Thin films produced on 5052 aluminum alloy by plasma electrolytic oxydation with red mud-containing electrolytes
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 so...
| Autores: | , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2014 |
| País: | Brasil |
| Institución: | Universidade Estadual Paulista (UNESP) |
| Repositorio: | Repositório Institucional da UNESP |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.unesp.br:11449/130266 |
| Acceso en línea: | http://www.scielo.br/scielo.php?pid=S1516-14392014000600007&script=sci_arttext http://hdl.handle.net/11449/130266 |
| Access Level: | acceso abierto |
| Palabra clave: | Plasma electrolytic oxidation Ceramic coatings Red mud |
| Sumario: | 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/cm(2) and films as thick as 9.0 mu m have been obtained. XRD patterns have clearly shown the incorporation of species from the red mud on the coating. |
|---|