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 gamma-Al2O3 crystalline phases.
Ministry of Education, Science, and Technological Development of the Republic of SerbiaMinistry of Education, Science & Technological Development, Serbia
European Union Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant [823942]
TY - JOUR
AU - Mojsilović, Kristina
AU - Tadić, Nenad B.
AU - Lačnjevac, Uroš
AU - Stojadinović, Stevan
AU - Vasilic, Rastko
PY - 2021
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/1452
AB - 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 gamma-Al2O3 crystalline phases.
PB - Elsevier Science Sa, Lausanne
T2 - Surface & Coatings Technology
T1 - Characterization of Al-W oxide coatings on aluminum formed by pulsed direct current plasma electrolytic oxidation at ultra-low duty cycles
VL - 411
DO - 10.1016/j.surfcoat.2021.126982
ER -
@article{
author = "Mojsilović, Kristina and Tadić, Nenad B. and Lačnjevac, Uroš and Stojadinović, Stevan and Vasilic, Rastko",
year = "2021",
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 gamma-Al2O3 crystalline phases.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Surface & Coatings Technology",
title = "Characterization of Al-W oxide coatings on aluminum formed by pulsed direct current plasma electrolytic oxidation at ultra-low duty cycles",
volume = "411",
doi = "10.1016/j.surfcoat.2021.126982"
}
Mojsilović, K., Tadić, N. B., Lačnjevac, U., Stojadinović, S.,& Vasilic, R.. (2021). Characterization of Al-W oxide coatings on aluminum formed by pulsed direct current plasma electrolytic oxidation at ultra-low duty cycles. in Surface & Coatings Technology
Elsevier Science Sa, Lausanne., 411.
https://doi.org/10.1016/j.surfcoat.2021.126982
Mojsilović K, Tadić NB, Lačnjevac U, Stojadinović S, Vasilic R. Characterization of Al-W oxide coatings on aluminum formed by pulsed direct current plasma electrolytic oxidation at ultra-low duty cycles. in Surface & Coatings Technology. 2021;411.
doi:10.1016/j.surfcoat.2021.126982 .
Mojsilović, Kristina, Tadić, Nenad B., Lačnjevac, Uroš, Stojadinović, Stevan, Vasilic, Rastko, "Characterization of Al-W oxide coatings on aluminum formed by pulsed direct current plasma electrolytic oxidation at ultra-low duty cycles" in Surface & Coatings Technology, 411 (2021),
https://doi.org/10.1016/j.surfcoat.2021.126982 . .
