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. 2024 Dec 10;15:10664. doi: 10.1038/s41467-024-53062-2

Fig. 1. Aluminum life cycle and the upcycle workflow.

Fig. 1

a Traditional secondary Al recycling and manufacturing route: sorting, melting and casting, transportation, rolling/extrusion, and semi-finished products (rod, bar, and sheet). b Solid-phase processing directly recycles or upcycles scrap into extrudate via friction extrusion and reduces energy consumption by avoiding energy-intensive steps.