| Texto completo | |
| Autor(es): |
Ribeiro, Rafael P.
[1]
;
Rangel, Rita de Cassia C.
[1]
;
Fernandes, Felipe O.
[1]
;
Cruz, Nilson C.
[1]
;
Rangel, Elidiane C.
[1]
Número total de Autores: 5
|
| Afiliação do(s) autor(es): | [1] Univ Estadual Paulista UNESP, Inst Ciencia & Tecnol Sorocaba ICTS, Lab Plasmas Tecnol LaPTec, Av Tres Marco, BR-18087180 Sorocaba, SP - Brazil
Número total de Afiliações: 1
|
| Tipo de documento: | Artigo Científico |
| Fonte: | MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS; v. 24, n. 1 2021. |
| Citações Web of Science: | 0 |
| Resumo | |
Because of its excellent properties, carbon steel is a material widely used in several sectors. However, it is easily corroded when exposed to the environment. Seeking to remedy this problem, the possibility of coating carbon steel with SiOx/SiOxCyHz films generated by deposition and oxidation in low-pressure plasmas was investigated. Specifically, the effects of excitation power of the oxidation plasma on layer thickness, chemical structure, elemental composition, and barrier properties of the obtained coatings were investigated. The coating of the steel with the SiOxCyHz film, generated by plasma in an atmosphere of hexamethyldisiloxane (HMDSO), increased the total resistance to the passage of electric current, measured by electrochemical impedance spectroscopy. However, under the condition of moderate power oxidation (50 W), the results point to the creation of a bilayer system with high resistance to electrochemical attack compared to the SiOxCyHz film, even though its thickness is less than this. (AU) | |
| Processo FAPESP: | 17/21034-1 - Filmes Nanocompósitos Multifuncionais SiO2 -TiO2 e SiO2-TiO2/CeO2 Depositados por Metodologia Híbrida de Plasma |
| Beneficiário: | Elidiane Cipriano Rangel da Cruz |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |