Hot Corrosion Behavior of La2Ce2O7-Based Plasma-Sprayed Coating
High Temperature Corrosion of Materials(2024)
Abstract
La2Ce2O7 (LC) has been identified as a promising thermal barrier coating (TBC) for use up to 1250 °C. In this study, a TBC system was deposited on grit-blasted Inconel 738 using atmospheric plasma spraying (APS) with NiCrAlY as the bond coat, followed by YSZ, and then LC as the top layer. The coatings were exposed to a mixture of molten Na2SO4 (45 wt.
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Key words
Thermal barrier coating,La2Ce2O7,Hot corrosion,High-temperature coating,Yttria-stabilized zirconia
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