Sound Velocity in Water and Ice up to 4.2 GPa and 500 K on Multi-Anvil Apparatus

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2013,（5）
• 页码范围: 101-104
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/0256-307X/30/5/054302

摘要

A new assembly for ultrasonic measurements of water and ice on multi-anvil apparatus has been designed,and the ultrasonic compressional wave velocities in water and ice up to 4.2 GPa and 500 K are achieved.The pressure of the sample is calibrated by the melting curve of ice Ⅶ and the transformation pressure of liquid to solid at ambient temperature.The continuous changing process of the sound velocity transforming from water into ice at high pressure is achieved,and the experimental results of sound velocities at high pressure at room temperature on the melting curve of water are consistent with the previous works by Brillouin scattering.It is believed that our new method of ultrasonic measurements of water is reliable,and worth being used for studying more liquids at high pressure.