Mechanical Metamaterials Fabricated With Ultra-high Energy Absorption Capacity Researchers have created a nanolattice metamaterial with ultra-high energy absorption capacity using ion track technology, achieving a record low beam diameter of 34 nm and demonstrating excellent energy absorption and c
Mechanical Metamaterials Fabricated With Ultra-high Energy Absorption Capacity
Mechanical metamaterials refer to a class of composite materials with artificially designed structures, which exhibit extraordinary mechanical properties that traditional materials do not have. Among them, energy absorption mechanical metamaterials can absorb mechanical energy more efficiently, which requires the material itself to equip both high strength and high strain capacity, which, however, hardly co-exist in general..
In this work, based on the Heavy Ion Research Facility at Lanzhou , the researchers fabricated a new type of quasi-body centered cubic beam nanolattice mechanical metamaterial with the ion track technology. The beam diameter of the quasi-BCC nanolattice can be as small as 34 nm, a record low beam diameter of mechanical metamaterials.
Furthermore, the researchers revealed that the extraordinary mechanical properties are mainly due to the synergistic effect of size effects, quasi-BCC geometry, and good ductility of metals.
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