Abstract:Formation and evolution of the thermally grown oxides(TGO) have great effect on the properties of
thermal barrier coatings( TBCs), suggesting a sticking point for analyzing TBCs failure and prolonging the life of
TBCs. The research progress of the oxidation behavior of TBCs worldwide is summarized,including oxidation kinetics
of bond coating(BC),composition,structure and evolution of TGO,and transformation from metastable Al2O3 to stable
Al2O3. Effects of elements from BC on the morphology and structure of TGO is analyzed,as well as the elements diffused
from substrate. Idea for research of BC-oxidation behavior and methods for properties-improvement of TBCs are
indicated.
