Effect of SUS316L stainless steel surface conditions on the wetting of molten multi-component oxides ceramic
| Autor: | Noriko Miyoshi, Jin Wang, Nobuya Shinozaki, Nozomu Matsuda, Takanobu Shiraishi |
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| Rok vydání: | 2015 |
| Předmět: |
Materials science
fungi Metallurgy technology industry and agriculture Oxide General Physics and Astronomy Polishing chemistry.chemical_element Surfaces and Interfaces General Chemistry Cermet Condensed Matter Physics Oxygen Surfaces Coatings and Films Contact angle chemistry.chemical_compound chemistry visual_art Surface roughness visual_art.visual_art_medium Wetting Ceramic |
| Zdroj: | Applied Surface Science. 327:470-477 |
| ISSN: | 0169-4332 |
| Popis: | A study on the effect of SUS316L stainless steel surface conditions on the wetting behavior of molten multi-component oxides ceramic was performed and aimed to contribute to the further understanding of the application of oxides ceramic in penetration treatment of stainless steel coatings and the deposition of stainless steel cermet coatings. The results show that at 1273 K, different surface pre-treatments (polishing and heating) had an important effect on the wetting behavior. The molten multi-component oxides showed good wettability on both stainless steel substrates, however, the wetting process on the polished substrate was significantly slower than that on the heated substrates. The mechanism of the interfacial reactions was discussed based on the microscopic and thermodynamic analysis, the substrates reacted with oxygen generated from the decomposition of the molten multi-component oxides and oxygen contained in the argon atmosphere, and the oxide film caused the molten multi-component oxides ceramic to spread on the substrates surfaces. For the polished substrate, more time was required for the surface oxidation to reach the surface composition of Heated-S, which resulted in relatively slow spreading and wetting rates. Moreover, the variance of the surface roughness drove the final contact angles to slightly different values following the sequence Polished-S > Heated-S. |
| Databáze: | OpenAIRE |
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