Preparation and characterization of $ ( \mathrm{La_{0.2}}\mathrm{Sm_{0.2}}\mathrm{Nd_{0.2}}\mathrm{Y_{0.2}}\mathrm{M_{0.2}})_2 $$ \mathrm{Zr_2O_7} $ (M = Yb or Lu) as potential thermal barrier coating materials

Traditional rare-earth zirconates are limited by mismatched thermophysical properties for advanced thermal barrier coating (TBC).