Interaction of cathode spots of a vacuum-arc discharge with a metal surface during its deactivation

For the first time, the possibility of deactivation of a metal surface by the dry method by means of treatment with cathode spots of a vacuum-arc discharge is shown. A high deactivation coefficient is obtained by squeezing the liquid phase of the metal from the cathode spot with a high pressure created by the plasma flow at the base of the cathode jet. Some principles of controlling the movement of cathode spots of a vacuum arc on the surface are shown.