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聚乙烯冲击压缩特性实验研究
引用本文:黄秀光,傅思祖,舒桦,叶君建,吴江,谢志勇,方智恒,贾果,罗平庆,龙滔,何钜华,顾援,王世绩.聚乙烯冲击压缩特性实验研究[J].物理学报,2010,59(9):6394-6398.
作者姓名:黄秀光  傅思祖  舒桦  叶君建  吴江  谢志勇  方智恒  贾果  罗平庆  龙滔  何钜华  顾援  王世绩
作者单位:(1)北京应用物理与计算数学研究所,北京 100088; (2)上海激光等离子体研究所,上海 201800
基金项目:国家高技术研究发展计划(批准号:2008AA8040202)资助的课题.
摘    要:利用神光Ⅱ装置第九路输出的倍频激光,采用直接驱动方式研究了聚乙烯(CH2)材料的冲击压缩特性.实验表明聚乙烯冲击波阵面自发辐射较强,冲击波在聚乙烯台阶中的传播比较稳定.采用阻抗匹配方法,以铝作标准材料,测量了聚乙烯的冲击绝热线,聚乙烯冲击压强达0.54 TPa,冲击波速度测量相对扩展不确定度~2%(K=2),实验数据的一致性较好,与已有低压实验数据及状态方程解析模型比较符合. 关键词: 聚乙烯 冲击绝热线 自发辐射 倍频激光

关 键 词:聚乙烯  冲击绝热线  自发辐射  倍频激光
收稿时间:2009-11-03

Experimental study on shock compression properties of polyethylene
Huang Xiu-Guang,Fu Si-Zu,Shu Hua,Ye Jun-Jian,Wu Jiang,Xie Zhi-Yong,Fang Zhi-Heng,Jia Guo,Luo Ping-Qing,Long Tao,He Ju-Hua,Gu Yuan,Wang Shi-Ji.Experimental study on shock compression properties of polyethylene[J].Acta Physica Sinica,2010,59(9):6394-6398.
Authors:Huang Xiu-Guang  Fu Si-Zu  Shu Hua  Ye Jun-Jian  Wu Jiang  Xie Zhi-Yong  Fang Zhi-Heng  Jia Guo  Luo Ping-Qing  Long Tao  He Ju-Hua  Gu Yuan  Wang Shi-Ji
Institution:Shanghai Institute of Laser Plasma, Shanghai 201800, China;Shanghai Institute of Laser Plasma, Shanghai 201800, China;Shanghai Institute of Laser Plasma, Shanghai 201800, China;Shanghai Institute of Laser Plasma, Shanghai 201800, China;Shanghai Institute of Laser Plasma, Shanghai 201800, China;Shanghai Institute of Laser Plasma, Shanghai 201800, China;Shanghai Institute of Laser Plasma, Shanghai 201800, China;Shanghai Institute of Laser Plasma, Shanghai 201800, China;Beijing Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;Beijing Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;Shanghai Institute of Laser Plasma, Shanghai 201800, China;Shanghai Institute of Laser Plasma, Shanghai 201800, China;Shanghai Institute of Laser Plasma, Shanghai 201800, China
Abstract:Shock compression properties of polyethylene (CH2) were studied at SG-Ⅱ laser facility. The experimental results show that the self-emission is high,which emits from the shock-front in polyethylene. And the shock-front propagates through the polyethylene step almost with constant velocity. The Hugoniot equation of state (EOS) of polyethylene was measured by using the impedance-matching method with aluminum as standard material. Pressures are high up to 0.54 TPa in polyethylene, and the relative expanded uncertainties of the measured shockwave velocity are about 2% (K=2). Moreover, the consistency of our data is good, and our data are also consistent with existing experimental data and EOS model.
Keywords:polyethylene  hugoniot equation of state  self-emission  double frequency laser
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