Influence of the foil material on the uniformity of the mechanical pressure pulse in electrical explosion of metal foils

Abstract

This paper presents the results of an experimental study of the temporal waveforms of the pressure amplitude in different regions of flat electrically exploded foils of M1T copper, AD1M aluminum, L63 brass, 80NKhS nickel alloy, VT1-00 titanium, and tin-clad lead. In the case of high-conductivity foils, explosion starts from the foil ends with a subsequent stronger growth of pressure in the centrally axial region of the exploded foil. It is shown that the electrical resistivity of the exploded metal is an important parameter that influences the uniformity and simultaneity of the explosion.