Influence of PAA on the Microstructure and Corrosion Resistance of Electrophoretically Deposited SiO2 and Ni/SiO2 Coatings on X2CrNiMo17-12-2 Steel
| Autor: | Tomasz Ratajski, Izabela Kalemba-Rec, Beata Dubiel |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
lcsh:TN1-997 Materials science Materials processing electrosteric stabilization PAA Metallurgy Metals and Alloys Industrial chemistry 02 engineering and technology 021001 nanoscience & nanotechnology Microstructure 01 natural sciences nanocomposite Ni/SiO2 coatings Corrosion electrophoretic deposition (EPD) 0103 physical sciences lcsh:TA401-492 lcsh:Materials of engineering and construction. Mechanics of materials 0210 nano-technology lcsh:Mining engineering. Metallurgy SiO2 coatings |
| Zdroj: | Archives of Metallurgy and Materials, Vol 62, Iss 4, Pp 2073-2079 (2017) |
| ISSN: | 2300-1909 |
| Popis: | The effect of anionic surfactant in the form of polyacrylic acid (PAA) on the electrophoretic deposition of the SiO2and Ni/SiO2coatings on X2CrNiMo17-12-2 stainless steel was examined. Parameters of the process, such as chemical composition of the suspensions, voltage between the electrodes and the deposition time were experimentally selected. Zeta potential measurements showed a beneficial effect of polyacrylic acid on the SiO2and Ni particles stability in ethanol. Scanning and transmission electron microscopy studies revealed that the microstructure of the coatings obtained from the suspensions containing polyelectrolyte is more homogenous and has less amount of desiccation cracks on the surface. The results of the polarization tests have shown that addition of anionic surfactant improves also corrosion resistance of the coatings in 3.5% NaCl solution. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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