Effect of Electrodes Erosion on Electromagnetic Energy Transport Along Vacuum Transmission Lines

Abstract

The calculation model of the current erosion of the steel considering its inhomogeneous microstructure is described. A two-dimensional magneto-hydrodynamic simulation of the effect of the erosion products of the microstructural electrodes on the electromagnetic energy transport along the section of a vacuum radial transmission line is carried out. It is shown that a large part of the evaporated substance of the electrodes is penetrated into the interelectrode gap of the line. It leads to a closing of an interelectrode gap. The transmission line electrodes without a microstructure are not affected by the current erosion in the same conditions; their heating is observed only up to ~500 K.