Stevan Vasilić, Rastko |
Keywords: | Aluminum;Duty- cycle;Oxide coatings;Plasma electrolytic oxidation | Issue Date: | 15-Apr-2021 | Journal: | Surface and Coatings Technology | Abstract: | The growth of thin oxide coatings on the aluminum substrate in water-based sodium tungstate electrolyte by plasma electrolytic oxidation (PEO) is discussed and experimentally illustrated. The growth is carried out using a distinctive ultra-low duty cycle pulsed direct current (DC) power supply. During the PEO processing elements present in micro-discharges are identified using standard optical emission spectroscopy (OES) technique. The spectral line shape analysis of the first two hydrogen Balmer lines shows the presence of two types of micro-discharges. Obtained coatings are also characterized with respect to their morphology and chemical and phase composition. It is shown that coatings are composed of Al, O, and W, featuring low roughness and porosity. Partial crystallization of the coatings resulted in identification of WO3, W3O8, and γ-Al2O3 crystalline phases. |
URI: | https://physrep.ff.bg.ac.rs/handle/123456789/1009 | ISSN: | 0257-8972 | DOI: | 10.1016/j.surfcoat.2021.126982 |
Appears in Collections: | Journal Article |
Show full item record
SCOPUSTM
Citations
14
checked on Nov 16, 2024
Page view(s)
42
checked on Nov 22, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.