title: Note: Measurement method for sound velocity of melts in large volume press and its application to liquid sodium up to 2.0 GPa.
abstract: Based on large volume press and conventional pulse-echo ultrasonic technique, we have overcome the difficulty in determining the length of liquid specimen under high pressure, and the sound velocity in liquid Na has been measured up to 2 GPa. The P-V data deduced by our sound velocity results through equation of state is in an excellent agreement with previous data directly determined by piezometer method. This new experimental technique is convenient and ready for use, being expected to advance investigation on thermodynamic properties of liquid metals and other melts under high pressure.
authors: Institute of Geochemistry of Earth's Deep Interior Materials and Fluid Interaction, Chinese Academy of Sciences, Guiyang, China.
authors: Wei
authors: W
authors: Song
authors: Yonggang
authors: Y
authors: Liu
authors: Zhigang
authors: Z
authors: Wang
authors: Chaoying
authors: C
authors: Gong
authors: Jie
authors: J
authors: Guo
authors: Wenge
authors: W
authors: Zhou
authors: Hongsen
authors: H
authors: Xie