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۱Effect of Incorporation of Inhibitor Loaded Mesoporous Silica on the Corrosion Behavior of Epoxy Coatings
نویسنده(ها): ، ،
اطلاعات انتشار: Journal of Ultrafine Grained and Nanostructured Materials، چهل و ششم،شماره۱، ۲۰۱۳، سال
تعداد صفحات: ۷
In this research, mesoporous silica was applied as the host of corrosion inhibitor (molybdate). The loaded mesoporous silica was dispersed in an epoxy matrix. The composite was then coated on the mild steel plate. Results showed that the corrosion resistance of the scratched epoxy\mesoporous silica loaded by molybdate was better than the one without molybdate or neat epoxy. On the other hand, EDX and FTIR studies showed the release of corrosion inhibitor in the scratched zone. It was due to pH–sensitive release of corrosion inhibitor in the aggressive media. Also, XRD data showed the presence of Mo compounds on the surface of steel.

۲Oxidation resistance of the nanostructured YSZ coating on the IN–738 superalloy
اطلاعات انتشار: Journal of Ultrafine Grained and Nanostructured Materials، چهل و هفتم،شماره۲، ۲۰۱۴، سال
تعداد صفحات: ۸
Conventional and nanostructured YSZ coatings were deposited on the IN–738 Ni super alloy by the atmospheric plasma spray technique. The oxidation was measured at 1100°C in an atmospheric electrical furnace. According to the experimental results the nanostructured coatings showed a better oxidation resistance than the conventional ones. The improved oxidation resistance of the nanocoating could be explained by the change in structure to a dense and more packed structure in this coating. The mechanical properties of the coatings were tested using the thermal cyclic, nanoindentation and bond strength tests, during which the nanostructured YSZ coating showed a better performance by structural stability.
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