| PTFE/Ti/W含能材料爆炸冲击反应特性研究 |
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| 引用本文： | 李延,张韩宇,王在成,姜春兰. PTFE/Ti/W含能材料爆炸冲击反应特性研究[J]. 北京理工大学学报, 2018, 38(S2): 166-172 |
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| 作者姓名： | 李延 张韩宇 王在成 姜春兰 |
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| 作者单位： | 北京理工大学 爆炸科学与技术国家重点试验室, 北京 100081;北京航天长征飞行器研究所, 北京 100076,北京航天长征飞行器研究所, 北京 100076,北京理工大学 爆炸科学与技术国家重点试验室, 北京 100081,北京理工大学 爆炸科学与技术国家重点试验室, 北京 100081 |
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| 基金项目： | 国家自然科学基金资助项目（11672042） |
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| 摘 要： | 作为一种新概念高效毁伤元，PTFE基含能材料不仅可以对目标实现动能侵彻毁伤，还可在冲击条件下发生化学反应，产生内爆效应，从而提高毁伤效能.文中通过试验方法研究了不同W质量分数PTFE/Ti/W含能材料在炸药爆炸冲击加载条件下的化学反应特性，并与不含活性Ti的惰性PTFE/W材料进行对比.采用狭缝装置及高速摄像系统记录了含能材料的冲击反应过程，利用试验测量数据计算了含能材料的动力学参数，并讨论了不同材料的反应释能差异.结果表明，PTFE/Ti/W含能材料在炸药驱动下的化学反应具有非自持性，传播距离、W粉质量分数及孔隙度对反应释能影响显著.
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| 关 键 词： | PTFE/Ti/W 含能材料 爆炸冲击 反应特性 |
| 收稿时间： | 2019-01-20 |
Study on Jet Forming Cohesiveness of the PTFE-Based Energetic Liner |
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| LI Yan,ZHANG Han-yu,WANG Zai-cheng and JIANG Chun-lan. Study on Jet Forming Cohesiveness of the PTFE-Based Energetic Liner[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2018, 38(S2): 166-172 |
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| Authors: | LI Yan ZHANG Han-yu WANG Zai-cheng JIANG Chun-lan |
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| Affiliation: | State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Beijing Institute of Space Long March Vehicle, Beijing 100076, China,Beijing Institute of Space Long March Vehicle, Beijing 100076, China,State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China and State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | Metal/fluoropolymer composites represent a new category of efficient damage element that releases energy through exothermic chemical reactions initiated under shock loading conditions. This paper describes an experiment designed to study the reaction characteristics of PTFE(polytetrafluoroethylene)/Ti/W energetic materials with different W mass fractions under explosive loading. An inert PTFE/W mixture without reactive Ti particles is also prepared to serve as a reference. Shock-induced chemical reactions are recorded by high-speed video through a narrow observation window. Related shock parameters are calculated based on experimental data, and differences in energy release are discussed. The results show that the reaction propagation of PTFE/Ti/W energetic materials under explosive loading is not self-sustained. Propagation distance, W mass fractions and porosity have significant influences on the energy release. |
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| Keywords: | PTFE/Ti/W energetic materials explosion shock reaction characteristic |
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