Tsybenko, H.; Farzam, F.; Dehm, G.; Brinckmann, S.: Scratch hardness at a small scale: Experimental methods and correlation to nanoindentation hardness. Tribology International 163, 107168 (2021)
Scientists at the Max Planck Institute for Sustainable Materials have developed a carbon-free, energy-saving method to extract nickel for batteries, magnets and stainless steel.