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A new method for crack healing in thermal barrier coatings (TBCs) for turbine blades in the hot section of turbine engines relying on the oxidation of embedded spherical MoSi2(B) healing particles is reported. The oxidative decomposition at high temperatures of MoSi2(B) embedded in a TBC leads to the formation of amorphous SiO2 which flows into cracks and establishes direct contact with the crack...