Plasma-sprayed YSZ coatings: Microstructural features and resistance to molten metals
| Autor: | G. Vourlias, Eleni Pavlidou, G. A. Stergioudis, Konstantinos Chrissafis, N. Pistofidis, P. Psyllaki |
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| Rok vydání: | 2009 |
| Předmět: |
Thermogravimetric analysis
Materials science Scanning electron microscope Mechanical Engineering Metals and Alloys Mineralogy chemistry.chemical_element Microstructure Corrosion chemistry Mechanics of Materials Aluminium visual_art Materials Chemistry visual_art.visual_art_medium Ceramic Composite material Thermal analysis Yttria-stabilized zirconia |
| Zdroj: | Journal of Alloys and Compounds. 483:382-385 |
| ISSN: | 0925-8388 |
| DOI: | 10.1016/j.jallcom.2008.07.209 |
| Popis: | Yttria Stabilized Zirconia (YSZ) coatings deposited by plasma spraying are widely used as thermal barriers onto metallic substrates, due to their attractive thermal properties and chemical inertia. In the present study, YSZ coatings were deposited onto steel substrates and their microstructure was investigated with X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The micro- and nano-scopic structural features were correlated to the performance of the coatings against corrosion by molten metals, which could simulate the industrial conditions of numerous applications. More precisely, in-scale porosity of the coatings and crystal parameters modifications were systematically examined and correlated to the corrosion behaviour in molten zinc, tin and aluminium baths for a 6 days testing period. The structural stability of the ceramic coating at high temperature, as well as the reactivity of the molten metal on the ceramic surface were preliminarily evaluated by thermogravimetric analysis and differential scanning calorimetry. |
| Databáze: | OpenAIRE |
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