利用光分析方法测量液态CO多次冲击Hugoniot状态方程

郑雪萍; 刘福生; 张明建; 陈先猛; 孙悦

doi:10.11858/gywlxb.2008.04.014

利用光分析方法测量液态CO多次冲击Hugoniot状态方程

doi: 10.11858/gywlxb.2008.04.014

1.
西南交通大学高压物理实验室，四川成都 610031；
2.
四川大学原子分子物理研究所，四川成都 610065

详细信息

通讯作者:
刘福生

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出版历程
- 收稿日期: 2007-12-13
- 修回日期: 2008-03-31
- 发布日期: 2008-12-05

Multi-Shock Hugoniot Equation of State of Liquid Carbon Monoxide Measured By an Optical Analysis Technique

1.
Laboratory of High Pressure Physics, Southwest Jiaotong University, Chengdu 610031, China;
2.
Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China

More Information

Corresponding author: LIU Fu-Sheng

摘要

摘要: 结合液氮低温靶技术和光分析方法同时测量液态CO样品的第一、二、三次冲击Hugoniot状态方程，分别在19、60和71 GPa获得3个数据点。样品体积的最大压缩度达到3.5倍，比文献发表的一次冲击最大压缩度提高20%以上。体积测量值比分子流体微扰变分理论的计算结果偏低20%以上，体积发生明显软化现象归因于CO分解反应所致。详述了多次冲击过程的光分析测量方法，该方法应用于其它分子流体可将其物态方程的实验数据点延伸到更高压力和更宽的压缩范围。
- 光分析技术 /
- 低温靶技术 /
- 液态CO /
- 多次冲击 /
- Hugoniot状态方程
Abstract: The cryogenic target technique and an optical analysis technique are combined to measure multi-shock Hugoniot equations of state of liquid carbon monoxide. The first, second, and third shock pressures are respectively 19 GPa, 60 GPa, and 71 GPa. The maximum compression ratio of volume reaches three point five and twenty percent higher than that of ever reported one. The measured results for specific volume are nearly twenty percent less than the predicted ones by molecular fluid theory, which is attributed to the molecular dissociation reactions of carbon monoxide under shock compressions. The detail of the measurement technique and calculation method are described, and such a scheme can be applied to other molecular fluids to achieve higher pressures and larger compression ratios.
- optical analysis technique /
- cryogenic target technique /
- liquid CO /
- multi-shock compression /
- Hugoniot equation of state

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参考文献(18)

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