Sol–gel coatings doped with organosilane and cerium to improve the properties of hot-dip galvanized steel
| Autor: | Hsiang-Yu Su, Chao-Sung Lin, Pei-Li Chen |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
General Chemical Engineering chemistry.chemical_element 02 engineering and technology engineering.material 010402 general chemistry 01 natural sciences Corrosion chemistry.chemical_compound symbols.namesake X-ray photoelectron spectroscopy Coating General Materials Science Sol-gel Metallurgy Doping technology industry and agriculture General Chemistry 021001 nanoscience & nanotechnology Galvanization 0104 chemical sciences Cerium nitrate Cerium chemistry Chemical engineering engineering symbols 0210 nano-technology |
| Zdroj: | Corrosion Science. 102:63-71 |
| ISSN: | 0010-938X |
| DOI: | 10.1016/j.corsci.2015.09.019 |
| Popis: | An inorganic sol–gel coating and an inorganic/organic hybrid sol–gel coating without and with cerium nitrate were made on hot-dip galvanized steel via a roll coating process. Results showed that the corrosion resistance of the hot-dip galvanized steel was improved with the inorganic coating; however, cracks were present in the coating. Cracks were effectively eliminated and paintability of the sol–gel coating was enhanced while doped with organic precursor. The corrosion resistance and self-healing capability were further enhanced when cerium cation was doped. Finally, the corrosion protection mechanism of the various coatings was discussed in detail. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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