Simulation of the Residual Stress of the Y₂O₃/Al₂O₃ Composite Deuterium Permeation Barrier under Thermal Shock

Figure 6

Comparison of the max principal stress in 3 systems of the same individual thickness: (a) max principal stress in Al₂O₃ coating (); (b) max principal stress in Y₂O₃ coating (); (c) max principal stress in Y₂O₃/Al₂O₃ (150 nm) coating ().

(a) Al₂O₃,

(b) Y₂O₃,

(c) Y₂O₃/Al₂O₃ (150 nm),