Density and elasticity of Zr46Cu37.6Ag8.4Al8 bulk metallic glass at high pressure

Compressional and shear wave velocities of Zr46Cu37.6Ag8.4Al8 bulk metallic glass (BMG) have been measured up to 6.3 GPa at room temperature using ultrasonic interferometry in conjunction with synchrotron X-radiography. The densities at high pressures are uniquely determined using the measured velocities. The experimental results for the elastic moduli of Zr46Cu37.6Ag8.4Al8 show a reasonable agreement with the Voigt–Reuss–Hill approximation of the element metal phases, indicating that the elastic properties of the BMG have a close correlation with its constituent components.