稀土锆酸盐热障涂层的合金化改性研究进展

Thermal barrier coatings (TBCs) are one of the effective ways to raise the upper limit operating temperature of aero-engine hot end components. Rare earth zirconate (RE_2-xZr_2+xO₇₊x_/2) is considered as a candidate material for the new generation of TBCs due to its low thermal conductivity and good high-temperature phase stability. Given to the strong performance designability of (RE_2-xZr_2+xO₇₊x_/2), research progress on mechanical and thermophysical properties and corrosion resistance of conventional alloying modified and high entropy modified rare earth zirconate coating was reviewed based on the alloying design idea, and the prospect for subsequent research was proposed based on the deficiency of current research.