Sound Velocity in the Liquid Bismuth-Zinc System

Abstract

Sound velocity has been measured in the liquid Bismuth-Zinc system as a function of temperature and composition to investigate the propagation of ultrasonic waves in a metallic liquid alloy with a miscibility gap. The critical point determined from the dependence on temperature of the sound velocity is 580±3°C at 17.8±0.3 at.% Bi. Above the critical point, the sound velocity shows a temperature dependence associated with critical concentration fluctuations.