33 GPa压力以下液氩冲击温度的实验测量

孟川民; 施尚春; 黄海军; 姬广富; 唐敬友; 杨向东

doi:10.11858/gywlxb.2006.03.013

33 GPa压力以下液氩冲击温度的实验测量

doi: 10.11858/gywlxb.2006.03.013

1.
中国工程物理研究院流体物理研究所冲击波物理与爆轰物理实验室，四川绵阳 621900；
2.
西南科技大学材料学院，四川绵阳 621000；
3.
四川大学原子与分子物理研究所，四川成都 610065

详细信息

通讯作者:
孟川民

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出版历程
- 收稿日期: 2005-09-09
- 修回日期: 2005-11-17
- 发布日期: 2006-09-05

Experimental Measurement for Shock Temperature of Liquid Argon up to 33 GPa

1.
Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, CAEP, Mianyang 621900, China;
2.
College of Material Research, Southwestern University of Science and Technology, Mianyang, 621000, China;
3.
Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China

More Information

Corresponding author: MENG Chuan-Min

摘要

摘要: 利用液氮冷靶系统制取液氩样品，以二级氢气炮作为加载工具，驱动飞片对液氩样品进行平面冲击压缩，实验测量了33 GPa冲击压力以下液氩的冲击温度。飞片速度由磁测速系统测量，冲击波速度和冲击温度用光纤耦合高温计系统测量，粒子速度采用阻抗匹配法计算得到。实验测得当冲击压力为33 GPa时，液氩的冲击温度超过10 000 K；而当冲击压力超过30 GPa时，冲击温度的上升趋势与理论计算相比明显变缓，该压力点正好与以前测得的冲击波速度-粒子速度曲线的拐点一致。
- 液氩 /
- 冲击温度 /
- 光纤高温计
Abstract: Shock temperature of liquid argon has been measured under the shock pressure up to 33 GPa by employing the two-stage light gas gun. Impactor velocities were measured with electrical-magnetic induction system. Shock velocities and shock temperature of liquid argon were measured by using optical-fiber pyrometer. Mass velocities were obtained by mean of shock impendence matching method. The experimental data shows that shock temperature reach 10 000 K at 33 GPa shock pressure. Over 30 GPa shock pressure, shock temperature is lower compared with theoretical data. The experimental data also shows that the slope of shock temperature-shock volume curve begins to decrease over 30 GPa, which is the same shock pressure as the previously published shock Hugoniot curve.
- liquid argon /
- shock temperature /
- optical-fiber pyrometer

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参考文献(17)

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