多孔钼的高压声速测量

Experimental Study on Sound Velocity of Porous Mo under Pressure

【目的】获得更多标准材料钼的高压声速数据。【方法】在二级轻气炮上,采用反向撞击结合光分析法对多孔钼的声速进行了测量。【结果】实验获得了较低压强范围内(低于100GPa)的新的声速数据,并利用对称碰撞和非对称碰撞两种不同的方法,获得了多孔钼的冲击绝热线。【结论】钼在低压区并未有相变的发生。

[Purposes]To investigate the sound velocity of Mo under high pressure.[Methods] It is performed that the shock wave experiments for the porous Mo with an average initial density 8.58 g · cm^-3. The Hugoniot equation of state is calculated by using the Wu-Jing equation. The direct reverse-impact configuration together with the velocity interferometer system for any reflector was utilized to measure longitudinal sound velocities of porous Mo under shock compression. [Findings]Four Htigoniot sound velocity data below 100 GPa were obtained. Meanwhile, we performed three experiments to obtain the Hugoniot data. [Conelusions] Here is no phase;s transition of Mo below 100 GPa.