Deposição de filmes de ZrO2 modificados sobre substratos metálicos
This work makes use of the Pechini process for synthesis of the solutions and the dip-coating process for the addition of zirconium oxide films pure and doped cerium metal substrates. The metals with ceramic substrates were subjected to severe conditions of salinity. The x-ray fluorescence of the su...
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| Formato: | Dissertação |
| Idioma: | por |
| Publicado em: |
Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/jspui/handle/123456789/17632 |
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| Resumo: | This work makes use of the Pechini process for synthesis of the solutions and
the dip-coating process for the addition of zirconium oxide films pure and doped
cerium metal substrates. The metals with ceramic substrates were subjected to
severe conditions of salinity. The x-ray fluorescence of the substrate showed a great
diversity of chemical elements. The x-ray diffraction of the samples showed the
phase of iron substrate because the thickness of nano-thin film. Tests using an LPR
probe showed that the film presents with zirconia corrosion independent of film
thickness. The substrates of ZrO2-doped ceria showed low chemical attack of the salt
in films with less than 15 dives. The results imply that ultrathin films are shown in
protecting metallic substrates |
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