Skin Electrical Explosion of Plane Copper Conductors

The propagation of a nonlinear magnetic diffusion wave which arises in an electrical explosion of plane conductors occurring in a current skinning mode was investigated experimentally on a MIG generator (2.5 MA, 100 ns). The magnetic field induction was significantly greater than that necessary for the plate surface facing the electric field to explode. The loads configured as plane conductors were chosen to observe plasma formation on the back side of the plate. It was observed that on this side, under the given experimental conditions, 75 ns after the onset of current flow, a plasma channel formed in the region of the longitudinal axis of the plate. The pattern of channel formation was investigated in relation to the magnetic field strength and the plate width.