| 重水的冲击压缩性 |
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| 引用本文： | 刘福生,刘孝军,程菊鑫,陈先猛．经福谦．清泉.重水的冲击压缩性[J].高压物理学报,1994,8(4). |
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| 作者姓名： | 刘福生 刘孝军 程菊鑫 陈先猛．经福谦．清泉 |
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| 作者单位： | 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，成都科技大学应用物理研究所 |
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| 基金项目： | 冲击波物理与爆轰物理实验室科研基金 |
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| 摘 要： | 用二级轻气炮作为加载装置，测量了重水（D2O）的冲击压缩线，压力范围为10~43 GPa。用轴对称式电磁感应探头测量冲击波速度，测量精度约1.2%~1.5%。用电探针测量飞片速度，其精度约0.5%。用对比法原理进行测量，标准样品材料为无氧铜。实验发现，重水的冲击波速度随粒子速度变化呈斜率不同的两段直线关系，两线连结处出现拐折。分析认为，这一现象可能由液体D2O分子在冲击波作用下的离解过程引起。
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| 关 键 词： | 重水 冲击压缩性 冲击离解 |
| 收稿时间： | 1994-04-25; |
SHOCK COMPRESSIBILITY OF HEAVY WATER |
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| LIU Fu-Sheng,LIU Xiao-Jun,CHENG Ju-Xin,CHEN Xian-Meng,JING Fu-Qian,GOU Qing-Quan.SHOCK COMPRESSIBILITY OF HEAVY WATER[J].Chinese Journal of High Pressure Physics,1994,8(4). |
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| Authors: | LIU Fu-Sheng LIU Xiao-Jun CHENG Ju-Xin CHEN Xian-Meng JING Fu-Qian GOU Qing-Quan |
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| Institution: | 1. Laboratory for Shock Wave and Detonation Physics research, southwest Institute of Fluid Physics, Chengdu 610003, China;2. Institute of Applied Physics, Chengdu University of Science and Technology, Chengdu 610065, China |
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| Abstract: | Shock compression curve for heavy water (D2O) was measured in the range of 10～43 GPa by means of a two-stage light-gas gun. Shock velocities were measured to 1.2%～1.5% accuracy using the ASM probe. Impactor velocities were measured to 0.5% accuracy using an electric pin system with nanosecond time resolution. The shock impedance-match method was employed, in which the copper was used as standard. The results showed that two linear D-u fits were used to fit these data, and there exists a discontinuity between these two fits. This phenomenon may be ascribed to the dissociation of molecules of the heavy water. |
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| Keywords: | heavy water shock compression shock dissociation |
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