Electrochemical Study of an ASTM A36 Steel with an Epoxy Coating Reinforced with SiO2 Nanoparticles
| Autor: | José Arturo Ramírez Fernández, Araceli ESPINOZA Vázquez, Jorge Alejandro León Sánchez, Andrés Carmona-Hernandez, Ricardo Orozco Cruz, R. Galván Martínez |
|---|---|
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | ECS Transactions. 110:131-139 |
| ISSN: | 1938-6737 1938-5862 |
| Popis: | The ASTM A36 structural steel was evaluated with the electrochemical techniques, Linear Polarization Resistance (LPR), Electrochemical Impedance Spectroscopy (EIS) and Electrochemical Noise (EN). The techniques were applied to the bare steel substrate, coated, and coated with the addition of SiO2 nanoparticles (NP). The applied coating was a commercial epoxy of two layers. Stöber method was used to obtain the NP and were characterized with X-Ray Diffraction. A coating improved was obtained in the first day of immersion, according to EIS results, that it shows higher impedance compared with the coating without NP. Moreover, with the RE it was possible to observe that the NP reinforced coating showed a better anticorrosive performance, having a localized and mixed corrosion morphology. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|