High Throughput Screening of CMAS Corrosion-Resistant RETaO₄ Based on Lamination Method.

ABSTRACT: Rare earth tantalates (RETaO₄), known for their exceptional thermomechanical properties, are promising candidates for next-generation thermal barrier coatings (TBCs). However, the role of rare earth (RE) species in the CMAS (calcium-magnesium-aluminosilicate) corrosion behavior and mechanisms of RETaO₄ remains unclear, hindering their design and application as TBCs. This study employs a high-throughput approach to systematically investigate the CMAS corrosion mechanisms of RETaO₄ (RE = Nd, Sm, Eu, Gd, Dy, Ho, Y, and Er) at 1300 °C. Precise analysis of the microstructure and composition reveal that the primary corrosion products are (Ca_2-xRE_x)(Ta_2-y-zMg_yAl_z)O₇ solid solutions, along with minor

SUBMITTER: Tian Z 

PROVIDER: S-EPMC11984857 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature