Diffusion of the erosion products of copper electrodes from electric arc channel

Abstract

The diffusion of vapour derived from electrodes is investigated for low erosion rates. In the case of low temperatures, the problem is solved analytically for free-burning and wall-stabilized electric arcs. For a wider temperature range, the problem is solved by numerical simulation. The temperature profile for the free-burning electric arc was obtained using a Gaussian approximation of experimental results.