Fracture characteristics of rare-earth phosphate and silicate environmental barrier coatings under molten CMAS corrosion.

ABSTRACT: The fracture characteristics of rare-earth phosphate (LuPO₄) and silicate (Lu₂SiO₅) environmental barrier coating (EBC) materials under molten calcium-magnesium aluminosilicate (CMAS) corrosion are analyzed. EBCs are crucial for protecting SiC-based ceramic matrix composite components in the hot section of gas turbine engines. Recently the rare-earth phosphates as EBC materials have shown better performance than third-generation rare-earth silicates under CMAS corrosion. However, the fracture of EBCs under CMAS corrosion during service remains a significant concern. This work investigates the fracture characteristics of LuPO₄ and Lu₂SiO₅ using a combined experimental and computational approach. The computational model uses e

SUBMITTER: Sarkar S 

PROVIDER: S-EPMC12000324 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature