Measurement of Grneisen Parameter of Aluminum at High Pressure

Using a quasi-adiabatic method, and measuring the temperature change in the compressive process, we can directly determine the Grneisen parameter in various materials. In the world, only one laboratory had performed such a technique in the high pressure system in which the liquid transmit medium was used. In the present work, we report the results of determination of the Grneisen parameters of Al up to 3.5 GPa. It is the first time to carry out such a measurement in a high pressure system with solid pressure transmission medium.