Workers annealing brass cartridge casings during World War I. The casings are placed onto revolving machines which pass them through a flame at the back, which relieves residual stress in the brass and prevents season cracking.
Ion implantation is a low-temperature process by which ions of one element are accelerated into a solid target, thereby changing the target's physical, chemical, or electrical properties. Ion implanta
An ion implantation system at LAAS technological facility in Toulouse, France.