Electrical Conductivity of Manganin and Iron at High Pressures

Abstract

THE properties of materials at high pressures can be measured either in static compression apparatus or dynamically, using explosively induced shocks. Pressure measurement is indirect for static methods, but a reliable figure for temperature can usually be obtained. With dynamic methods, however, absolute pressures can be found from velocity measurements, but at the moment there are no known methods for the accurate determination of temperature. Resistance is probably the simplest measurement to make in static presses at high pressures, and it was thought that a useful contribution might be the extension of this measurement by dynamic methods.