| Full text | |
| Author(s): |
Lívia Sottovia
[1]
;
Maria Lúcia Pereira Antunes
[2]
;
César Augusto Antonio
[3]
;
Elidiane Cipriano Rangel
[4]
;
Nilson Cristino da Cruz
[5]
Total Authors: 5
|
| Affiliation: | [1] Universidade Estadual Paulista - Brasil
[2] Universidade Estadual Paulista - Brasil
[3] Universidade Estadual Paulista - Brasil
[4] Universidade Estadual Paulista - Brasil
[5] Universidade Estadual Paulista - Brasil
Total Affiliations: 5
|
| Document type: | Journal article |
| Source: | MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS; v. 17, n. 6, p. 1404-1409, 2014-12-00. |
| Abstract | |
In this paper, we propose the production of ceramic protective thin films by plasma electrolytic oxidation using red mud-containing electrolytes. The treatments were performed through the application of pulsed voltage (600 V, 200 Hz) during 300 seconds to aluminum samples immersed in electrolytic solutions with 5 g of red mud per liter of distilled water. The coatings were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray energy dispersive spectroscopy (EDS) and contact angle and surface energy measurements. The final current density during the experiments was 0.05 A/cm² and films as thick as 9.0 µm have been obtained. XRD patterns have clearly shown the incorporation of species from the red mud on the coating. (AU) | |
| FAPESP's process: | 11/23733-8 - Protective ceramic coatings for aluminum alloys |
| Grantee: | Nilson Cristino da Cruz |
| Support Opportunities: | Regular Research Grants |