Fig. 1. Schematic illustration of nanoalloy preparation and joint cross-section. (a) Pulsed laser deposition of nanoalloy; (b) cross-section of SiC and DBC substrate joint

Fig. 2. As-deposited Ag-10%Pd nanoalloy film. (a) Ag-10%Pd nanoalloy film; (b) high magnification of Ag-10%Pd nanoalloy; (c) element distribution of Ag in nanoalloy; (d) element distribution of Pd in nanoalloy

Fig. 3. Size distribution of Ag-10%Pd nanoalloy particles. (a) Number distribution; (b) volume ratio

Fig. 4. Sintered joint using Ag-10%Pd nanoalloy and elements distribution in the joint (sintering temperature of 300 ℃). (a) Macro morphology of joint; (b) elements distribution by line scanning

Fig. 5. Typical microstructures and element distribution of Ag-10%Pd sintered layer (sintering temperature of 300 ℃). (a) Microstructure of Ag-Pd sintered layer; (b) Ag distribution; (c) Pd distribution

Fig. 6. Effect of sintering temperature on joint shear strength

Fig. 7. Typical fracture surface of nanoalloy sintered joint (sintering temperature of 300 ℃). (a) Macro morphology of fracture surface; (b) high magnification of fracture surface

Fig. 8. Short-circuit current variation with time for Ag-10%Pd nanoalloy and pure Ag

Fig. 9. Electrochemical-migration product. (a) Pure Ag; (b) Ag-10%Pd