Journal of Iranian Ceramic Society
Journal of Iranian Ceramic Society
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Mahallat Institute of Higher Education , a.ashofte@gmail.com
Abstract: (297 Views)
Thermal barrier coatings are essential for high-temperature components like turbine blades, as they reduce the heat input to the base superalloy by 100 to 200 Kelvin. This reduction enables operation at higher temperatures, thereby enhancing efficiency. Changing the top layer material presents numerous challenges, including multiple influencing factors, high costs, and complex operating conditions. However, nanostructuring conventional coatings offers a safer, low-risk alternative for performance improvement. This process modifies the coating's structure without altering its material, mitigating many risks associated with new materials. This research investigates the effect of nanostructuring yttria-stabilized zirconia (YSZ) coating on its performance under thermal shock conditions. Conventional and nano-structured YSZ coatings were applied to Inconel 738 disks, and thermal shock tests were conducted using a furnace method. The results demonstrated that the nano-structured coating significantly outperformed the conventional coating.
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