Temperature dependence of Elastic Constant of Zr-Cu-Al-Ni Bulk Glasses Measured by Ultrasonic-Wave Resonance

摘要

The temperature dependence of longitudinal elastic constant (c_(11)) of Zr_(55)Cu_(35-x)Al_(10)Ni_x bulk glasses was investigated using an ultrasonic wave velocity measurement technique blow room temperature. The c_(11) of Zr_(55)Cu_(35-x)Al_(10)Ni_x bulk glasses was estimated from the ultrasonic velocity resonance frequency of the glasses. The c_(11) values of the glasses at room temperature were found out to be close to those of Zr and Cu elements that composed chiefly the glasses. The temperature coefficients of c_(11) of the glasses were about one half of those of the composition elements of the glasses in the temperature range from approximately 90 K to room temperature.