Fig. 1. Rapidly solidification process.
Fig. 2. (a) XRD pattern and (b) TEM image of Si50Al30Fe20 amorphous alloy.
Fig. 4. XRD patterns of Si50Al30Fe20 alloys in pristine state and further annealed 673 K, 773 K, 873 K, and 973 K, respectively.
Fig. 5. TEM and SAED patterns of Si50Al30Fe20 alloys at (a) pristine state and further annealed at (b) 873 K, and (c) 973 K, respectively.
Fig. 6. TEM micrographs of Si50Al30Fe20 alloys and EDS-mapping of Si, Al and Fe elements in (a) pristine state and further annealed (b) 873 K, and (c) 973 K, respectively.
Fig. 8. Corresponding dQ/dV plots of Si50Al30Fe20 alloys in (a) pristine state, and further annealed at (b) 673 K, (c) 773 K, (d) 873 K, and (e) 973 K, respectively.
Fig. 3. DSC plot of Si50Al30Fe20 alloy (dashed line indicates annealing temperature used in this study).
Fig. 7. (a) Initial charge-discharge curves and (b) charge-discharge curves on 2nd cycle of Si50Al30Fe20 alloys in pristine, annealed at 673 K, 773 K, 873 K, and 973 K.
Fig. 9. (a) Cycle performance and (b) capacity retention of Si50Al30Fe20 alloys in pristine annealed at 673 K, 773 K, 873 K, and 973 K states.
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