The invention relates to a generator of non-thermal plasma produced as jet, at atmospheric pressure, which is provided with an electric power supply system which outputs, in the absence of load, a high direct voltage, in the range of kilovolts, the said supply system being also characterized by high equivalent internal resistance, so that its operation is electrically similar to the operation of a current source or a voltage source with current limiting.
The invention relates to a method for improving the resolution of writing and 3D printing of metallic materials using laser melting deposition technique. This technique consists in blowing metal powder particles in a hot laser spot, where the powder is melted in the laser spot and hardens quickly, forming a dense metallic structure.
The invention relates to an optical device and to a process of in-situ monitoring and controlling the composition of molten steel from degassing installations, in real time, applied to the aerosols extracted from the melt.
National Institute for Laser, Plasma and Radiation Physics