Due to the hard carbon nanofibers and abundant welded joints among the nanofibers, the hard carbon aerogels display robust and stable mechanical performances, including super-elasticity, high strength, extremely fast recovery speed (860 mm s-1) and low energy loss coefficient (<0.16). After tested under 50 % strain for 104 cycles, the carbon aerogel shows only 2 % plastic deformation, and retained 93 % original stress.
It can be used both handheld for precision work or mounted on a stand for more controlled, larger-scale operations It can be used both handheld for precision work or mounted on a stand for more controlled, larger-scale operationsrotary jack hammer. However, due to its weight and intense vibration, operating a rotary jack hammer requires strength, skill, and safety precautions. Users should wear protective gear, including earplugs, safety glasses, and heavy-duty gloves, and ensure the tool is well-maintained to prevent accidents.